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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: 1174561674
VIRTUAL ACTIVE

JOSEPH L YOZVIAK, D.O.

Internal Medicine

CREDENTIALS VERIFIED 2026
ALLENTOWN, PA
PHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE (2003)
20+ Years Exp.
ACCESS PROFILE
NPI: 1174561666
VIRTUAL ACTIVE

AMALINNETTE RODRIGUEZ ZITO, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
BOCA RATON, FL
TULANE UNIVERSITY SCHOOL OF MEDICINE (2001)
20+ Years Exp.
ACCESS PROFILE
NPI: 1174561542
VIRTUAL ACTIVE

Karthik M Ranganna, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Philadelphia, PA
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1174561484
VIRTUAL ACTIVE

Sihong Huang, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Boston, MA
Boston University Chobanian & Avedisian School of Medicine (2002)
20+ Years Exp.
ACCESS PROFILE
NPI: 1174560288
VIRTUAL ACTIVE

David J Kanarek, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Boston, MA
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1174560015
VIRTUAL ACTIVE

Snehal A. Damle, M.D

Internal Medicine

CREDENTIALS VERIFIED 2026
Suffolk, VA
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1174559868
VIRTUAL ACTIVE

Derek Michael Fine, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Baltimore, MD
Johns Hopkins University School of Medicine (1994)
20+ Years Exp.
ACCESS PROFILE
NPI: 1174559629
VIRTUAL ACTIVE

Thanuja Narendra, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Seattle, WA
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1174559512
VIRTUAL ACTIVE

Manmeet Mangat, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Midland, TX
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1174558126
VIRTUAL ACTIVE

Bruce Smith, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Baltimore, MD
MEDICAL COLLEGE OF PENNSYLVANIA (1991)
20+ Years Exp.
ACCESS PROFILE
NPI: 1174557649
VIRTUAL ACTIVE

Mark Christopher Deleon, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Santa Rosa Beach, FL
UNIFORMED SERVICES UHS FE HEBERT SCHOOL OF MED (1994)
20+ Years Exp.
ACCESS PROFILE
NPI: 1174557508
VIRTUAL ACTIVE

Julie C. Blockowicz, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
San Diego, CA
Loyola University Chicago Stritch School of Medicine (1998)
20+ Years Exp.
ACCESS PROFILE
NPI: 1174557243
VIRTUAL ACTIVE

Lisa P. Purdy, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Skokie, IL
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1174556492
VIRTUAL ACTIVE

Jia Bi, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Nashville, TN
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1174556096
VIRTUAL ACTIVE

Michael D Harrington, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Cleveland, OH
Ohio State University College of Medicine (1994)
20+ Years Exp.
ACCESS PROFILE
NPI: 1174555981
VIRTUAL ACTIVE

Andrew J. Gross, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
San Francisco, CA
Tufts University School of Medicine (1996)
20+ Years Exp.
ACCESS PROFILE
NPI: 1174555742
VIRTUAL ACTIVE

Mark A Greenberger, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Highland Park, IL
University of Illinois College of Medicine (1986)
20+ Years Exp.
ACCESS PROFILE
NPI: 1174555486
VIRTUAL ACTIVE

Yong Kang He

Internal Medicine

CREDENTIALS VERIFIED 2026
New York, NY
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1174555296
VIRTUAL ACTIVE

Aly M Zewail, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Akron, OH
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1174554893
VIRTUAL ACTIVE

Ira Louis Lazar, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Boca Raton, FL
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