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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: 1043317704
VIRTUAL ACTIVE

Lavanya Chadalavada

Internal Medicine

CREDENTIALS VERIFIED 2026
Los Angeles, CA
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1043317340
VIRTUAL ACTIVE

Varalakshmi Niranjan, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Stanford, CA
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1043316656
VIRTUAL ACTIVE

Nanda Biswas, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Victorville, CA
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1043315740
VIRTUAL ACTIVE

Eliza Gaenger Bennitt, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Menlo Park, CA
Stanford University School of Medicine (2003)
20+ Years Exp.
ACCESS PROFILE
NPI: 1043315153
VIRTUAL ACTIVE

Rabi Ranjan Sinha, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Hopewell Junction, NY
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1043313968
VIRTUAL ACTIVE

Stephen C Waller, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Kansas City, KS
UNIVERSITY OF MISSOURI, COLUMBIA SCHOOL OF MEDICINE (1998)
20+ Years Exp.
ACCESS PROFILE
NPI: 1043313356
VIRTUAL ACTIVE

Jonathan B Zuckerman, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
South Portland, ME
WARREN ALPERT MEDICAL SCHOOL OF BROWN UNIVERSITY (1987)
20+ Years Exp.
ACCESS PROFILE
NPI: 1043312853
VIRTUAL ACTIVE

Reinaldo Rosario, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Fort Lauderdale, FL
UNIVERSITY CENTRAL DEL CARIBE ESCUELA DE MEDICINA (2001)
20+ Years Exp.
ACCESS PROFILE
NPI: 1043312465
VIRTUAL ACTIVE

David M Rind, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Boston, MA
UNIVERSITY OF ROCHESTER SCHOOL OF MEDICINE AND DENTISTRY (1986)
20+ Years Exp.
ACCESS PROFILE
NPI: 1043311699
VIRTUAL ACTIVE

Nadarajah Nirmalan, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
St Petersburg, FL
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1043310881
VIRTUAL ACTIVE

Gardar Sigurdsson, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Des Moines, IA
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1043310352
VIRTUAL ACTIVE

Sonali P. Birewar, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Austin, TX
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1043309933
VIRTUAL ACTIVE

SHAHEEN K MOHAMMED, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
FLINT, MI
MICHIGAN STATE UNIVERSITY COLLEGE OF HUMAN MEDICINE (1998)
20+ Years Exp.
ACCESS PROFILE
NPI: 1043309453
VIRTUAL ACTIVE

Amy K Lau, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Bronx, NY
University of Miami Miller School of Medicine (2001)
20+ Years Exp.
ACCESS PROFILE
NPI: 1043309354
VIRTUAL ACTIVE

Suzy Nassralla, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Aptos, CA
Saint Louis University School of Medicine (1992)
20+ Years Exp.
ACCESS PROFILE
NPI: 1043308695
VIRTUAL ACTIVE

Jeffrey Neal Elfenbein, D.O.

Internal Medicine

CREDENTIALS VERIFIED 2026
Seaford, NY
Philadelphia College of Osteopathic Medicine (1990)
20+ Years Exp.
ACCESS PROFILE
NPI: 1043306558
VIRTUAL ACTIVE

Harry T Anastopoulos, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Boston, MA
Boston University Chobanian & Avedisian School of Medicine (1983)
20+ Years Exp.
ACCESS PROFILE
NPI: 1043306343
VIRTUAL ACTIVE

Gretchen Perilli, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Allentown, PA
Sidney Kimmel Medical College at Thomas Jefferson University (2001)
20+ Years Exp.
ACCESS PROFILE
NPI: 1043305493
VIRTUAL ACTIVE

Kristin Gail Fless, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Livingston, NJ
Rutgers New Jersey Medical School (1995)
20+ Years Exp.
ACCESS PROFILE
NPI: 1043304462
VIRTUAL ACTIVE

John Robert Allen, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Bend, OR
OFFICIAL REGISTRY DATA
20+ 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