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© 2026 NPI Telehealth

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CMS Source

Informational purposes only — not medical advice. Always consult a professional. Data updated weekly. Read full disclaimer.

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Online Internal Medicine Doctors | Telehealth & Virtual Visits | NPI Telehealth | NPI Telehealth
SPECIALTY DISCOVERY ACTIVE 2026

Internal Medicine.

Find and book verified Internal Medicine specialists. Access NPI credentials, office locations, and virtual care availability.

VERIFIED SPECIALISTS

Active medical practitioners in Internal Medicine clinical focus.

62,216 ENTRIES FOUND
NPI: 1255351896
VIRTUAL ACTIVE

MAHBOOB RAHMAN, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
CLEVELAND, OH
OTHER (1990)
20+ Years Exp.
ACCESS PROFILE
NPI: 1255351854
VIRTUAL ACTIVE

Rajan Saggar, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Los Angeles, CA
Medical College of Wisconsin (1999)
20+ Years Exp.
ACCESS PROFILE
NPI: 1255351821
VIRTUAL ACTIVE

Nora G. Singer, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Cleveland, OH
Albany Medical College (1987)
20+ Years Exp.
ACCESS PROFILE
NPI: 1255351573
VIRTUAL ACTIVE

Bernard T Mcnamara, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Glendale, CA
UMass Chan Medical School (1977)
20+ Years Exp.
ACCESS PROFILE
NPI: 1255349833
VIRTUAL ACTIVE

Catherine F Welsh, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Miami, FL
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1255348785
VIRTUAL ACTIVE

Kevin V Hackshaw, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Austin, TX
Baylor College of Medicine (1983)
20+ Years Exp.
ACCESS PROFILE
NPI: 1255347811
VIRTUAL ACTIVE

Prith M Goomar, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Chicago, IL
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1255347597
VIRTUAL ACTIVE

Svetlana Shkuratov, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Braintree, MA
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1255347514
VIRTUAL ACTIVE

Howard R Marcus, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Austin, TX
Tufts University School of Medicine (1971)
20+ Years Exp.
ACCESS PROFILE
NPI: 1255346797
VIRTUAL ACTIVE

Reza Govashiri, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Laguna Hills, CA
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1255346623
VIRTUAL ACTIVE

Masha Matvey Nakelchik, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
San Jose, CA
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1255345112
VIRTUAL ACTIVE

Roopinder S Poonia, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Carmichael, CA
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1255345096
VIRTUAL ACTIVE

Christopher Mullany Mcmackin, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Washington, DC
MEDICAL COLLEGE OF PENNSYLVANIA (1984)
20+ Years Exp.
ACCESS PROFILE
NPI: 1255344537
VIRTUAL ACTIVE

Huseyin Erhan Dincer, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Minneapolis, MN
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1255343521
VIRTUAL ACTIVE

Marlon B. Kleinman, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Morton Grove, IL
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1255343133
VIRTUAL ACTIVE

Alfred R. Johnson, D.O.

Internal Medicine

CREDENTIALS VERIFIED 2026
Richardson, TX
KANSAS CITY UNIVERSITY OF MED & BIOSCIENCES, COLLEGE OF OSTEO MED (1974)
20+ Years Exp.
ACCESS PROFILE
NPI: 1255342325
VIRTUAL ACTIVE

Andrea Nissenbaum

Internal Medicine

CREDENTIALS VERIFIED 2026
Brooklyn, NY
SUNY Downstate Health Sciences University (1980)
20+ Years Exp.
ACCESS PROFILE
NPI: 1255340691
VIRTUAL ACTIVE

Jeremy Scott Wittenborn, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Indianapolis, IN
SOUTHERN ILLINOIS UNIVERSITY SCHOOL OF MEDICINE (2003)
20+ Years Exp.
ACCESS PROFILE
NPI: 1255340345
VIRTUAL ACTIVE

Lukose Simon Vadakara, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Hamilton, NJ
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1255339792
VIRTUAL ACTIVE

Daniel Berman, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Morton Grove, IL
Rush Medical College (2002)
21+ Years Exp.
ACCESS PROFILE
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Why Choose a Verified Internal Medicine Specialist?

Selecting a Internal Medicine is a personal decision that impacts your long-term health. Whether you are seeking treatment for a specific condition or looking for a second opinion, we provide access to a verified list of practicing specialists.

We recommend reviewing clinical background, years of practice, and verified patient experiences before scheduling your visit. Many Internal Medicines now offer telehealth services, allowing you to receive expert medical advice from the comfort of your home.

Institutional Data Integrity

Every provider on NPI Telehealth is verified against the National Plan and Provider Enumeration System (NPPES). We ensure that you connect with licensed, active professionals who meet federal clinical standards.

100% VERIFIED CREDENTIALS
REAL-TIME REGISTRY UPDATES