Active NPI
Gamage Nalinajith Nanayakkara, MD
- Obstetrics & Gynecology Physician
- Corona, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Obstetrics & Gynecology Physician
- License
- A35609
- Practice address
- 21634 Retreat Pkwy
Corona, CA 92883-6100 - Phone
- (951) 493-6933
- Fax
- (951) 826-8134
- NPI assigned
- Oct 18, 2006
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Obstetrics & Gynecology Physician | 207V00000X | A35609 | CA | Primary |
Addresses
Primary practice location
21634 Retreat Pkwy
Corona, CA 92883-6100
Mailing address
21634 Retreat Pkwy
Corona, CA 92883-6100
Phone (951) 493-6933
Other practice location 1
760 S Washburn
Ste 9
Corona, CA 92882
Phone (951) 371-1590
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Eligible to order & refer
- Part B services: No
- Medical equipment: Yes
- Home health: No
- Power mobility devices: Yes
- Hospice: No
Care Compare profile
Medicare Care Compare- Specialty
- Obstetrics/Gynecology
- Education
- Other, 1967
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
Practice addresses (Care Compare)
3660 Arlington Ave
Riverside, CA 92506-3912
3660 Arlington Ave
Riverside, CA 92506-3987
6529 Riverside Ave
Suite 220
Riverside, CA 92506-3100
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| A35609 | CA | MD | Obstetrics & Gynecology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Riverside Medical Clinic, Inc | Obstetrics & Gynecology | Current | Accepting new patients |
| St. Johns Community Health | Current | Accepting new patients | |
| St. Johns Community Health | Current | Accepting new patients | |
| St. Johns Community Health | Current | Accepting new patients | |
| Riverside Medical Clinic, Inc | Obstetrics & Gynecology | Current | Accepting new patients |
| Kayla M. Yinger N.P., Inc. | Current | Accepting new patients | |
| Obhg California, P.C. | Obstetrics & Gynecology | Current | Accepting new patients |
| Riverside Medical Clinic, Inc | Obstetrics & Gynecology | Current | Accepting new patients |
| RMC Surgery Center, LLC | Past | Accepting new patients | |
| Uhs Corona Inc | Past | Accepting new patients | |
| St. Johns Community Health | Past | Accepting new patients | |
| Doctors Hospital of Riverside LLC | Past | Accepting new patients |
Locations
2115 N Wilmington Ave
Compton, CA 90222
Phone (310) 603-1332
800 S Main St
Corona, CA 92882
Phone (909) 625-5411
760 Washburn Ave
Ste 9
Corona, CA 92882
Phone (909) 279-8600
2185 Citracado Pkwy
Escondido, CA 92029
Phone (442) 281-5000
5555 Grossmont Center Dr
La Mesa, CA 91942
Phone (619) 465-0711
28062 Baxter Rd
Murrieta, CA 92563
Phone (951) 290-4000
100 W California Blvd
Pasadena, CA 91105
Phone (626) 397-3445
39000 Bob Hope Dr
Rancho Mirage, CA 92270
Phone (760) 340-3911
350 Terracina Blvd
Redlands, CA 92373
Phone (909) 335-5500
7160 Brockton Ave
Riverside, CA 92506
Phone (951) 782-3714
3660 Arlington Ave
Riverside, CA 92506
Phone (951) 782-3789
1821 S San Jacinto Ave
Ste D
San Jacinto, CA 92583
Phone 32328598302332
1500 N Waterman Ave
Sn Bernrdno, CA 92404
Phone (909) 381-1591
21634 Retreat Pkwy
Temescal Valley, CA 92883
Phone (951) 782-5157
Organizations & group practices 12
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
- Obstetrics & Gynecology Nurse Practitioner
- Corona, CA
- NPI 1952606410
-
dba Riverside Medical Clinic
- Dermatology Physician
- Riverside, CA
- NPI 1720183403
Obstetrics & Gynecology
-
dba Riverside Medical Clinic
- Internal Medicine Physician
- Riverside, CA
- NPI 1730180415
Obstetrics & Gynecology
-
dba Riverside Medical Clinic
- Family Medicine Physician
- Eastvale, CA
- NPI 1972845535
Obstetrics & Gynecology
-
- Community Health Clinic/Center
- Los Angeles, CA
- NPI 1073363768
-
- Federally Qualified Health Center (FQHC)
- Los Angeles, CA
- NPI 1073653630
-
- Community Health Clinic/Center
- Los Angeles, CA
- NPI 1417469495
-
- Obstetrics & Gynecology Physician
- Greenville, SC
- NPI 1215258892
-
dba Parkview Community Hospital Medical Center
- General Acute Care Hospital
- Riverside, CA
- NPI 1124596382
-
dba RMC Surgery Center
- Ambulatory Surgical Clinic/Center
- Riverside, CA
- NPI 1396709077
-
- Federally Qualified Health Center (FQHC)
- San Bernardino, CA
- NPI 1780376947
-
dba Corona Regional Medical Center
- Rehabilitation Hospital Unit
- Corona, CA
- NPI 1255327920
Hospital & facility affiliations 1
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
dba Corona Regional Medical Center
- General Acute Care Hospital
- Corona, CA
- NPI 1457347239
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1161129600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1744588800000",
"number": "1497836464",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "21634 RETREAT PKWY",
"city": "CORONA",
"state": "CA",
"postal_code": "928836100",
"telephone_number": "951-493-6933",
"fax_number": "951-826-8134"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "21634 RETREAT PKWY",
"city": "CORONA",
"state": "CA",
"postal_code": "928836100",
"telephone_number": "951-493-6933",
"fax_number": "951-826-8134"
}
],
"practiceLocations": [
{
"address_1": "760 S Washburn",
"address_2": "Ste 9",
"address_purpose": "LOCATION",
"city": "Corona",
"state": "CA",
"postal_code": "92882",
"country_code": "US",
"telephone_number": "951-371-1590",
"fax_number": "951-735-6553",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "NANAYAKKARA",
"first_name": "GAMAGE",
"middle_name": "NALINAJITH",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-10-18",
"last_updated": "2025-04-14",
"certification_date": "2025-04-14",
"status": "A"
},
"taxonomies": [
{
"code": "207V00000X",
"taxonomy_group": "",
"desc": "Obstetrics & Gynecology",
"state": "CA",
"license": "A35609",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Corona, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 14, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.