Active NPI
Ray Mak
- Family Medicine Physician
- Oakland, CA
National Provider Identifier
1972253292
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Family Medicine Physician
- License
- A190402
- Practice address
- 818 Webster St
Oakland, CA 94607-4220 - Phone
- (510) 986-6800
- NPI assigned
- Mar 28, 2022
- 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 |
|---|---|---|---|---|
| Family Medicine Physician | 207Q00000X | A190402 | CA | Primary |
Addresses
Primary practice location
818 Webster St
Oakland, CA 94607-4220
Mailing address
818 Webster St
Oakland, CA 94607-4220
Phone (510) 986-6800
Other practice location 1
1563 Mission St
San Francisco, CA 94103-2543
Phone (415) 746-1940
Other practice location 2
3569 Round Barn Cir
Santa Rosa, CA 95403-5781
Phone (707) 303-3600
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Family Practice
- Education
- Other, 2022
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
751 Lombardi CT
Santa Rosa, CA 95407-6798
Phone (707) 303-3600
818 Webster St
Oakland, CA 94607-4220
Phone (510) 986-6800
Hospital & facility affiliations
- Advanced Home Health Northbay, Inc
- Providence Santa Rosa Memorial Hospital
- Sutter Santa Rosa Regional Hospital
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| A190402 | CA | MD | Family Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Santa Rosa Community Health Centers | Current | Accepting new patients | |
| Santa Rosa Community Health Centers | Current | Accepting new patients | |
| Sutter West Bay Medical Foundation | Family Medicine | Past | Accepting new patients |
Locations
3569 Round Barn Cir
Santa Rosa, CA 95403
3569 Round Barn Cir
Ste 200
Santa Rosa, CA 95403
Phone (707) 583-8800
Interoperability endpoints
- rmak627885@direct.ochin.org
- rmak625636@hisp.ehr.sutterhealth.org
Organizations & group practices 5
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Federally Qualified Health Center (FQHC)
- Santa Rosa, CA
- NPI 1578631172
-
- Federally Qualified Health Center (FQHC)
- Oakland, CA
- NPI 1841331402
-
- Federally Qualified Health Center (FQHC)
- San Francisco, CA
- NPI 1760427843
-
- Federally Qualified Health Center (FQHC)
- Santa Rosa, CA
- NPI 1467180430
-
- Family Medicine Physician
- San Francisco, CA
- NPI 1104852789
Hospital & facility affiliations 3
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- Home Health Agency
- Walnut Creek, CA
- NPI 1457720617
-
- General Acute Care Hospital
- Santa Rosa, CA
- NPI 1134152549
-
- General Acute Care Hospital
- Santa Rosa, CA
- NPI 1740413798
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1648425600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1788998400000",
"number": "1972253292",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "818 WEBSTER ST",
"city": "OAKLAND",
"state": "CA",
"postal_code": "946074220",
"telephone_number": "510-986-6800"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "818 WEBSTER ST",
"city": "OAKLAND",
"state": "CA",
"postal_code": "946074220",
"telephone_number": "510-986-6800"
}
],
"practiceLocations": [
{
"address_1": "1563 Mission St",
"address_purpose": "LOCATION",
"city": "San Francisco",
"state": "CA",
"postal_code": "941032543",
"country_code": "US",
"telephone_number": "415-746-1940",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "3569 Round Barn Cir",
"address_purpose": "LOCATION",
"city": "Santa Rosa",
"state": "CA",
"postal_code": "954035781",
"country_code": "US",
"telephone_number": "707-303-3600",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "MAK",
"first_name": "RAY",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2022-03-28",
"last_updated": "2026-09-10",
"certification_date": "2026-09-10",
"status": "A"
},
"taxonomies": [
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "CA",
"license": "A190402",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Oakland, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 10, 2026; 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.