Providers
39
Locations
3
Specialties
4
Insurance Plans
13
About Gn Medical Associates, Inc
Background and practice information
Gn Medical Associates, INC is a established group medical practice based in Costa Mesa, CA, with 39 affiliated healthcare providers practicing across 3 locations.
The practice brings together providers across multiple specialties, including nurse practitioner, internal medicine, family practice, and general practice. Its providers are in-network with 13 insurance plans, though coverage varies by individual provider and should be confirmed before scheduling.
Practice Locations
3 locations
Gn Medical Associates, IncPrimary
3401 W SUNFLOWER AVE, Santa Ana, CA 927046948
(714) 619-8777
Affiliations
Hospitals where providers at Gn Medical Associates, Inc hold admitting privileges
Insurance Networks
Accepted insurance plans and networks
Gn Medical Associates, Inc accepts 66 plans from 11 insurers, including Cigna, Aetna, UnitedHealthcare.
Source: CMS Transparency in Coverage filings (March 2026). Network participation may change — verify with the provider's office before scheduling.
Specialties at Gn Medical Associates, Inc
Provider specialties represented at this practice
Healthcare Providers in Santa Ana
14 providers practice here
Orlando Collado, MD
Family Practice
Santa Ana, CA
Michael Pietila, MD
Family Practice
Santa Ana, CA
Iman Guirgis, MD
General Practice
Santa Ana, CA
Wesam Houshan, MD
Internal Medicine
Santa Ana, CA
Liliane Idylle, DO
Internal Medicine
Santa Ana, CA
Priya Jagasia, MD
Internal Medicine · Telehealth
Santa Ana, CA
Rafaelito Victoria, MD
Internal Medicine · Telehealth
Santa Ana, CA
James Agatep, NP
Nurse Practitioner
Santa Ana, CA
Marjorie Chan, NP
Nurse Practitioner
Santa Ana, CA
George Damasco, NP
Nurse Practitioner · Telehealth
Santa Ana, CA
Mary Grace Matin
Nurse Practitioner
Santa Ana, CA
Marianne Plakas
Nurse Practitioner
Santa Ana, CA
Marcelle Sagerian
Nurse Practitioner
Santa Ana, CA
Julie Wood, NP
Nurse Practitioner
Santa Ana, CA
Frequently Asked Questions
Common questions about Gn Medical Associates, Inc
How many providers are at Gn Medical Associates, INC?
Gn Medical Associates, INC has 39 affiliated healthcare providers across 3 locations. You can browse the full provider roster, with specialties and locations, on this page.
What specialties does Gn Medical Associates, INC offer?
The practice includes providers in nurse practitioner, internal medicine, family practice, and general practice. Use the specialty filter on the provider list to find a specific type of provider.
What insurance does Gn Medical Associates, INC accept?
Providers at Gn Medical Associates, INC are collectively in-network with 13 insurance plans. Acceptance varies by individual provider, so confirm your specific plan with the office before your visit.
Where is Gn Medical Associates, INC located?
Gn Medical Associates, INC's primary location is in Costa Mesa, CA, with 2 additional locations listed on this page. See the contact section for the full address and phone number.
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