Active NPI
Anne Liao, MD
- Obstetrics & Gynecology Physician
- Diamond Bar, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Obstetrics & Gynecology Physician
- License
- A193649
- Practice address
- 253 S Diamond Bar Blvd
Diamond Bar, CA 91765-1606 - Phone
- (909) 860-1144
- NPI assigned
- Jun 6, 2021
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Student in an Organized Health Care Education/Training Program | 390200000X | |||
| Obstetrics & Gynecology Physician | 207V00000X | A193649 | CA | Primary |
Addresses
Primary practice location
253 S Diamond Bar Blvd
Diamond Bar, CA 91765-1606
Mailing address
1720 E Cesar E Chavez Ave
Los Angeles, CA 90033-2414
Phone (323) 260-5781
Other practice location 1
1720 E Cesar E Chavez Ave
Los Angeles, CA 90033-2414
Phone (323) 260-5781
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
- Obstetrics/Gynecology
- Education
- Other, 2021
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
253 S Diamond Bar Blvd
Diamond Bar, CA 91765-1606
Phone (909) 860-1144
Hospital & facility affiliations
- Providence St. Jude Medical Center
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| A193649 | CA | MD | Obstetrics & Gynecology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Providence Medical Foundation | Obstetrics & Gynecology | Current | Accepting new patients |
| Providence Medical Foundation | Current | Accepting new patients | |
| Providence Medical Foundation | Current | Accepting new patients |
Locations
200 W Ctr St Promenade
Ste 300
Anaheim, CA 92805
Phone (714) 449-4841
253 S Diamond Bar Blvd
Diamond Bar, CA 91765
Phone (909) 860-1144
1514 Valley Vista Dr
Diamond Bar, CA 91765
Phone (909) 560-1144
100 E Valencia Mesa Dr
Ste 105
Fullerton, CA 92835
Phone (714) 446-5200
Networks
- BSC 65 PLUS INDIVIDUAL MAPD
Interoperability endpoints
- aliao4014321@oc.providencedirect.org
Organizations & group practices 3
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.
-
- Family Medicine Physician
- Brea, CA
- NPI 1871607762
Obstetrics & Gynecology
-
- General Practice Physician
- Diamond Bar, CA
- NPI 1285890624
-
- Family Medicine Physician
- Anaheim, CA
- NPI 1639715709
Hospital & facility affiliations 2
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Fullerton, CA
- NPI 1194926279
-
- General Acute Care Hospital
- Brea, CA
- NPI 1891904942
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1622937600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1756771200000",
"number": "1164099487",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1720 E CESAR E CHAVEZ AVE",
"city": "LOS ANGELES",
"state": "CA",
"postal_code": "900332414",
"telephone_number": "323-260-5781"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "253 S DIAMOND BAR BLVD",
"city": "DIAMOND BAR",
"state": "CA",
"postal_code": "917651606",
"telephone_number": "909-860-1144"
}
],
"practiceLocations": [
{
"address_1": "1720 E Cesar E Chavez Ave",
"address_purpose": "LOCATION",
"city": "Los Angeles",
"state": "CA",
"postal_code": "900332414",
"country_code": "US",
"telephone_number": "323-260-5781",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "LIAO",
"first_name": "ANNE",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2021-06-06",
"last_updated": "2025-09-02",
"certification_date": "2025-09-02",
"status": "A"
},
"taxonomies": [
{
"code": "390200000X",
"taxonomy_group": "",
"desc": "Student in an Organized Health Care Education/Training Program",
"state": null,
"license": null,
"primary": false
},
{
"code": "207V00000X",
"taxonomy_group": "",
"desc": "Obstetrics & Gynecology",
"state": "CA",
"license": "A193649",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Diamond Bar, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 2, 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.