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Adult Primary Care
Committed to providing the most comprehensive individualized care for adults at any stage.
Appointments and Billing
- New Patients (803) 935-8562
- Current Patients (803) 936-7480
- Irmo Fax (803) 936-7481
- Billing and Insurance (803) 791-2300
Locations
Irmo
Today:
8:00 a.m. – 12:00 p.m.
- Monday 8:00 a.m. – 5:00 p.m.
- Tuesday 8:00 a.m. – 5:00 p.m.
- Wednesday 8:00 a.m. – 5:00 p.m.
- Thursday 8:00 a.m. – 5:00 p.m.
- Friday 8:00 a.m. – 12:00 p.m.
- Saturday Closed
- Sunday Closed
About Lexington Internists Irmo
We offer a wide array of services including preventative care, treatment of minor and severe illnesses, and chronic condition management.
Services
- Preventative Care and Annual Wellness Screenings
- Comprehensive Condition Management
- Acute Illness Sick Visits
- In-Office Laboratory
- Minor Procedures
- Vaccinations
Patient Reviews
Ratings and reviews are based on third-party surveys carried out by Press Ganey.
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Brandi P. Derrick MD
July 31, 2026Dr. Derrick is wonderful. She listens to everything you say and includes your thoughts and concerns in her decision on your care.
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Cassandra Patterson MD
July 31, 2026She has been a wonderful doctor for me for many years.
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Nehal T. Desai MD
July 31, 2026Dr. Desai and the nurse are tops! Please feel free to publicize my comments. They are a fine team. The nurse goes the extra mile to adjust appointments when necessary. She can make a stormy day sunny with her positive outlook. Dr. Desai is always punctual and efficient. These two are examples of the way medicine can be practiced well - kind, effective, professional. They are among the best in the Lexington Health system.
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Brandi P. Derrick MD
July 30, 2026Dr Derrick is outstanding!! One of my favorite providers ever!
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Brandi P. Derrick MD
July 30, 2026Excellent care
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Brandi P. Derrick MD
July 29, 2026Dr. Derrick and her team are very attentive to my health care and needs. They are an excellent health care team and I recommend them highly.
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P. Michele Head MSN, FNP-C
July 29, 2026Michelle Head is the best primary provider my wife and I have ever had!!!!!!!!!
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Brandi P. Derrick MD
July 27, 2026I absolutely LOVE Dr. Derrick. She always gives you plenty of her time and really listens. Great doctor! Need more like her!!!!
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Brandi P. Derrick MD
July 27, 2026Dr. & nurse gave their undivided attention to me.
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Brandi P. Derrick MD
July 25, 2026I appreciate that Dr Derrick takes the time to talk with me and come up with a plan for treatment!
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P. Michele Head MSN, FNP-C
July 25, 2026Ms. Head is one of of best primary care providers in years. My husband and trust her with our care and consider her medical advice to what’s best for us.
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Marisa Gentry MSN, FNP-BC
July 25, 2026Everyone is very kind and very helpful with your care being
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Marisa Gentry MSN, FNP-BC
July 24, 2026Marisa is fantastic, and I appreciate the time that she is willing to spend with me during appointments.
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Cassandra Patterson MD
July 24, 2026Dr. Patterson is my general practitioner/Internist. Even though we now live 2 1/2 hours away from an office, she will continue to be my doctor because she is so smart and caring and helpful.
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P. Michele Head MSN, FNP-C
July 23, 2026Michelle Head is so thorough and patient with questions I have!
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Brandi P. Derrick MD
July 20, 2026First visit to this location to see my Dr. the staff was very accommodating and pleasant.
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Nehal T. Desai MD
July 20, 2026Professional,kind and caring’,also patient
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Nehal T. Desai MD
July 19, 2026Dr. Desai is wonderful!
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Hadyn Gause MSN, FNP-C
July 18, 2026Excellent ability to communicate and maintain compassion of care. Very knowledgeable of medical practices.
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Marisa Gentry MSN, FNP-BC
July 18, 2026Marisa Gentry is the best, she truly cares about her patients, listens and understands what women face.
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Cassandra Patterson MD
July 18, 2026I love the care and attention Dr. Patterson shows me in regards to my needs. Dr Patterson nurse, always have a smile and very attentive as well. Go team.
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Cassandra Patterson MD
July 18, 2026Dr. Patterson s one of the best
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P. Michele Head MSN, FNP-C
July 15, 2026NP Michele has helped me tremendously since consistently seeing her.
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Brandi P. Derrick MD
July 12, 2026I love Dr Derrick & her staff. Always a pleasant visit.
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Marisa Gentry MSN, FNP-BC
July 12, 2026Clean, professional and little wait time
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P. Michele Head MSN, FNP-C
July 11, 2026Michelle Head is awesome. Everyone was nice.
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Marisa Gentry MSN, FNP-BC
July 11, 2026I will follow Marisa Gentry at any location! She is exceptional at listening and concerns and diagnosing . Then the medication choice that is best for the problem!
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Cassandra Patterson MD
July 10, 2026Dr. Patterson always provide excellent care via winderful communicating.
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Cassandra Patterson MD
July 9, 2026Dr Patterson the best as well as her staff
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Marisa Gentry MSN, FNP-BC
July 9, 2026I love Marisa Gentry! She is one of the best providers I have seen in many years. Her care team is also excellent!
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Cassandra Patterson MD
July 8, 2026Dr. Patterson is the best! So thankful for the care she gives me!!
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Marisa Gentry MSN, FNP-BC
July 7, 2026This was an initial visit with Marisa Gentry as a new patient and I was very impressed with the time she took to find out about my health history and current needs.
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P. Michele Head MSN, FNP-C
July 6, 2026Patricia Michele Head, NP has been my Primary Care provider for several years. She is a great listener, very patient and thorough with explanations and advice concerning my health problems.
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P. Michele Head MSN, FNP-C
July 1, 2026Loved Michele Head..very caring.
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P. Michele Head MSN, FNP-C
July 1, 2026Michelle Head, NP is probably the best provider I have ever seen and so glad that I am under her care! She is the Epitome of what a provider should be. So impressed!!!
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Cassandra Patterson MD
June 30, 2026Caring and understanding of anything I’m going through.Always have time to talk about my health issues.
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Brandi P. Derrick MD
June 30, 2026Excellent bedside manners. Patient. Kind. Great explanations that you can understand.
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Hadyn Gause MSN, FNP-C
June 29, 2026Hadyn Gause is such an amazing health care provider! I highly recommend her to anyone needing a provider! She and her team are very caring and helpful!
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Marisa Gentry MSN, FNP-BC
June 27, 2026Love both Marisa & LPN! The best team!
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Brandi P. Derrick MD
June 25, 2026Dr Derrick and staff are outstanding!
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Brandi P. Derrick MD
June 24, 2026Dr. Derrick and her Staff are wonderful! Each and everyone of them are the best I have ever known. I’m a retired Nurse and I know when a staff is kind, patient, intelligent and knowledgeable. Dr.Derrick is the best and so are her staff members. I am blessed to be her Patient!
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Brandi P. Derrick MD
June 24, 2026Dr. Derrick and her staff are always professional and courteous. You don't feel like just another number . Dr. Derrick listens to you and explains what medication and why she feels you need it. I trust Dr. Derrick completely.
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Marisa Gentry MSN, FNP-BC
June 23, 2026Marisa was knowledgeable, a good listener and compassionate. Able to answer my questions.
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Cassandra Patterson MD
June 22, 2026MD has been my provider for years
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Brandi P. Derrick MD
June 20, 2026Great Care
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Hadyn Gause MSN, FNP-C
June 20, 2026NP Gause seems to really care about you both physically and personally.
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Brandi P. Derrick MD
June 20, 2026An excellent doctor
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Hadyn Gause MSN, FNP-C
June 19, 2026Friendly and professional attitude
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Marisa Gentry MSN, FNP-BC
June 17, 2026My provider is the bestest. I’m so happy I chose her years ago
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Marisa Gentry MSN, FNP-BC
June 17, 2026A + Service
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Brandi P. Derrick MD
June 17, 2026Dr. Derrick and her staff will go beyond to ensure the patient is receiving good care. I didn't have an appointment but had an emergency. I was worked in with no problem. Thank you staff
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P. Michele Head MSN, FNP-C
June 17, 2026Patient concern and displayed understanding of my medical issues.
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Cassandra Patterson MD
June 15, 2026Dr Cassandra Patterson is always consistent and knowledgeable about any concerns or regular treatment. I always feel heard & cared for.
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Hadyn Gause MSN, FNP-C
June 15, 2026I am rather new to this practice but the overall team is very professional and responsive. Hadyn Gause is great! She listens to my concerns with care and makes recommendations based on my feedback combined with her professional opinion. I feel I can 100% trust my care in her hands. Highly recommend!
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Cassandra Patterson MD
June 13, 2026Dr Patterson, is a very compassionate & caring person & Dr. She is always positive, I need that. She always has mine & my husband’s best interests at heart. She is also always punctual
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Marisa Gentry MSN, FNP-BC
June 12, 2026Wonderful team that listens to me and cares about me.
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P. Michele Head MSN, FNP-C
June 12, 2026This was one of my best experiences interacting with a medical provider and staff ever. I highly recommend Patricia M. Head and the entire staff in her office to anyone looking for a PCP.
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Brandi P. Derrick MD
June 11, 2026Yes I would recommend my provider to everyone. She answers all my questions help me out and things I’m looking at to do and keep me going. She’s made me feel very comfortable relax and I trust her thoroughly.
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P. Michele Head MSN, FNP-C
June 10, 2026Excellent care
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Hadyn Gause MSN, FNP-C
June 7, 2026NP Hadyn ALWAYS listens and never rushes me. She is thorough, thoughtful, and has great insight. I am so thankful she is my(and my husband's GP)!
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Cassandra Patterson MD
June 7, 2026I like my doctor very much
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P. Michele Head MSN, FNP-C
June 7, 2026Love this woman and drive all the way across town to see her. She’s awesome!
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Cassandra Patterson MD
June 6, 2026A highly professional and caring doctor!
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Brandi P. Derrick MD
June 6, 2026I have complete confidence in my care.
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Marisa Gentry MSN, FNP-BC
June 4, 2026Marisa Gentry and the staff were very personable and efficient. Kudos.
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Nehal T. Desai MD
June 3, 2026Five stars service thanks.
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Brandi P. Derrick MD
June 3, 2026Dr. Derrick always spends time discussing my tests and any health concerns or issues I may have. She never is in a rush or makes me feel like I have to hurry up and get in and out. She is so pleasant and easy to talk to and really cares about me as a person as well as a patient.
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Brandi P. Derrick MD
May 30, 2026Dr. Derrick and her team are amazing.
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Cassandra Patterson MD
May 30, 2026Love Dr. Patterson! She has always been very attentive to my needs!
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P. Michele Head MSN, FNP-C
May 29, 2026Patricia Head is s very good NP she takes the time to listen to her Patients she is a very good Doctor.
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P. Michele Head MSN, FNP-C
May 28, 2026Michelle is a wonderful, caring and extremely knowledgeable healthcare professional. I am blessed to be a patient under her care.
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Cassandra Patterson MD
May 28, 2026Dr Patterson is the best hands down !
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Nehal T. Desai MD
May 28, 2026Dr Desai and nurse really went beyond to take great care of me.
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P. Michele Head MSN, FNP-C
May 26, 2026Michelle Head is wonderful!! I haven't ever had a physician listen and care for me as much as she does.
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Cassandra Patterson MD
May 25, 2026Dr.Cassandra Patterson and her team are great!! They treat us like family. She always makes us feel comfortable. She explains everything and makes sure we are ok.
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Cassandra Patterson MD
May 24, 2026I love the doctors practice. I feel very comfortable speaking with my doctor and the nurses.
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P. Michele Head MSN, FNP-C
May 23, 2026Michelle Head was very thorough and we discussed my medical history and any concerns I had.
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Hadyn Gause MSN, FNP-C
May 23, 2026PA Hayden Gause is always professional, thorough and a pleasant to have them attend to my physical well-being.
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Cassandra Patterson MD
May 22, 2026I couldn't have received better treatment than that Dr. Patterson and her staff provided. They are all caring and show concern for my well being and recovery. An excellent doctor and staff.
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P. Michele Head MSN, FNP-C
May 21, 2026NP Patricia Head is the best
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P. Michele Head MSN, FNP-C
May 21, 2026Michelle Head always listens to what I have to say. Very compassionate
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Hadyn Gause MSN, FNP-C
May 20, 2026Hadyn and assistant are both wonderful medical professionals!
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Marisa Gentry MSN, FNP-BC
May 19, 2026Marisa Gentry is marvelous. Very professional and knowledgeable and cares about her patients. A treasure
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Cassandra Patterson MD
May 18, 2026I was completely satisfied with my treatment
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P. Michele Head MSN, FNP-C
May 17, 2026Michelle is a very dedicated and compassionate provider. I wish we could clone her and her talents. I feel she listens and hears me. Thanks you Lexington Internist for having on your staff.
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Cassandra Patterson MD
May 16, 2026Dr. Patterson is a very good doctor well liked
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P. Michele Head MSN, FNP-C
May 16, 2026Michele did an excellent job of going over my lab work and making some suggestions for my areas of concern.
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Marisa Gentry MSN, FNP-BC
May 16, 2026Marisa is one of, if not, the best practitioners I have ever been fortunate enough of to have as my current GP. She is so thorough and really digs to get to the source of problems instead of just throwing pills or other non-effective remedies at me. She truly cares about my overall wellbeing and is so expedient in her response to questions I have at any time.
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Hadyn Gause MSN, FNP-C
May 12, 2026Hadyn is great
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Nehal T. Desai MD
May 8, 2026It was a very good visit as always.
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Marisa Gentry MSN, FNP-BC
May 3, 2026Very understanding and knowledgeable
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Nehal T. Desai MD
May 2, 2026As usual all comcerns was talked about and explained with genuine compassion and clarity
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Marisa Gentry MSN, FNP-BC
April 30, 2026Marissa Gentry, NP is an exceptional medical professional. Nurse is very, very good. Great team!!
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Marisa Gentry MSN, FNP-BC
April 29, 2026As always, attention both in general and to detail, exceeds expectations.
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Hadyn Gause MSN, FNP-C
April 26, 2026Hadyn is amazing!
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Marisa Gentry MSN, FNP-BC
April 26, 2026Very good doctor Marisa Gentry
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Marisa Gentry MSN, FNP-BC
April 26, 2026Marisa Gentry is just a wonderful human being and a great Doctor.
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Nehal T. Desai MD
April 19, 2026I love the care.
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Hadyn Gause MSN, FNP-C
April 15, 2026Hadyn Gause and the staff are very personable and compassionate! Love them!
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Hadyn Gause MSN, FNP-C
April 1, 2026Excellent service as always
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Hadyn Gause MSN, FNP-C
April 1, 2026Hadyn Gause is a great NP and the only reason I still use LMC
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Hadyn Gause MSN, FNP-C
March 22, 2026NP Gause is an excellent health care provider.
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Hadyn Gause MSN, FNP-C
March 9, 2026I love Hadyn! She listens to me and responds to my concerns and doesn't suggest "just another pill". She is the best and I'm thrilled that I found her!
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Hadyn Gause MSN, FNP-C
March 7, 2026I absolutely love Haydn Gause. Our healthcare system is going down the tubes but she gives me hope. She listens and comes up with solutions. She really does care.
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Hadyn Gause MSN, FNP-C
March 6, 2026Dr. Gause was outstanding!
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Hadyn Gause MSN, FNP-C
February 23, 2026Hadyn is great!!!!
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Hadyn Gause MSN, FNP-C
February 21, 2026I love my nurse and doctor ❤️ They are always helpful and knowledgeable and ALWAYS takes good care of me and my health.
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Nehal T. Desai MD
February 21, 2026All good!
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Nehal T. Desai MD
February 19, 2026Thanks. I am feeling better.
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Nehal T. Desai MD
February 15, 2026I love my doctors
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Hadyn Gause MSN, FNP-C
February 12, 2026Hadyn is the best. Everyone in that office are truly exceptional people.
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Nehal T. Desai MD
February 4, 2026Had a great visit
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Nehal T. Desai MD
January 10, 2026Very professional service THANKS
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Nehal T. Desai MD
January 8, 2026The doctore seemed distracted and forgetful, so maybe he was having a bad day.
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Nehal T. Desai MD
January 7, 2026This was a first time visit. Plans were satisfactorily made for future visits.
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Nehal T. Desai MD
January 6, 2026I love my doctor. My doctor is very wise.. Thank you to all the staff there
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Nehal T. Desai MD
December 30, 2025The doctor and his staff are friendly and professional.
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Nehal T. Desai MD
December 14, 2025He listened very well and had clearly reviewed my full medical history prior to being seen. This was very beneficial as he was able to make specific recommendations based on my history.
Our Doctors
Doctor
Adult Primary Care
368 Patient Ratings
Read 109 Patient Reviews
Doctor
Adult Primary Care
207 Patient Ratings
Read 18 Patient Reviews
Doctor
Adult Primary Care
331 Patient Ratings
Read 82 Patient Reviews
Advanced Practice Providers
Advanced practice providers are highly trained medical professionals who help deliver patient care.
Hadyn Gause MSN, FNP-C
Nurse Practitioner
Adult Primary Care
207 Patient Ratings
Read 29 Patient Reviews
Marisa Gentry MSN, FNP-BC
Nurse Practitioner
Adult Primary Care
246 Patient Ratings
Read 61 Patient Reviews
P. Michele Head MSN, FNP-C
Nurse Practitioner
Adult Primary Care
248 Patient Ratings
Read 73 Patient Reviews
Appointments
Complete eCheck-in with MyChart.
As soon as seven days before an appointment, you can complete eCheck-in through MyChart. You can update information and electronically sign documents before your appointment to make the check-in process faster.
Arrive 15 minutes before your appointment.
Come early to update any necessary information. If you arrive more than 10 minutes after your appointment time, we may ask you to reschedule.
Let us know as soon as possible if you have to cancel.
Please do your best to cancel at least 24 hours before your appointment. If you cancel three times without advance notice, we may dismiss you from our practice.
Payment will be due at the time of your appointment.
Payment is due the day of service, including copayments, coinsurance and any other charges. If your care isn't covered by insurance, you are entitled to a 50% discount.
Please contact our billing department in Customer Service for assistance with your account at (803) 791-2300.
Prescription Refills
Call and leave a message with your name, date of birth, prescription and strength, along with your doctor’s name and your pharmacy’s name and number. Allow one to two business days for us to process the refill. We won't contact you about the request unless there is a problem.
We cannot refill some prescriptions.
You may be required to see your provider before we can refill your medication. We also do not accept refill requests from local or mail-order pharmacies—you must request these refills.
Lab/Test Results
You can receive timely notifications and view lab results from tests you’ve had done through MyChart. Test results should be available within 7 to 10 business days.
Referrals
Allow up to 7 days for your referral to go through. Once it does, our office or the specialist's office will call you with your appointment information. If you make your own appointment, please let us know as soon as possible so we can obtain any prior authorizations that may be required.
Forms
Due to the volume of forms we process, please allow up to 10 business days for us to complete them. There may also be a charge for completing your form, or your provider may require that you come in for an office visit for assistance in completing your form.
Immunization Records
Please allow up to two business days on all immunization record requests. If you must call our office for an immunization record, you may be asked to leave a message with the patient’s name, birth date, and contact phone number.
School/Work Excuses
School/work excuses will be issued at the provider’s discretion only when the patient has had an appointment.
Questions for Your Care Team
You can exchange messages with your providers and read doctor’s notes from recent visits in MyChart. Keep messages short and to the point. We will get back to you as soon as possible.
Message Your Care Team in MyChart
Emergencies
After hours there will be an on-call provider who will be available for urgent needs that cannot wait until the next business day. If an emergency occurs after hours, please have paper, pencil and pharmacy phone number available. Prescription refills will not be handled by the on-call provider nor will pain medications, controlled substances or antibiotics be prescribed to your pharmacy.
Privacy & Legal
Notice of NondiscriminationLexington Medical Center complies with applicable Federal civil rights laws and does not discriminate on the basis of race, color, national origin, age, disability, or sex.
Spend Less Time Waiting
Download and fill out these patient forms before your appointment to spend less time in the waiting room.
New Patients
English
Current Patients
Privacy Policy
We keep your patient information confidential. Read our privacy policy for more details.
Mantenemos la confidencialidad de la información del paciente. Lea nuestra política privada.
Privacy Policy
We keep your patient information confidential. Read our privacy policy for more details.
Mantenemos la confidencialidad de la información del paciente. Lea nuestra política privada.