338 Internists Found in O'Fallon, MO

We found 338 Internists available in O'Fallon, MO with an average 4 stars across 2,715 reviews. Find the best one for your needs by years of experience, distance, reviews on Vitals, and more through the filters provided below. Currently, 186 Internists listed are accepting new patients and 163 accept Medicare.

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Dr. Tamar Heisler

Pediatrics
18 years exp
Accepting New Patients
Virtual Visit available
Franklin, TN
Dr. Tami Heisler is a Board-Certified Pediatrician with over 10 years of experience providing compassionate and personalized care to children and their families at As You Are. View Profile

Eric Harker

Internal Medicine
Provided follow-up after the visit
25 years exp
Accepting New Patients
Virtual Visit available
Lyons, CO
"He now practices at Iora Primary Care in Arvada. Excellent." View Profile

Dr. Michael Albrecht, MD

Internal Medicine
Flexible scheduling
14 years exp
Accepting New Patients
Virtual Visit available
LANSING, KS
"It was grateful meeting him as my prima Doctor" View Profile

Dr. Jeffrey Allen Vanderkooi, MD

Psychiatry
Spent time with me
29 years exp
Accepting New Patients
Virtual Visit available
CHESTERFIELD, MO
"Dr. Vander Kooi saved my life twice. He was receptive when meds didn't work. He asked questions. Always checked in with my relationships with my partner and family." View Profile

Dr. Tracy Ching-Hue Burton

Pediatrics
18 years exp
Accepting New Patients
Virtual Visit available
Franklin, TN
Dr. Tracy Burton is a Board-Certified Pediatrician with over 10 years of experience providing expert care to children and families as the Chief Medical Officer at As You Are. View Profile

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Dr. Deana Lyn Kadyk, MD

Dermatology
23 years exp
O Fallon, MO2.4 mi
"Dr. Kadyk is always friendly and is thorough when doing full body skin checks. I would recommend her to anyone who wants a caring and friendly dermatologist." View Profile

Dr. James Wallace Ketchum, MD

Internal Medicine
44 years exp
O Fallon, MO1.1 mi
"Very thorough and gives you plenty of time and a good listener. I consider him a friend as well as my Doctor. Greg L." View Profile

Dr. Jamie Lee Tueth, DO

Internal Medicine
17 years exp
Accepting New Patients
O Fallon, MO
Dr. Jamie Lee Tueth, DO is a health care provider primarily located in O Fallon, MO. They have 17 years of experience. Their specialties include Internal Medicine. View Profile

Dr. Aaron Juan Pile, MD

Obstetrics & Gynecology
43 years exp
Accepting New Patients
O Fallon, MO3.0 mi
"Rest peacefully Dr. Pile! You were amazing person and has impacted and touched so many lives in a good way. You will truly be missed." View Profile

Dr. Gary D. Gray, MD

Internal Medicine
O Fallon, MO2.6 mi
"I have been going to Doctor Gary for many years now and would highly recommend him. He is very good with directing medical care and is compassionate." View Profile

Dr. Brian A Grus, MD

Internal Medicine
34 years exp
Accepting New Patients
O Fallon, MO
Dr. Brian A Grus, MD is a health care provider primarily located in O Fallon, MO. They have 34 years of experience. Their specialties include Internal Medicine. View Profile

Dr. Jeffrey Allen Vanderkooi, MD

Psychiatry
Provided follow-up after the visit
29 years exp
Accepting New Patients
Virtual Visit available
CHESTERFIELD, MO
"Dr. Vander Kooi saved my life twice. He was receptive when meds didn't work. He asked questions. Always checked in with my relationships with my partner and family." View Profile

Dr. Robert Frank Onder, MD

Allergy & Immunology
39 years exp
O Fallon, MO1.8 mi
Dr. Robert Frank Onder, MD is a health care provider primarily located in O Fallon, MO, with other offices in O Fallon, MO and O Fallon, MO. He has 39 years of experience. View Profile

Dr. Scott George Williams, MD

Obstetrics & Gynecology
35 years exp
O Fallon, MO4.7 mi
Dr. Scott George Williams, MD is a health care provider primarily located in O Fallon, MO. He has 35 years of experience. View Profile

Dr. Rabya Rasheed Mian, MD

Allergy & Immunology
29 years exp
Accepting New Patients
O Fallon, MO2.4 mi
"My daughter has been on allergy shots for 3 years. Enough time to evaluate her progress and she is so much better , cant believe how healthy she is! " View Profile

Dr. Gary G Singer, MD

Nephrology
39 years exp
Accepting New Patients
Lake Saint Louis, MO3.4 mi
Dr. Gary G Singer, MD is a health care provider primarily located in Lake Saint Louis, MO, with other offices in Saint Peters, MO and Lake Saint Louis, MO(and 6 other locations). View Profile

Dr. Geraldine A. Ryan

Internal Medicine
38 years exp
O Fallon, MO3.0 mi
Dr. Geraldine A. Ryan is a health care provider primarily located in O Fallon, MO. She has 38 years of experience. View Profile

Dr. Jeffrey Mason Wright, MD

Allergy & Immunology
47 years exp
Accepting New Patients
O Fallon, MO2.6 mi
Dr. Jeffrey Mason Wright, MD is a health care provider primarily located in O Fallon, MO, with other offices in Saint Louis, MO and O Fallon, MO(and 6 other locations). View Profile

Dr. Gregory Pius Genova, MD

Internal Medicine
46 years exp
Accepting New Patients
O Fallon, MO2.6 mi
"He spends whatever time is necessary to get the complete information of what my health issues are at the moment." View Profile

Dr. Mai Tran Hunt, MD

Internal Medicine
30 years exp
O Fallon, MO1.3 mi
Dr. Mai Tran Hunt, MD is a health care provider primarily located in O Fallon, MO, with other offices in O Fallon, MO and Saint Louis, MO(and 6 other locations). View Profile

Dr. Judith Ann Dibble, MD

Internal Medicine
40 years exp
Accepting New Patients
O Fallon, MO4.7 mi
"I am a physician, and I initially chose Dr Dibble for her excellent care of patients." View Profile

Eric Harker

Internal Medicine
Flexible scheduling
25 years exp
Accepting New Patients
Virtual Visit available
Lyons, CO
"He now practices at Iora Primary Care in Arvada. Excellent." View Profile

Dr. Zinnat Meghjee, DO

Internal Medicine
40 years exp
Accepting New Patients
O Fallon, MO4.7 mi
"I have been seeing Dr Meghjee for 6 yrs. She is the best Dr I have ever had. She listens and takes action. She takes her time explaining every detail to u." View Profile

Dr. Susan Schukar Berdy, MD

Allergy & Immunology
42 years exp
Accepting New Patients
O Fallon, MO2.6 mi
"Dr. Berdy takes the time to listen and thoroughly answer questions, citing current research to explain her course of treatment." View Profile

Dr. Wanda Tyronne Terrell, MD

Internal Medicine
47 years exp
Accepting New Patients
O Fallon, MO4.7 mi
"Love her, warm, funny and thorough. Highly recommend" View Profile

Dr. Michael Anthony Berk, MD

Endocrinology, Diabetes & Metabolism
47 years exp
Accepting New Patients
O Fallon, MO4.7 mi
Dr. Michael Anthony Berk, MD is a health care provider primarily located in O Fallon, MO, with other offices in Saint Louis, MO and Saint Peters, MO(and 6 other locations). View Profile

Dr. Kevin D Weikart

Internal Medicine
42 years exp
Accepting New Patients
O Fallon, MO3.0 mi
"Doc Weikart is a great physician and also a personal friend who cares about his patients and their entire welfare. We need more doctors and people in general like Kevin Weikart." View Profile

Dr. Matthew William Meier, DO

Internal Medicine
38 years exp
Accepting New Patients
O Fallon, MO3.0 mi
"I always appreciated Dr. Meier and his staff. Tamra is an exceptional star on his staff that deserves recognition. She is always so helpful and remarkable in her care of patients." View Profile

Dr. David Scott Lotsoff, MD

Gastroenterology
29 years exp
Accepting New Patients
O Fallon, MO4.7 mi
Dr. David Scott Lotsoff, MD is a health care provider primarily located in O Fallon, MO, with other offices in Saint Louis, MO and O Fallon, MO(and 5 other locations). View Profile

Dr. Michael Albrecht, MD

Internal Medicine
Gave an accurate diagnosis
14 years exp
Accepting New Patients
Virtual Visit available
LANSING, KS
"It was grateful meeting him as my prima Doctor" View Profile

Dr. Michael Daniel Bavlsik, MD

Internal Medicine
35 years exp
Accepting New Patients
O Fallon, MO4.7 mi
Dr. Michael Daniel Bavlsik, MD is a health care provider primarily located in O Fallon, MO, with other offices in Saint Louis, MO and Saint Peters, MO(and 5 other locations). View Profile

Dr. Elangovan Balakrishnan, MD

Oncology
33 years exp
O Fallon, MO4.7 mi
"Doctor Balakrishnan and his nurse Julie have always been very caring and attentive." View Profile

Dr. Rebecca E. Melvin, DO

Internal Medicine
Accepting New Patients
O Fallon, MO2.6 mi
Dr. Rebecca E. Melvin, DO is a health care provider primarily located in O Fallon, MO. Her specialties include Internal Medicine, Pediatrics. View Profile

Dr. Fred Jeffrey Balis, MD

Internal Medicine
37 years exp
O Fallon, MO4.7 mi
Dr. Fred Jeffrey Balis, MD is a health care provider primarily located in O Fallon, MO, with other offices in Chesterfield, MO and Saint Louis, MO(and 4 other locations). View Profile

Dr. Alan David Brook, MD

Critical Care Medicine
37 years exp
Accepting New Patients
O Fallon, MO4.7 mi
"Dr Brook is amazing. This is a very busy place. Yet, I am a priority. Dr Brook listens. I always feel heard and understood." View Profile

Dr. Naveed Razzaque, MD

Internal Medicine
45 years exp
Accepting New Patients
O Fallon, MO4.7 mi
"It seems that I've been a patient of Dr. Razzaque forever. and I could'nt be more satisfied!" View Profile

Dr. Angela Lilnette Brown, MD

Cardiovascular Disease
34 years exp
Accepting New Patients
O Fallon, MO4.7 mi
"She has been my doctor for only a short while but this is the first time my blood pressure has been in normal range in about 20years plus. And she LISTENED to me as a person." View Profile

Dr. Martin William Schwarze, DO

Cardiovascular Disease
53 years exp
Accepting New Patients
O Fallon, MO2.0 mi
Dr. Martin William Schwarze, DO is a health care provider primarily located in O Fallon, MO, with other offices in Farmington, MO and Saint Peters, MO(and 11 other locations). View Profile

Dr. Neha Karajgikar, MD

Endocrinology, Diabetes & Metabolism
13 years exp
Accepting New Patients
O Fallon, MO
Dr. Neha Karajgikar, MD is a health care provider primarily located in O Fallon, MO, with another office in O Fallon, MO. She has 13 years of experience. View Profile

Dr. Valsa Madhava, MD

Addiction Medicine
39 years exp
Accepting New Patients
New York, NY
"SGI International or Soka Gakkai International (Value Creation Society) is a worldwide organization with over 11 million members in 192 countries promoting peace, culture and education focused on global issues from a Buddhist perspective." View Profile

Dr. Jeffrey Kreher, MD

Internal Medicine
27 years exp
Accepting New Patients
Saint Louis, MO
Dr. Jeffrey Kreher, MD is a health care provider primarily located in Saint Louis, MO. He has 27 years of experience. View Profile

Dr. Patrick Francis Majors, MD

Internal Medicine
51 years exp
Accepting New Patients
O Fallon, MO4.7 mi
"I went to Dr. Majors yrs ago .I moved and lost my insurance so going to a Dr. was an extravagant expense ." View Profile

Dr. Antonella Luisa Rastelli, MD

Oncology
35 years exp
Accepting New Patients
O Fallon, MO4.7 mi
"Dr. Rastelli is an excellent physician. I met her because my doctor left. She is caring and kind and quite efficient. I highly recommend her if your in need of a physician." View Profile

Dr. Bobby H. Shah, MD

Internal Medicine
Accepting New Patients
O Fallon, MO2.6 mi
"I have been around a loong time - seen many mds -- most of them semi-worthless -- uncaring, money-grubbbing, etc. Bobby seems to be one of the GOOD ones." View Profile

Dr. Benjamin M Goldstein, MD

Endocrinology, Diabetes & Metabolism
62 years exp
Accepting New Patients
O Fallon, MO4.7 mi
Dr. Benjamin M Goldstein, MD is a health care provider primarily located in O Fallon, MO, with other offices in Saint Louis, MO and Saint Peters, MO(and 4 other locations). View Profile

Dr. Danita Lynn Cole, MD

Internal Medicine
35 years exp
O Fallon, MO4.7 mi
Dr. Danita Lynn Cole, MD is a health care provider primarily located in O Fallon, MO, with other offices in O Fallon, MO and Bridgeton, MO(and 3 other locations). View Profile

Dr. Robert L Bonsanti, MD

Internal Medicine
O Fallon, MO2.5 mi
Dr. Robert L Bonsanti, MD is a health care provider primarily located in O Fallon, MO. Their specialties include Internal Medicine. View Profile

Dr. Casey Louis Stahlheber, MD

Critical Care Medicine
22 years exp
O Fallon, MO4.7 mi
"Great physician! Thorough, asks and answers questions.Concerned about possible underlying causes; and will not ignore them." View Profile

Dr. Steven Dale Jacobson, MD

Internal Medicine
41 years exp
Accepting New Patients
O Fallon, MO4.7 mi
"Highly impersonal staff" View Profile

Laura L. Hill, ANP

Internal Medicine
Accepting New Patients
O Fallon, MO
"seen her first time today very nice no rushing answered my questions and followed up with me once my lab work came back" View Profile

Dr. Salma Qamar Kazmi, MD

Internal Medicine
29 years exp
Accepting New Patients
O Fallon, MO4.7 mi
Dr. Salma Qamar Kazmi, MD is a health care provider primarily located in O Fallon, MO, with other offices in Chesterfield, MO and Chesterfield, MO(and 4 other locations). View Profile

Dr. John Charles Wendt, MD

Family Medicine
37 years exp
Accepting New Patients
O Fallon, MO4.7 mi
Dr. John Charles Wendt, MD is a health care provider primarily located in O Fallon, MO, with other offices in Wentzville, MO and Wentzville, MO(and 3 other locations). View Profile

Dr. Shobha L N Dixit, MD

Internal Medicine
37 years exp
O Fallon, MO4.7 mi
Dr. Shobha L N Dixit, MD is a health care provider primarily located in O Fallon, MO, with other offices in Saint Charles, MO and Saint Louis, MO(and 3 other locations). View Profile

Dr. David Brian Yablonsky, DO

Internal Medicine
28 years exp
Accepting New Patients
O Fallon, MO3.9 mi
Dr. David Brian Yablonsky, DO is a health care provider primarily located in O Fallon, MO, with other offices in Maryville, IL and Du Quoin, IL(and 6 other locations). View Profile

Dr. Kishan D Yalavarthi, MD

Neuroradiology
27 years exp
Accepting New Patients
O Fallon, MO4.7 mi
Dr. Kishan D Yalavarthi, MD is a health care provider primarily located in O Fallon, MO, with other offices in O Fallon, MO and Chesterfield, MO(and 5 other locations). View Profile

Dr. Thomas John Greco, MD

Internal Medicine
46 years exp
O Fallon, MO4.7 mi
"Up to date, best practices, great bedside manner." View Profile

Dr. Daniel Ragin Jasper, MD

Internal Medicine
32 years exp
O Fallon, MO4.7 mi
"Dr. Jasper has been my physician for 10 years. He is one of the best in St. Louis." View Profile

Dr. Kaori Ardeth Sakurai, MD

Internal Medicine
29 years exp
O Fallon, MO4.7 mi
Dr. Kaori Ardeth Sakurai, MD is a health care provider primarily located in O Fallon, MO, with other offices in Saint Peters, MO and Creve Coeur, MO(and 3 other locations). View Profile

Dr. Seth N Barbanell, MD

Cardiovascular Disease
43 years exp
Accepting New Patients
O Fallon, MO2.8 mi
Dr. Seth N Barbanell, MD is a health care provider primarily located in O Fallon, MO, with another office in O Fallon, MO. They have 43 years of experience. View Profile

Dr. Kevin Tianber Yin

Internal Medicine
4 years exp
Accepting New Patients
O Fallon, MO3.0 mi
"Dr. Yin is a wonderful doctor. He is very caring, respectful, and professional. A very on-point, kind, and focused doctor. I have total confidence in his care." View Profile

Dr. Kent Alexander Neil Cassmeyer, MD

Internal Medicine
11 years exp
O Fallon, MO
Dr. Kent Alexander Neil Cassmeyer, MD is a health care provider primarily located in O Fallon, MO. He has 11 years of experience. His specialties include Internal Medicine. View Profile

Dr. Tracy Ching-Hue Burton

Pediatrics
18 years exp
Accepting New Patients
Virtual Visit available
Franklin, TN
Dr. Tracy Burton is a Board-Certified Pediatrician with over 10 years of experience providing expert care to children and families as the Chief Medical Officer at As You Are. View Profile

Dr. Tamar Heisler

Pediatrics
18 years exp
Accepting New Patients
Virtual Visit available
Franklin, TN
Dr. Tami Heisler is a Board-Certified Pediatrician with over 10 years of experience providing compassionate and personalized care to children and their families at As You Are. View Profile

Dr. Meggan Caroline Dempewolf

Internal Medicine
O Fallon, MO1.1 mi
Dr. Meggan Caroline Dempewolf is a health care provider primarily located in O Fallon, MO. Her specialties include Internal Medicine. View Profile

Dr. Alexander Bollis, MD

Cardiovascular Disease
49 years exp
Accepting New Patients
O Fallon, MO2.6 mi
Dr. Alexander Bollis, MD is a health care provider primarily located in O Fallon, MO, with another office in O Fallon, MO. He has 49 years of experience. View Profile

What is an Internist and How Can They Help You?

An internist specializes in adult medicine, providing comprehensive care for complex medical conditions. These physicians excel at diagnosing challenging cases and managing patients with multiple organ system involvement.

Internists complete medical school and a three-year internal medicine residency. Many pursue subspecialty fellowship training in fields such as cardiology, gastroenterology, or infectious disease, though general internists maintain broad adult medical expertise.

An Internist's clinical practice encompasses:

  • Concentrates on adult patient populations and multi-system medical management
  • Conducts medical history reviews, physical assessments, diagnostic test interpretation
  • Manages metabolic disorders, cardiovascular disease, pulmonary conditions, infectious processes, and immune-mediated diseases
  • Employs pharmaceutical management, preventive medicine, health counseling, and specialist coordination
  • Alternative titles: adult medicine specialist, general internist, MD, DO

Frequently Asked Questions

What's the best way to search for an Internist in O'Fallon who accepts my health insurance?
Navigate to the insurance filter located at the top of the search page and select your health plan. This will display only Internists in O'Fallon who are in-network with your carrier. For additional confirmation, visit each doctor's profile or reach out to their office by phone.
Where can I find Internists in O'Fallon who offer virtual appointments?
Select the "Virtual Visit" filter at the top of the search page to see Internists providing telehealth services in O'Fallon. Check each doctor's profile for video visit options and online scheduling availability. You may also call their office to set up a remote consultation.
What's the easiest way to locate highly-rated Internists in O'Fallon?
Use the "Ratings" filter at the top of the search page to filter results by the average star rating. Browse individual profiles to see patient reviews and ratings in detail. When comparing Internists, look at both the average star rating and how many patients have submitted reviews.
Is it possible to schedule a same-day visit with an Internist in O'Fallon?
Visit individual doctor profiles to see their current scheduling availability in O'Fallon. If you don't see same-day openings listed online, try calling their office—walk-in times may be available that don't appear on the website.
Which Internists in O'Fallon have the shortest wait times?
Review the Ratings & Reviews card on each provider's profile to see their average wait time in O'Fallon. This helps you find an Internist that doesn’t make their patients wait too long.
Can I schedule appointments with Internists in O'Fallon without calling?
Search for Internists who have "Book Online" or "Request Now" options on their profiles. Click these buttons to access online appointment scheduling. If a provider doesn't offer web-based booking, their phone number will be available for traditional scheduling.
How do I locate an Internist in O'Fallon with evening or weekend hours?
Check the Locations card on each profile to view office hours for Internists in O'Fallon. This helps you find providers with non-traditional availability. For the most accurate information about extended availability, call the office directly.
How do I leave feedback about my appointment with an Internist in O'Fallon?
Go to your doctor's profile page and click the "Leave a Review" button or link. You can share your rating and write about your experience. Patient reviews like yours help others in the community choose the right Internist.
How can I locate an Internist in O'Fallon who is fluent in my preferred language?
Review the language information displayed on individual profiles for Internists. If this information isn't available online, contact the office directly to ask about the doctor's language capabilities or whether interpreters are available.
How do I search for an Internist in O'Fallon who works at a particular hospital or medical center?
Check the "Hospital Affiliation" and "Locations" sections on each provider's profile to see where Internists practice. You can also enter a specific hospital or medical group name into the search tool to find Internists who work there.

Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews

Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.

Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.

Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.