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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: 1689802746
VIRTUAL ACTIVE

Jeffrey Costanzo, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
East Stroudsburg, PA
OFFICIAL REGISTRY DATA
17+ Years Exp.
ACCESS PROFILE
NPI: 1689802381
VIRTUAL ACTIVE

Muhammad Salam, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Kansas City, MO
OFFICIAL REGISTRY DATA
17+ Years Exp.
ACCESS PROFILE
NPI: 1689802001
VIRTUAL ACTIVE

Brian August Reichardt, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
O Fallon, IL
OFFICIAL REGISTRY DATA
17+ Years Exp.
ACCESS PROFILE
NPI: 1689801821
VIRTUAL ACTIVE

Diana L Hanna, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Newport Beach, CA
UNIVERSITY OF CALIFORNIA, DAVIS SCHOOL OF MEDICINE (2009)
17+ Years Exp.
ACCESS PROFILE
NPI: 1689801722
VIRTUAL ACTIVE

Sonya Heitmann, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Sacramento, CA
UNIVERSITY OF CALIFORNIA, IRVINE, CALIFORNIA COLLEGE OF MEDICINE (2009)
17+ Years Exp.
ACCESS PROFILE
NPI: 1689796096
VIRTUAL ACTIVE

Julie R Chan, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Worcester, MA
Tufts University School of Medicine (2002)
19+ Years Exp.
ACCESS PROFILE
NPI: 1689795833
VIRTUAL ACTIVE

Deepti Kumar, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Worcester, MA
OFFICIAL REGISTRY DATA
19+ Years Exp.
ACCESS PROFILE
NPI: 1689792756
VIRTUAL ACTIVE

Gopakumar Vasydeva Iyer, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
New York, NY
Vanderbilt University School of Medicine (2003)
19+ Years Exp.
ACCESS PROFILE
NPI: 1689792327
VIRTUAL ACTIVE

Christopher Paul Porterfield, MD FACC

Internal Medicine

CREDENTIALS VERIFIED 2026
Aurora, CO
OFFICIAL REGISTRY DATA
19+ Years Exp.
ACCESS PROFILE
NPI: 1689791949
VIRTUAL ACTIVE

Shaili Khandheria Felton, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Lubbock, TX
Texas Tech University Health Sciences Center School of Medicine (2003)
19+ Years Exp.
ACCESS PROFILE
NPI: 1689790008
VIRTUAL ACTIVE

Lynda Roden, DOSC

Internal Medicine

CREDENTIALS VERIFIED 2026
Libertyville, IL
Des Moines University (1995)
19+ Years Exp.
ACCESS PROFILE
NPI: 1689788234
VIRTUAL ACTIVE

Mehran Moussavian, DO

Internal Medicine

CREDENTIALS VERIFIED 2026
Chula Vista, CA
New York Institute of Technology College of Osteopathic Medicine (1994)
20+ Years Exp.
ACCESS PROFILE
NPI: 1689786907
VIRTUAL ACTIVE

Hemal Amin, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Rancho Cordova, CA
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1689786675
VIRTUAL ACTIVE

May Yen Yau, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
San Francisco, CA
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1689786212
VIRTUAL ACTIVE

Richard Joseph Cambareri, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Shelby, NC
George Washington University School of Medicine and Health Sciences (1975)
20+ Years Exp.
ACCESS PROFILE
NPI: 1689786139
VIRTUAL ACTIVE

Samarjit Singh, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Fountain Valley, CA
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1689785925
VIRTUAL ACTIVE

Paul W Johnson, D.O.

Internal Medicine

CREDENTIALS VERIFIED 2026
Portland, OR
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1689785883
VIRTUAL ACTIVE

Ralph S Blume, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
New York, NY
UNIVERSITY OF MISSOURI, COLUMBIA SCHOOL OF MEDICINE (1964)
20+ Years Exp.
ACCESS PROFILE
NPI: 1689785545
VIRTUAL ACTIVE

Jayalakshmi Udayasankar, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Mountain View, CA
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1689784712
VIRTUAL ACTIVE

Marina Vaysburd, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Beverly Hills, CA
Stanford University School of Medicine (1996)
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