Active NPI
Michael Stacey, M.D.
- Family Medicine Physician
- Union City, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Family Medicine Physician
- License
- A101385
- Practice address
- 33255 9TH St
Union City, CA 94587-2137 - Phone
- (510) 471-5888
- NPI assigned
- Nov 7, 2005
- Last updated
- Apr 13, 2026
- 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 | A101385 | CA | Primary |
Addresses
Primary practice location
33255 9TH St
Union City, CA 94587-2137
Mailing address
1260 B St Ste 125
Hayward, CA 94541-2934
Phone (510) 471-5880
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
- Temple University School of Medicine, 2001
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
28300 Huntwood Ave
Hayward, CA 94544-5425
Phone (510) 471-5880
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| A101385 | CA | MD | Family Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Tiburcio Vasquez Health Center, Inc. | Current | Accepting new patients | |
| Tiburcio Vasquez Health Center, Inc. | Current | Accepting new patients | |
| Tiburcio Vasquez Health Center, Inc. | Current | Accepting new patients | |
| Solano County Health and Social Services | Past | Accepting new patients |
Locations
1260 B St
Ste 125
Hayward, CA 94541
33255 9th St
Union City, CA 94587
Phone (510) 690-6052
Interoperability endpoints
- mstacey334831@direct.ochin.org
- mstacey835429@direct.ochin.org
Ownership & related parties
All facility ownership & control disclosures 1
Facilities whose Medicare enrollment lists this provider’s PECOS associate ID as an owner or managing party.
| Facility | Type | Role | Since |
|---|---|---|---|
| Lifelong Medical Care | Federally qualified health center | W-2 Managing Employee | Jun 24, 2019 |
Owned or controlled facilities with NPI records 1
Facilities whose Medicare enrollment lists this provider as an owner, officer, director or managing party.
-
- Community/Behavioral Health Agency
- Oakland, CA
- NPI 1023594991
W-2 Managing Employee
Organizations & group practices 4
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.
-
- Federally Qualified Health Center (FQHC)
- Union City, CA
- NPI 1851389696
-
- Federally Qualified Health Center (FQHC)
- Hayward, CA
- NPI 1407373921
-
- Federally Qualified Health Center (FQHC)
- San Leandro, CA
- NPI 1720405491
-
- Public Health or Welfare Agency
- Fairfield, CA
- NPI 1891851317
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1131321600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1776038400000",
"number": "1336120344",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1260 B ST STE 125",
"city": "HAYWARD",
"state": "CA",
"postal_code": "945412934",
"telephone_number": "510-471-5880"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "33255 9TH ST",
"city": "UNION CITY",
"state": "CA",
"postal_code": "945872137",
"telephone_number": "510-471-5888"
}
],
"practiceLocations": [],
"basic": {
"last_name": "STACEY",
"first_name": "MICHAEL",
"name_prefix": "Dr.",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2005-11-07",
"last_updated": "2026-04-13",
"certification_date": "2026-04-13",
"status": "A"
},
"taxonomies": [
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "CA",
"license": "A101385",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Union City, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; facility enrollments, owners and changes of ownership; Provider of Services certification data; 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.