Active NPI
Ashley Yu, PA-C
- Physician Assistant
- Claremont, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Physician Assistant
- Practice address
- 1601 Monte Vista Ave Ste 190
Claremont, CA 91711-6600 - Phone
- (909) 865-9977
- Fax
- (909) 469-2119
- NPI assigned
- Jul 27, 2023
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Physician Assistant | 363A00000X | Primary |
Addresses
Primary practice location
1601 Monte Vista Ave Ste 190
Claremont, CA 91711-6600
Mailing address
1601 Monte Vista Ave Ste 100
Claremont, CA 91711-6601
Other practice location 1
3110 Chino Ave Ste 150B
Chino Hills, CA 91709-1295
Phone (909) 630-7868
Other practice location 2
2333 Foothill Blvd Ste C
LA Verne, CA 91750-3027
Phone (909) 392-6511
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: No
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Physician Assistant
- Education
- Other, 2023
- Medicare assignment
- May accept Medicare assignment
- Group practices
Practice addresses (Care Compare)
1601 Monte Vista Ave
Suite 190
Claremont, CA 91711-6600
Phone (909) 865-9977
1770 N Orange Grove Ave
Suite 101
Pomona, CA 91767-3027
Phone (909) 469-9494
2140 Grand Ave
Suite 125
Chino Hills, CA 91709-6802
Phone (909) 630-7875
2333 Foothill Blvd
La Verne, CA 91750-3027
Phone (909) 392-6501
Merit-based Incentive Payment System (MIPS)
- Final score
- 55.43 of 100
- Quality
- 13.12
- Promoting interoperability
- 100
- Improvement activities
- 0
- Cost
- 74.03
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Physician Assistant
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 63483 | CA | MD | Dentist |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Premier Family Medicine Associates, Inc | Current | Accepting new patients | |
| Pomona Valley Imaging Medical Group Inc | Past | Accepting new patients | |
| Premier Family Medicine Associates, Inc | Past | Accepting new patients |
Locations
2140 Grand Ave
Ste 125
Chino Hills, CA 91709
Phone (909) 630-7875
3110 Chino Ave
Ste 150B
Chino Hills, CA 91709
Phone (909) 630-7868
1601 Monte Vista Ave
Ste 190
Claremont, CA 91711
Phone (909) 865-9977
1601 Monte Vista Ave
Ste 100
Claremont, CA 91711
Phone (909) 630-7938
1601 Monte Vista Ave
Ste 260
Claremont, CA 91711
Phone (909) 450-1571
2333 Foothill Blvd
Ste C
La Verne, CA 91750
Phone (909) 392-6511
1770 N Orange Grove Ave
Ste 101
Pomona, CA 91767
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 and National Provider Directory roles.
-
- Health Service Clinic/Center
- Pomona, CA
- NPI 1912907114
-
- Health Service Clinic/Center
- La Verne, CA
- NPI 1033634373
-
- Specialist
- Pomona, CA
- NPI 1982667911
-
- Health Service Clinic/Center
- Claremont, CA
- NPI 1164668786
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1690416000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1771977600000",
"number": "1609557172",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1601 MONTE VISTA AVE STE 100",
"city": "CLAREMONT",
"state": "CA",
"postal_code": "917116601"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1601 MONTE VISTA AVE STE 190",
"city": "CLAREMONT",
"state": "CA",
"postal_code": "917116600",
"telephone_number": "909-865-9977",
"fax_number": "909-469-2119"
}
],
"practiceLocations": [
{
"address_1": "3110 Chino Ave Ste 150B",
"address_purpose": "LOCATION",
"city": "Chino Hills",
"state": "CA",
"postal_code": "917091295",
"country_code": "US",
"telephone_number": "909-630-7868",
"fax_number": "909-469-2109",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "2333 Foothill Blvd Ste C",
"address_purpose": "LOCATION",
"city": "LA Verne",
"state": "CA",
"postal_code": "917503027",
"country_code": "US",
"telephone_number": "909-392-6511",
"fax_number": "909-469-2137",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "YU",
"first_name": "ASHLEY",
"credential": "PA-C",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2023-07-27",
"last_updated": "2026-02-25",
"certification_date": "2026-02-25",
"status": "A"
},
"taxonomies": [
{
"code": "363A00000X",
"taxonomy_group": "",
"desc": "Physician Assistant",
"state": null,
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Claremont, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 25, 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.