Providers
12
Locations
2
Specialties
5
Insurance Plans
15
About Gastro Care Institute
Background and practice information
Gastro Care Institute is a mid-sized group medical practice based in Lancaster, CA, with 12 affiliated healthcare providers practicing across 2 locations.
The practice brings together providers across multiple specialties, including gastroenterology, nurse practitioner, pathology, and internal medicine. Its providers are in-network with 15 insurance plans, though coverage varies by individual provider and should be confirmed before scheduling.
Across its providers, the practice has a strong average Merit-based Incentive Payment System (MIPS) score of 99.2 out of 100, a quality measure published by the Centers for Medicare & Medicaid Services.
Practice Locations
2 locations
Gastro Care InstitutePrimary
43944 15TH ST W, Lancaster, CA 935345207
(661) 529-7550
Affiliations
Hospitals where providers at Gastro Care Institute hold admitting privileges
Insurance Networks
Accepted insurance plans and networks
Gastro Care Institute accepts 61 plans from 11 insurers, including Cigna, UnitedHealthcare, Aetna.
Source: CMS Transparency in Coverage filings (March 2026). Network participation may change — verify with the provider's office before scheduling.
Quality & Performance
Specialties at Gastro Care Institute
Provider specialties represented at this practice
Healthcare Providers in Lancaster
12 providers practice here
Prithviraj Dharmaraja, MD
Gastroenterology · Telehealth
Lancaster, CA
Kumaravel Perumalsamy, MD
Gastroenterology · Telehealth
Lancaster, CA
Duminda Suraweera, MD
Gastroenterology · Telehealth
Lancaster, CA
Vivaik Tyagi, MD
Gastroenterology · Telehealth
Lancaster, CA
Long Le, MD
Internal Medicine · Telehealth
Lancaster, CA
Marina Bragasin, NP
Nurse Practitioner
Lancaster, CA
Jamie Michalski, NP
Nurse Practitioner
Lancaster, CA
Relly Mer Segovia, NP
Nurse Practitioner · Telehealth
Lancaster, CA
Vanessa Tabungar, NP
Nurse Practitioner
Lancaster, CA
Deepthi Karunasiri, MD
Pathology
Lancaster, CA
Kumari Wickramasinghe, MD
Pathology
Lancaster, CA
Sara Erdman
Registered Dietitian Or Nutrition Professional
Lancaster, CA
Frequently Asked Questions
Common questions about Gastro Care Institute
How many providers are at Gastro Care Institute?
Gastro Care Institute has 12 affiliated healthcare providers across 2 locations. You can browse the full provider roster, with specialties and locations, on this page.
What specialties does Gastro Care Institute offer?
The practice includes providers in gastroenterology, nurse practitioner, pathology, and internal medicine, among others. Use the specialty filter on the provider list to find a specific type of provider.
What insurance does Gastro Care Institute accept?
Providers at Gastro Care Institute are collectively in-network with 15 insurance plans. Acceptance varies by individual provider, so confirm your specific plan with the office before your visit.
Does Gastro Care Institute have a quality rating?
The practice's providers have an average MIPS quality score of 99.2 out of 100, based on Centers for Medicare & Medicaid Services data. MIPS measures performance across quality, cost, care coordination, and use of health technology.
Where is Gastro Care Institute located?
Gastro Care Institute's primary location is in Lancaster, CA, with 1 additional location listed on this page. See the contact section for the full address and phone number.
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