Skip to main content
NPITelehealth
SpecialtiesLocationsJournalAbout
ProvidersRegistry Search
CMS Data Source
NPI Registry Data
Expert Editorial
NPITelehealth

Finding a doctor shouldn't be a guessing game. We connect patients with verified healthcare professionals using official federal data.

Explore

  • Search
  • Specialties
  • Locations
  • Guides

Resources

  • Methodology
  • Editorial
  • For Providers
  • Sitemap

Legal

  • About
  • Contact
  • Privacy
  • Terms

© 2026 NPI Telehealth

US Registry Operational
CMS Source

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

PrivacyTermsEditorialDisclaimer
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: 1598797938
VIRTUAL ACTIVE

Edward Long, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Lawrenceburg, IN
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1598797219
VIRTUAL ACTIVE

Thomas J Harrington, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Miami, FL
University of Miami Miller School of Medicine (1985)
20+ Years Exp.
ACCESS PROFILE
NPI: 1598797029
VIRTUAL ACTIVE

April S Tignor, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Columbia, MD
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1598795411
VIRTUAL ACTIVE

Mariam Z Maniya, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Hamilton, NJ
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1598795403
VIRTUAL ACTIVE

Ron D Ah Loy, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Kamuela, HI
UNIVERSITY OF HAWAII JOHN A. BURNS SCHOOL OF MEDICINE (1978)
20+ Years Exp.
ACCESS PROFILE
NPI: 1598795098
VIRTUAL ACTIVE

Kathleen Marie Dungan, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Columbus, OH
Ohio State University College of Medicine (2001)
20+ Years Exp.
ACCESS PROFILE
NPI: 1598793903
VIRTUAL ACTIVE

James Flaherty, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Chicago, IL
Jacobs School of Medicine and Biomedical Sciences at SUNY Buffalo (1999)
20+ Years Exp.
ACCESS PROFILE
NPI: 1598792400
VIRTUAL ACTIVE

Sanjay Dixit, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Philadelphia, PA
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1598792277
VIRTUAL ACTIVE

WHITMAN LILLLEY REARDON, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
CHAPEL HILL, NC
UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL SCHOOL OF MEDICINE (1990)
20+ Years Exp.
ACCESS PROFILE
NPI: 1598792004
VIRTUAL ACTIVE

Gavin Cregg Little, D.O.

Internal Medicine

CREDENTIALS VERIFIED 2026
Stratham, NH
UNIVERSITY OF NEW ENGLAND, COLLEGE OF OSTEO MEDICINE (1996)
20+ Years Exp.
ACCESS PROFILE
NPI: 1598791097
VIRTUAL ACTIVE

Augusto T Hsia, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Cleveland, OH
Saint Louis University School of Medicine (1993)
20+ Years Exp.
ACCESS PROFILE
NPI: 1598790818
VIRTUAL ACTIVE

Mary Margaret Oneil, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Cheektowaga, NY
Saint Louis University School of Medicine (1990)
20+ Years Exp.
ACCESS PROFILE
NPI: 1598790602
VIRTUAL ACTIVE

Alex J Makalinao, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Las Vegas, NV
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1598789760
VIRTUAL ACTIVE

Isabelle M Vonalthen-Dagum, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
East Setauket, NY
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1598789463
VIRTUAL ACTIVE

Wali A Danesh, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Folsom, CA
EASTERN VIRGINIA MEDICAL SCHOOL (1994)
20+ Years Exp.
ACCESS PROFILE
NPI: 1598789018
VIRTUAL ACTIVE

William Frumkin, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
New York, NY
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1598787426
VIRTUAL ACTIVE

Latha S Radhakrishnan, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Portland, OR
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1598787186
VIRTUAL ACTIVE

Matthew B Sutton, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Overland Park, KS
UNIVERSITY OF MISSOURI, KANSAS CITY, SCHOOL OF MEDICINE (1992)
20+ Years Exp.
ACCESS PROFILE
NPI: 1598786857
VIRTUAL ACTIVE

Katherine A. Belden, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Philadelphia, PA
Sidney Kimmel Medical College at Thomas Jefferson University (1997)
20+ Years Exp.
ACCESS PROFILE
NPI: 1598786790
VIRTUAL ACTIVE

C. Michael Neuwelt, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
San Leandro, CA
George Washington University School of Medicine and Health Sciences (1975)
20+ Years Exp.
ACCESS PROFILE
  • Previous
  • 1
  • More pages
  • 1259
  • 1260
  • 1261
  • More pages
  • 3111
  • Next

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