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© 2026 NPI Telehealth

US Registry Operational
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: 1447218193
VIRTUAL ACTIVE

KAREN H. GALICHON, M.D.,

Internal Medicine

CREDENTIALS VERIFIED 2026
NEW YORK, NY
UNIVERSITY OF ARIZONA COLLEGE OF MEDICINE (1995)
20+ Years Exp.
ACCESS PROFILE
NPI: 1447217740
VIRTUAL ACTIVE

James C Fang

Internal Medicine

CREDENTIALS VERIFIED 2026
Salt Lake City, UT
Duke University School of Medicine (1988)
20+ Years Exp.
ACCESS PROFILE
NPI: 1447217393
VIRTUAL ACTIVE

HARINIDEVI KRISHNAN, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
CAMP HILL, PA
OTHER (1992)
20+ Years Exp.
ACCESS PROFILE
NPI: 1447217229
VIRTUAL ACTIVE

Julia H Hayes, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Boston, MA
Harvard Medical School (2001)
20+ Years Exp.
ACCESS PROFILE
NPI: 1447216825
VIRTUAL ACTIVE

Karen H Costenbader, MD MPH

Internal Medicine

CREDENTIALS VERIFIED 2026
Boston, MA
Harvard Medical School (1995)
20+ Years Exp.
ACCESS PROFILE
NPI: 1447216734
VIRTUAL ACTIVE

Edward Paul Smith, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Winchester, VA
Georgetown University School of Medicine (1990)
20+ Years Exp.
ACCESS PROFILE
NPI: 1447216494
VIRTUAL ACTIVE

Joel Laxer, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Roslyn Hgts, NY
NYU Grossman School of Medicine (1982)
20+ Years Exp.
ACCESS PROFILE
NPI: 1447215611
VIRTUAL ACTIVE

Arif Goreja, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
South Bend, IN
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1447215009
VIRTUAL ACTIVE

Liliana Rosselli Risal, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Jamaica Plain, MA
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1447214978
VIRTUAL ACTIVE

George Richard Zimmerman, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Pittsburgh, PA
HAHNEMANN UNIVERSITY COLLEGE OF MEDICINE (1993)
20+ Years Exp.
ACCESS PROFILE
NPI: 1447214911
VIRTUAL ACTIVE

Tarek M Mekhail, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Orlando, FL
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1447214507
VIRTUAL ACTIVE

Raymond Keith Cross, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Baltimore, MD
University of Pittsburgh School of Medicine (1997)
20+ Years Exp.
ACCESS PROFILE
NPI: 1447214192
VIRTUAL ACTIVE

LUIS DIAZ-MAISONET, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
HATO REY, PR
OTHER (1976)
20+ Years Exp.
ACCESS PROFILE
NPI: 1447214168
VIRTUAL ACTIVE

Harish L Sadhwani, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Sebastian, FL
CHICAGO COLLEGE OF MEDICINE AND SURGERY (1982)
20+ Years Exp.
ACCESS PROFILE
NPI: 1447214150
VIRTUAL ACTIVE

Stephen Mark Minton, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Alexandria, VA
University of Virginia School of Medicine (1988)
20+ Years Exp.
ACCESS PROFILE
NPI: 1447213285
VIRTUAL ACTIVE

Nabil Zaki, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Flint, MI
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1447212758
VIRTUAL ACTIVE

Bruce Horowitz

Internal Medicine

CREDENTIALS VERIFIED 2026
Albuquerque, NM
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1447212154
VIRTUAL ACTIVE

August G Salvatore, MD PHD

Internal Medicine

CREDENTIALS VERIFIED 2026
Warren, NJ
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1447211859
VIRTUAL ACTIVE

Harold H Katz, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Saint Paul, MN
Mayo Clinic Alix School of Medicine (1986)
20+ Years Exp.
ACCESS PROFILE
NPI: 1447210711
VIRTUAL ACTIVE

Robert Mark Fitz, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Union, KY
University of Kentucky College of Medicine (1993)
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