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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: 1093814303
VIRTUAL ACTIVE

Christa Rigel Mccann, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Greenville, SC
University of Miami Miller School of Medicine (2003)
20+ Years Exp.
ACCESS PROFILE
NPI: 1093814063
VIRTUAL ACTIVE

Neil Coskun, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Orlando, FL
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1093813990
VIRTUAL ACTIVE

Sanjeev Madanlal Wasan, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Lansdowne, VA
UT Health San Antonio Joe R. and Teresa Lozano Long School of Medicine (1999)
20+ Years Exp.
ACCESS PROFILE
NPI: 1093812828
VIRTUAL ACTIVE

Erin L Malone, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Burlington, MA
Michigan State University College of Human Medicine (1987)
20+ Years Exp.
ACCESS PROFILE
NPI: 1093811879
VIRTUAL ACTIVE

Scott L Massien, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Beachwood, OH
Case Western Reserve University School of Medicine (2001)
20+ Years Exp.
ACCESS PROFILE
NPI: 1093811374
VIRTUAL ACTIVE

Tanveer Ahmad, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Marengo, IL
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1093810780
VIRTUAL ACTIVE

Glenn A Pfaff, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Orlando, FL
UNIVERSITY OF SOUTH FLORIDA COLLEGE OF MEDICINE (1979)
20+ Years Exp.
ACCESS PROFILE
NPI: 1093810368
VIRTUAL ACTIVE

Joseph V Costanzo, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Stamford, CT
Harvard Medical School (1987)
20+ Years Exp.
ACCESS PROFILE
NPI: 1093809790
VIRTUAL ACTIVE

Bruce John Kimura, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
San Diego, CA
UNIVERSITY OF CALIFORNIA, SAN DIEGO SCHOOL OF MEDICINE (1989)
20+ Years Exp.
ACCESS PROFILE
NPI: 1093809394
VIRTUAL ACTIVE

Katherine A Sakmar, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Revere, MA
UNIVERSITY OF CHICAGO, PRITZKER SCHOOL OF MEDICINE (1984)
20+ Years Exp.
ACCESS PROFILE
NPI: 1093808123
VIRTUAL ACTIVE

Scott Burg, DO

Internal Medicine

CREDENTIALS VERIFIED 2026
Mayfield Hts, OH
Philadelphia College of Osteopathic Medicine (1977)
20+ Years Exp.
ACCESS PROFILE
NPI: 1093807752
VIRTUAL ACTIVE

David Mandelblum, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
West Palm Beach, FL
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1093807323
VIRTUAL ACTIVE

Steven F. Nezhad, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Peabody, MA
UNIVERSITY OF CONNECTICUT SCHOOL OF MEDICINE (1997)
20+ Years Exp.
ACCESS PROFILE
NPI: 1093805947
VIRTUAL ACTIVE

Derek Lynn Stirewalt, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Seattle, WA
University of North Carolina School of Medicine (1992)
20+ Years Exp.
ACCESS PROFILE
NPI: 1093805897
VIRTUAL ACTIVE

William J Sullivan, D.O.

Internal Medicine

CREDENTIALS VERIFIED 2026
Frontenac, KS
KANSAS CITY UNIVERSITY OF MED & BIOSCIENCES, COLLEGE OF OSTEO MED (1990)
20+ Years Exp.
ACCESS PROFILE
NPI: 1093805681
VIRTUAL ACTIVE

James Joseph Chamberlain, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Salt Lake City, UT
Vanderbilt University School of Medicine (1995)
20+ Years Exp.
ACCESS PROFILE
NPI: 1093805319
VIRTUAL ACTIVE

Karri Ann Huber, D.O.

Internal Medicine

CREDENTIALS VERIFIED 2026
Oak Creek, WI
KANSAS CITY COLLEGE OF MEDICINE AND SURGERY (2006)
20+ Years Exp.
ACCESS PROFILE
NPI: 1093804239
VIRTUAL ACTIVE

Sylvia Renee Medley, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Washington, DC
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1093803991
VIRTUAL ACTIVE

Selvi Thirumurthi, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Houston, TX
UNIVERSITY OF SOUTH FLORIDA COLLEGE OF MEDICINE (2000)
20+ Years Exp.
ACCESS PROFILE
NPI: 1093803884
VIRTUAL ACTIVE

Elhami N Hannan, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Richland, WA
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