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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: 1881602910
VIRTUAL ACTIVE

Michael C Kerkering, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Spokane, WA
University of Washington School of Medicine (1994)
20+ Years Exp.
ACCESS PROFILE
NPI: 1881602902
VIRTUAL ACTIVE

Calvin Y.H. Wong, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Honolulu, HI
JS WEILL MEDICAL COLLEGE, CORNELL UNIVERSITY (1974)
20+ Years Exp.
ACCESS PROFILE
NPI: 1881602670
VIRTUAL ACTIVE

Mark Lawrence Wieland, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Rochester, MN
Loyola University Chicago Stritch School of Medicine (2004)
20+ Years Exp.
ACCESS PROFILE
NPI: 1881602621
VIRTUAL ACTIVE

Vijayrama Reddy Poreddy, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Round Rock, TX
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1881602308
VIRTUAL ACTIVE

Gabrielle Meyers, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Portland, OR
UNIVERSITY OF CHICAGO, PRITZKER SCHOOL OF MEDICINE (1998)
20+ Years Exp.
ACCESS PROFILE
NPI: 1881602209
VIRTUAL ACTIVE

Spero R. Cataland, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Columbus, OH
Ohio State University College of Medicine (1994)
20+ Years Exp.
ACCESS PROFILE
NPI: 1881602027
VIRTUAL ACTIVE

Patricia C Rizzo, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Fairfax, VA
Georgetown University School of Medicine (1990)
20+ Years Exp.
ACCESS PROFILE
NPI: 1881601714
VIRTUAL ACTIVE

Elyssa Blissenbach, MD PA

Internal Medicine

CREDENTIALS VERIFIED 2026
Jacksonville, FL
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1881601359
VIRTUAL ACTIVE

J. Paul Monk, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Columbus, OH
Ohio State University College of Medicine (1996)
20+ Years Exp.
ACCESS PROFILE
NPI: 1881600229
VIRTUAL ACTIVE

William C Aird, M.D.

Internal Medicine

CREDENTIALS VERIFIED 2026
Boston, MA
OFFICIAL REGISTRY DATA
20+ Years Exp.
ACCESS PROFILE
NPI: 1881475846
VIRTUAL ACTIVE

Catherine Lippert

Internal Medicine

CREDENTIALS VERIFIED 2026
Pleasant Hills, PA
OFFICIAL REGISTRY DATA
3+ Years Exp.
ACCESS PROFILE
NPI: 1881447183
VIRTUAL ACTIVE

Xinyu Ji, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Los Angeles, CA
OFFICIAL REGISTRY DATA
2+ Years Exp.
ACCESS PROFILE
NPI: 1881343069
VIRTUAL ACTIVE

Caroline Grace Olson, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Jacksonville, FL
UNIVERSITY OF MISSOURI, KANSAS CITY, SCHOOL OF MEDICINE (2022)
4+ Years Exp.
ACCESS PROFILE
NPI: 1881275857
VIRTUAL ACTIVE

Peter Makar, DO

Internal Medicine

CREDENTIALS VERIFIED 2026
Hinsdale, IL
A.T. Still University Kirksville College of Osteopathic Medicine (2021)
5+ Years Exp.
ACCESS PROFILE
NPI: 1881272334
VIRTUAL ACTIVE

Ray Chester Ambida, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Forest Hills, NY
OFFICIAL REGISTRY DATA
5+ Years Exp.
ACCESS PROFILE
NPI: 1881271260
VIRTUAL ACTIVE

Claire C Greene, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
San Francisco, CA
University of California, San Francisco School of Medicine (2021)
5+ Years Exp.
ACCESS PROFILE
NPI: 1881269835
VIRTUAL ACTIVE

Allison Leigh-Smith Rupp, DO

Internal Medicine

CREDENTIALS VERIFIED 2026
Valdosta, GA
Lake Erie College of Osteopathic Medicine (2021)
5+ Years Exp.
ACCESS PROFILE
NPI: 1881268829
VIRTUAL ACTIVE

Ronen Schneider, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Boston, MA
OFFICIAL REGISTRY DATA
5+ Years Exp.
ACCESS PROFILE
NPI: 1881263275
VIRTUAL ACTIVE

Reese K. Suzuki, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
Honolulu, HI
OFFICIAL REGISTRY DATA
5+ Years Exp.
ACCESS PROFILE
NPI: 1881256832
VIRTUAL ACTIVE

SREEDEVI PALLATH HARSHAKUMAR, MD

Internal Medicine

CREDENTIALS VERIFIED 2026
SHEPHERDSVILLE, KY
OTHER (2013)
7+ 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