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Best Internal Doctors in Lancaster, CA | NPI Telehealth
Home/California/Lancaster/Internal Doctors
LOCAL SPECIALTY PROTOCOL 2026

Internal Doctors
IN Lancaster.

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

SPECIALISTS

Active internal doctors in Lancaster jurisdiction.

21 ENTRIES FOUND
NPI: 1992972715
VIRTUAL ACTIVE

WILLIAM GO, M.D.

Internal Medicine

NPI DATA 2026
Lancaster, CA
OTHER (1991)
18+ Years Exp.
ACCESS PROFILE
NPI: 1972092674
VIRTUAL ACTIVE

KEVIN YOON, M.D.

Internal Medicine

NPI DATA 2026
Lancaster, CA
EASTERN VIRGINIA MEDICAL SCHOOL (2018)
8+ Years Exp.
ACCESS PROFILE
NPI: 1962732974
VIRTUAL ACTIVE

NANETTE FONTE, M.D.

Internal Medicine

NPI DATA 2026
Lancaster, CA
OTHER (2004)
16+ Years Exp.
ACCESS PROFILE
NPI: 1932111424
VIRTUAL ACTIVE

PRITHVIRAJ DHARMARAJA, M.D.

Internal Medicine

NPI DATA 2026
Lancaster, CA
OTHER (1980)
20+ Years Exp.
ACCESS PROFILE
NPI: 1851484323
VIRTUAL ACTIVE

KUMARAVEL PERUMALSAMY, M.D.

Internal Medicine

NPI DATA 2026
Lancaster, CA
OTHER (1995)
20+ Years Exp.
ACCESS PROFILE
NPI: 1720199763
VIRTUAL ACTIVE

ANTHONY DULGEROFF, M.D.

Internal Medicine

NPI DATA 2026
Lancaster, CA
UNIVERSITY OF SOUTHERN CALIFORNIA KECK SCHOOL OF MEDICINE (1988)
20+ Years Exp.
ACCESS PROFILE
NPI: 1669519765
VIRTUAL ACTIVE

RUSSELL GREIF, D.O.

Internal Medicine

NPI DATA 2026
Lancaster, CA
COLLEGE OF OSTEO MED OF THE PACIFIC AT POMONA (1986)
19+ Years Exp.
ACCESS PROFILE
NPI: 1659507788
VIRTUAL ACTIVE

AMINU BIRHAN, M.D.

Internal Medicine

NPI DATA 2026
Lancaster, CA
OTHER (1992)
17+ Years Exp.
ACCESS PROFILE
NPI: 1629411756
VIRTUAL ACTIVE

DUMINDA SURAWEERA, M.D.

Internal Medicine

NPI DATA 2026
Lancaster, CA
CREIGHTON UNIVERSITY SCHOOL OF MEDICINE (2013)
13+ Years Exp.
ACCESS PROFILE
NPI: 1588655450
VIRTUAL ACTIVE

DEEPAK SHIVARAM, M.D.

Internal Medicine

NPI DATA 2026
Lancaster, CA
OTHER (1988)
21+ Years Exp.
ACCESS PROFILE
NPI: 1578578365
VIRTUAL ACTIVE

KANAGARATNAM SIVALINGAM, M.D.

Internal Medicine

NPI DATA 2026
Lancaster, CA
OTHER (1967)
20+ Years Exp.
ACCESS PROFILE
NPI: 1346745262
VIRTUAL ACTIVE

ASHRUTA PATEL, DO, MS

Internal Medicine

NPI DATA 2026
Lancaster, CA
PHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE (2018)
8+ Years Exp.
ACCESS PROFILE
NPI: 1265610950
VIRTUAL ACTIVE

RENDELL MANALO, D.O.

Internal Medicine

NPI DATA 2026
Lancaster, CA
OTHER (2007)
18+ Years Exp.
ACCESS PROFILE
NPI: 1265590525
VIRTUAL ACTIVE

NILESH HINGARH, M.D.

Internal Medicine

NPI DATA 2026
Lancaster, CA
OTHER (2001)
20+ Years Exp.
ACCESS PROFILE
NPI: 1205852985
VIRTUAL ACTIVE

JATINDER PRUTHI, M.D.

Internal Medicine

NPI DATA 2026
Lancaster, CA
OTHER (1992)
20+ Years Exp.
ACCESS PROFILE
NPI: 1174629950
VIRTUAL ACTIVE

BASSEL HADAYA, M.D.

Internal Medicine

NPI DATA 2026
Lancaster, CA
OTHER (1999)
20+ Years Exp.
ACCESS PROFILE
NPI: 1144493131
VIRTUAL ACTIVE

FERDINAND PANOUSSI, D.O

Internal Medicine

NPI DATA 2026
Lancaster, CA
OTHER (2008)
18+ Years Exp.
ACCESS PROFILE
NPI: 1124138359
VIRTUAL ACTIVE

VINCENT HO, M.D.

Internal Medicine

NPI DATA 2026
Lancaster, CA
OTHER (1982)
20+ Years Exp.
ACCESS PROFILE
NPI: 1093806754
VIRTUAL ACTIVE

RAVI SHANKAR, M.D.

Internal Medicine

NPI DATA 2026
Lancaster, CA
OTHER (1980)
20+ Years Exp.
ACCESS PROFILE
NPI: 1073612545
VIRTUAL ACTIVE

VIVAIK TYAGI, M.D.

Internal Medicine

NPI DATA 2026
Lancaster, CA
OTHER (1993)
20+ Years Exp.
ACCESS PROFILE
NPI: 1023676376
VIRTUAL ACTIVE

JOSEPH MAHALLI

Internal Medicine

NPI DATA 2026
Lancaster, CA
OTHER (2019)
7+ Years Exp.
ACCESS PROFILE

Local Discovery Protocol

Navigating healthcare in Lancaster, CA 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 CA state licensing sourced from federal records.
  • Virtual Options: Encrypted telehealth consultations available for remote triage.
All Providers in CaliforniaNationwide Internal Medicines