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.

PrivacyTermsEditorial
Best Internal Doctors in Waltham, MA | NPI Telehealth
Home/Massachusetts/Waltham/Internal Doctors
LOCAL SPECIALTY PROTOCOL 2026

Internal Doctors
IN Waltham.

Find and book top-rated Internal Medicine specialists in Waltham, MA. Access NPI credentials sourced from federal records and virtual care availability.

SPECIALISTS

Active internal doctors in Waltham jurisdiction.

14 ENTRIES FOUND
NPI: 1871580597
VIRTUAL ACTIVE

ALICE ZACARIAN, M.D.

Internal Medicine

NPI DATA 2026
Waltham, MA
BOSTON UNIVERSITY SCHOOL OF MEDICINE (1996)
21+ Years Exp.
ACCESS PROFILE
NPI: 1821194879
VIRTUAL ACTIVE

DANIEL GAPOSCHKIN, M.D/PH.D.

Internal Medicine

NPI DATA 2026
Waltham, MA
BOSTON UNIVERSITY SCHOOL OF MEDICINE (2001)
20+ Years Exp.
ACCESS PROFILE
NPI: 1639157910
VIRTUAL ACTIVE

MONICA MANANDHAR, MD

Internal Medicine

NPI DATA 2026
Waltham, MA
COLUMBIA UNIVERSITY COLLEGE OF PHYSICIANS AND SURGEONS (1999)
20+ Years Exp.
ACCESS PROFILE
NPI: 1609070267
VIRTUAL ACTIVE

CHUANYUN GAO, MD

Internal Medicine

NPI DATA 2026
Waltham, MA
OTHER (1995)
19+ Years Exp.
ACCESS PROFILE
NPI: 1588763908
VIRTUAL ACTIVE

THOMAS FRY, MD

Internal Medicine

NPI DATA 2026
Waltham, MA
UNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL (2000)
20+ Years Exp.
ACCESS PROFILE
NPI: 1518958131
VIRTUAL ACTIVE

CHRISTINA GELEV, MD

Internal Medicine

NPI DATA 2026
Waltham, MA
CLVLND CLINIC LERNER COLLEGE OF MED OF CASE WSTN RSV UNIVERSITY (1986)
21+ Years Exp.
ACCESS PROFILE
NPI: 1518012251
VIRTUAL ACTIVE

AHMED MOHIUDDIN, M.D.

Internal Medicine

NPI DATA 2026
Waltham, MA
OTHER (1962)
19+ Years Exp.
ACCESS PROFILE
NPI: 1396936498
VIRTUAL ACTIVE

DEVASENA BALASUBRAMANIAM, M.D.

Internal Medicine

NPI DATA 2026
Waltham, MA
OTHER (1993)
19+ Years Exp.
ACCESS PROFILE
NPI: 1376923094
VIRTUAL ACTIVE

RACHEL ACKERMAN, MD

Internal Medicine

NPI DATA 2026
Waltham, MA
UNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL (2015)
11+ Years Exp.
ACCESS PROFILE
NPI: 1316112949
VIRTUAL ACTIVE

JOANNA SCHWARTZ, M.D.

Internal Medicine

NPI DATA 2026
Waltham, MA
OTHER (2008)
18+ Years Exp.
ACCESS PROFILE
NPI: 1235124249
VIRTUAL ACTIVE

HADIA TIRMIZI, M.D.

Internal Medicine

NPI DATA 2026
Waltham, MA
OTHER (1996)
21+ Years Exp.
ACCESS PROFILE
NPI: 1124091103
VIRTUAL ACTIVE

ALLISON MCDONOUGH, MD

Internal Medicine

NPI DATA 2026
Waltham, MA
HARVARD MEDICAL SCHOOL (1997)
20+ Years Exp.
ACCESS PROFILE
NPI: 1013962430
VIRTUAL ACTIVE

WISSAM KHOORY, M.D.

Internal Medicine

NPI DATA 2026
Waltham, MA
BOSTON UNIVERSITY SCHOOL OF MEDICINE (1995)
20+ Years Exp.
ACCESS PROFILE
NPI: 1003852526
VIRTUAL ACTIVE

NANCY GRACIN, M.D.

Internal Medicine

NPI DATA 2026
Waltham, MA
GEORGETOWN UNIVERSITY SCHOOL OF MEDICINE (1990)
20+ Years Exp.
ACCESS PROFILE

Local Discovery Protocol

Navigating healthcare in Waltham, MA requires finding the right expert. A highly qualified internal medicine is crucial for proper diagnosis and long-term care management.

  • NPI Credentials: Active NPI status and valid MA state licensing sourced from federal records.
  • Virtual Options: Encrypted telehealth consultations available for remote triage.
All Providers in MassachusettsNationwide Internal Medicines