How many internal medicine doctors are in O Fallon, MO?

60 Medicare-enrolled internal medicine doctors practice in O Fallon according to CMS. The largest groups are Physician Groups Lc (47), Mercy Clinic East Communities (6).

Which hospitals do O Fallon internal medicine doctors work with?

The hospitals O Fallon internal medicine doctors most often list as an affiliation are Missouri Baptist Medical Center (43), Barnes Jewish Hospital (29), Barnes-Jewish West County Hospital (28), St John's Mercy Medical Center (17). An affiliation usually means the doctor can treat or admit patients there.

Do these internal medicine doctors accept Medicare?

All are enrolled in Medicare. 58 of 60 accept Medicare assignment, meaning they take the Medicare-approved amount as full payment for covered services, and 2 may accept it case by case. 23 offer telehealth visits. Confirm with the office before booking, especially if you have Medicare Advantage or private insurance.

What does an internal medicine doctor do?

Internists are primary care physicians for adults. They diagnose and manage a wide range of conditions, coordinate care with specialists and focus on prevention.

Internal medicine doctors in O Fallon, MO (60 doctors)

Leen H. Al-Sayyed, MD

Internal Medicine19 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment

Hospital affiliations

NPI 1053626242

Charmaine Ansari, MD

Internal Medicine28 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment Pennsylvania State University College Of Medicine

Hospital affiliations

NPI 1972613297

Nabeel A. Badar

Internal Medicine4 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment

Hospital affiliations

NPI 1083351993

Anna E. Bailey, MD

Internal Medicine8 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment Telehealth

Hospital affiliations

NPI 1811482250

Leigh R. Ball

Internal Medicine10 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment Telehealth

Hospital affiliations

NPI 1134583925

William D. Birenbaum, MD

Internal Medicine44 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment Telehealth University Of Missouri, Columbia School Of Medicine

Hospital affiliations

NPI 1407876550

Daniela Blum Morales, MD

Internal Medicine11 years in practice

Mercy Clinic East Communities

2223 Technology Dr, Suite 40, O Fallon, MO 63368

(636) 755-4400

Accepts Medicare assignment Telehealth

Hospital affiliations

St John's Mercy Medical Center

NPI 1730561069

David J. Brown, MD

Internal Medicine31 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment Telehealth Washington University School Of Medicine

Hospital affiliations

NPI 1861433195

Kent Alexander N. Cassmeyer, MD

Internal Medicine11 years in practice

Mercy Clinic East Communities

300 Winding Woods Dr, O Fallon, MO 63366

Accepts Medicare assignment Telehealth

Hospital affiliations

NPI 1417307505

Lilibeth M. Cayabyab Loe, MD

Internal Medicine36 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment Telehealth University Of Missouri, Columbia School Of Medicine

Hospital affiliations

NPI 1578672614

Farah A. Chohan

Internal Medicine4 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment Harvard Medical School

Hospital affiliations

Christian Hospital Northeast

NPI 1679205918

Stephen Cohen, MD

Internal Medicine11 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment Telehealth Louisiana State University School Of Medicine In Shreveport

Hospital affiliations

NPI 1710374111

Kevin P. Dehaan, MD

Internal Medicine14 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment Geisel School Of Medicine At Dartmouth

Hospital affiliations

NPI 1912265174

Meggan C. Dempewolf, DO

Internal Medicine5 years in practice

Mercy Clinic East Communities

300 Winding Woods Dr, O Fallon, MO 63366

Accepts Medicare assignment At Still University Of Health Sciences, College Of Osteo Med, Kirksville

Hospital affiliations

NPI 1922678531

Rachel L. Duncan, MD

Internal Medicine9 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment Texas A & M University System, Hsc, College Of Medicine

Hospital affiliations

NPI 1639601628

John Ellena

Internal Medicine43 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment Southern Illinois University School Of Medicine

Hospital affiliations

NPI 1487767240

Judit A. Farkas, MD

Internal Medicine14 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment

Hospital affiliations

NPI 1912327339

Shangnon Fei, MD

Internal Medicine5 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment Telehealth University Of Southern California Keck School Of Medicine

Hospital affiliations

NPI 1033787759

Daniel K. Fox, MD

Internal Medicine10 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment

Hospital affiliations

NPI 1215387626

Matthew L. Gerling, DO

Internal Medicine9 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment At Still University Of Health Sciences, College Of Osteo Med, Kirksville

Hospital affiliations

Missouri Baptist Medical Center

NPI 1407387376

Daniel M. Goodenberger, MD

Internal Medicine52 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment Duke University School Of Medicine

Hospital affiliations

Missouri Baptist Medical Center

NPI 1659397883

Gary D. Gray, MD

Internal Medicine27 years in practice

Internal Medicine At Winghaven, Llc

5551 Winghaven Blvd, Suite 290, O Fallon, MO 63368

(636) 695-2575

Accepts Medicare assignment Saint Louis University School Of Medicine

Hospital affiliations

NPI 1497729826

John D. Griffin, MD

Internal Medicine19 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment

Hospital affiliations

NPI 1275731143

Brian A. Grus, MD

Internal Medicine34 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment Telehealth Perelman School Of Med At The University Of Pennsylvania

Hospital affiliations

NPI 1053421065

Roger Guillemette, MD

Internal Medicine34 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment Geisel School Of Medicine At Dartmouth

Hospital affiliations

NPI 1417981333

John L. Hoffman, MD

Internal Medicine27 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment Washington University School Of Medicine

Hospital affiliations

NPI 1871604520

Neal W. Holzum, MD

Internal Medicine30 years in practice

2 Progress Point Ct, 101A, O Fallon, MO 63368

(636) 344-1500

Accepts Medicare assignment University Of Missouri, Kansas City, School Of Medicine

Hospital affiliations

NPI 1326011271

Carolyn M. Jachna, MD

Internal Medicine28 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment Telehealth Northwestern University Feinberg Medical School

Hospital affiliations

NPI 1558378216

Gayla E. Jackson, MD

Internal Medicine17 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment University Of Kansas School Of Med (Kc/Wich/Sal)

Hospital affiliations

Christian Hospital Northeast

NPI 1184852592

Vinay Kamat, MD

Internal Medicine32 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment Drexel University College Of Medicine

Hospital affiliations

NPI 1760522916

Michelle Kane, MD

Internal Medicine37 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment Telehealth Saint Louis University School Of Medicine

Hospital affiliations

NPI 1659480689

James Ketchum, MD

Internal Medicine44 years in practice

Mercy Clinic East Communities

300 Winding Woods Dr, O Fallon, MO 63366

Accepts Medicare assignment Telehealth Southern Illinois University School Of Medicine

Hospital affiliations

NPI 1386610376

Mehreen B. Khann, MD

Internal Medicine32 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment

Hospital affiliations

NPI 1942292420

Howard D. Kohn, MD

Internal Medicine40 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment Telehealth University Of Louisville School Of Medicine

Hospital affiliations

NPI 1053496745

Paul Lecuyer, MD

Internal Medicine37 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

May accept Medicare assignment Telehealth University Of Missouri, Columbia School Of Medicine

Hospital affiliations

NPI 1427161298

Charles Lieu, MD

Internal Medicine33 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment Telehealth State University Of New York At Buffalo School Of Medicine

Hospital affiliations

NPI 1871510396

Lauren M. Ludwig, MD

Internal Medicine18 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment University Of Missouri, Kansas City, School Of Medicine

Hospital affiliations

Missouri Baptist Medical Center

NPI 1073775052

Jei F. Martin, MD

Internal Medicine30 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment Telehealth Meharry Medical College School Of Medicine

Hospital affiliations

Christian Hospital Northeast

NPI 1033104047

John S. Mays, MD

Internal Medicine8 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment Telehealth University Of Tennessee, Hsc, College Of Medicine

Hospital affiliations

NPI 1083108062

Matthew W. Meier, DO

Internal Medicine38 years in practice

1002 Peruque Crossing Ct, Suite 102, O Fallon, MO 63366

(636) 294-5757

Accepts Medicare assignment

Hospital affiliations

NPI 1578574372

Rebecca E. Melvin, DO

Internal Medicine21 years in practice

Tri-County Family Practice, Llc

5551 Winghaven Blvd, Suite 142, O Fallon, MO 63368

(636) 695-2510

Accepts Medicare assignment

Hospital affiliations

NPI 1609079409

Thishara Merza, MD

Internal Medicine21 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment

Hospital affiliations

NPI 1073773347

Barry M. Mossman, MD

Internal Medicine21 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment Telehealth Saint Louis University School Of Medicine

Hospital affiliations

NPI 1053516294

Rama G. Naidu, MD

Internal Medicine29 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment

Hospital affiliations

NPI 1114978483

Matthew A. Nations, DO

Internal Medicine8 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment At Still University Of Health Sciences, College Of Osteo Med, Kirksville

Hospital affiliations

NPI 1073017638

Tracy W. Norfleet, MD

Internal Medicine24 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment Telehealth Louisiana State University School Of Medicine In New Orleans

Hospital affiliations

NPI 1487680377

Robert J. Paino, MD

Internal Medicine45 years in practice

Emergency Physicians Of St Lukes Llc

5551 Winghaven Blvd, 100 Winghaven Uc Center, O Fallon, MO 63368

(636) 695-2500

Accepts Medicare assignment Saint Louis University School Of Medicine

Hospital affiliations

St Lukes Hospital

NPI 1376590497

Rahul S. Phatak, MD

Internal Medicine20 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment

Hospital affiliations

NPI 1124086038

Rawan Rajab, MD

Internal Medicine5 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment University Of Missouri, Kansas City, School Of Medicine

Hospital affiliations

NPI 1194303131

Ahmad O. Rez, MD

Internal Medicine23 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment

Hospital affiliations

NPI 1356537179

Desirai A. Rogan, MD

Internal Medicine11 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment University Of Florida College Of Medicine

Hospital affiliations

NPI 1982085759

Rebecca Rugen, MD

Internal Medicine36 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment University Of Connecticut School Of Medicine

Hospital affiliations

NPI 1023129954

Farhat Shereen, MD

Internal Medicine37 years in practice

20 Progress Point Pkwy, Suite 106, O Fallon, MO 63368

(636) 625-8300

Accepts Medicare assignment Telehealth

Hospital affiliations

NPI 1255583407

Aaron O. Silverstein, MD

Internal Medicine5 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

May accept Medicare assignment Washington University School Of Medicine

Hospital affiliations

NPI 1316523418

Alan W. Steube, DO

Internal Medicine5 years in practice

Mercy Clinic East Communities

2223 Technology Dr, Suite 40, O Fallon, MO 63368

(636) 755-4400

Accepts Medicare assignment Telehealth

Hospital affiliations

St John's Mercy Medical Center

NPI 1740857457

Jamie L. Tueth, DO

Internal Medicine21 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment Telehealth Kansas City University Of Physicians And Surgeons

Hospital affiliations

NPI 1619100989

Kevin D. Weikart, MD

Internal Medicine42 years in practice

1002 Peruque Crossing Ct, O Fallon, MO 63366

(636) 887-0812

Accepts Medicare assignment

Hospital affiliations

NPI 1902864986

Emily M. Wood, DO

Internal Medicine16 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment

Hospital affiliations

NPI 1265743025

Seow Voon Yew, MD

Internal Medicine23 years in practice

Physician Groups Lc

2630 Hwy K, O Fallon, MO 63368

(636) 240-5454

Accepts Medicare assignment

Hospital affiliations

Missouri Baptist Medical Center

NPI 1942518675

Kevin T. Yin, MD

Internal Medicine4 years in practice

Mercy Clinic East Communities

2223 Technology Dr, Suite 40, O Fallon, MO 63368

(636) 755-4400

Accepts Medicare assignment Saint Louis University School Of Medicine

Hospital affiliations

St John's Mercy Medical Center

NPI 1689311011

Internal medicine doctors in O Fallon, MO

Hospitals they work with

Largest practices

Every internal medicine doctor in O Fallon

Leen H. Al-Sayyed, MD

Charmaine Ansari, MD

Nabeel A. Badar

Anna E. Bailey, MD

Leigh R. Ball

William D. Birenbaum, MD

Daniela Blum Morales, MD

David J. Brown, MD

Kent Alexander N. Cassmeyer, MD

Lilibeth M. Cayabyab Loe, MD

Farah A. Chohan

Stephen Cohen, MD

Kevin P. Dehaan, MD

Meggan C. Dempewolf, DO

Rachel L. Duncan, MD

John Ellena

Judit A. Farkas, MD

Shangnon Fei, MD

Daniel K. Fox, MD

Matthew L. Gerling, DO

Daniel M. Goodenberger, MD

Gary D. Gray, MD

John D. Griffin, MD

Brian A. Grus, MD

Roger Guillemette, MD

John L. Hoffman, MD

Neal W. Holzum, MD

Carolyn M. Jachna, MD

Gayla E. Jackson, MD

Vinay Kamat, MD

Michelle Kane, MD

James Ketchum, MD

Mehreen B. Khann, MD

Howard D. Kohn, MD

Paul Lecuyer, MD

Charles Lieu, MD

Lauren M. Ludwig, MD

Jei F. Martin, MD

John S. Mays, MD

Matthew W. Meier, DO

Rebecca E. Melvin, DO

Thishara Merza, MD

Barry M. Mossman, MD

Rama G. Naidu, MD

Matthew A. Nations, DO

Tracy W. Norfleet, MD

Robert J. Paino, MD

Rahul S. Phatak, MD

Rawan Rajab, MD

Ahmad O. Rez, MD

Desirai A. Rogan, MD

Rebecca Rugen, MD

Farhat Shereen, MD

Aaron O. Silverstein, MD

Alan W. Steube, DO

Jamie L. Tueth, DO

Kevin D. Weikart, MD

Emily M. Wood, DO

Seow Voon Yew, MD

Kevin T. Yin, MD

Other doctors in O Fallon

Internal medicine doctors elsewhere in Missouri

Questions about internal medicine doctors in O Fallon