Individual provider Active NPI

Ashley Yu, PA-C

  • Physician Assistant
  • Claremont, CA
National Provider Identifier
1609557172
Registry record updated Feb 25, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
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

Updated by the provider on Feb 25, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
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
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20231031003489 CA Practitioner - Physician Assistant 2466808191 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2023
Medicare assignment
May accept Medicare assignment
Group practices
Premier Family Medicine Associates, IncGroup PAC ID 4284547522, 65 clinicians

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 100Reported as group
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

LicenseStateTypeSpecialty
63483CAMDDentist

Practice roles

OrganizationSpecialtyStatusNew patients
Premier Family Medicine Associates, Inc CurrentSince Oct 19, 2023 Accepting new patients
Pomona Valley Imaging Medical Group Inc PastSince Sep 24, 2023 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.

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

Verify at the official NPI Registry.