ASHLEY YU PA-C
NPI 1609557172
Physician Assistant in Claremont, CA

Q: What is Ashley Yu's NPI number?

The NPI number for Ashley Yu is 1609557172. It was assigned to this individual provider in the NPPES registry on July 27, 2023.

Q: What is Ashley Yu's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Q: When was this NPI record last updated?

The NPPES record for Ashley Yu was last updated on February 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since July 27, 2023PECOS Enrolled

1601 MONTE VISTA AVE STE 190, CLAREMONT, CA 91711(909) 865-9977(909) 469-2119 Get Directions Write a Review

NPPES record last updated: February 25, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Ashley Yu Pa-c NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ASHLEY YU PA-C (NPI 1609557172) is an individual physician assistant in Claremont, California and active in the NPI registry since July 2023. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2023).

NPPES Registry Identity

NPI1609557172

Entity TypeIndividualFemale

Primary Taxonomy363A00000X

Provider Legal NameASHLEY YUCredential: PA-C

Location Address1601 MONTE VISTA AVE STE 190Claremont, CA 91711-6600

Mailing Address1601 Monte Vista Ave Ste 100Claremont, CA 91711-6601

Phone(909) 865-9977

Fax(909) 469-2119

Sole ProprietorNo

Medical School CMSOtherGraduated 2023

Enumeration DateJuly 27, 2023

Last NPPES UpdateFebruary 25, 2026

NPPES CertifiedFebruary 25, 2026

✔ NPI 1609557172 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363A00000X

Definition

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

1601 MONTE VISTA AVE STE 190, Claremont, CA 91711

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Secondary Practice Locations 2

Location 13110 Chino Ave Ste 150BChino Hills, CA 91709-1295 · Phone (909) 630-7868 · Fax (909) 469-2109

Location 22333 Foothill Blvd Ste CLA Verne, CA 91750-3027 · Phone (909) 392-6511 · Fax (909) 469-2137

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ashley Yu Pa-c is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2466808191

PECOS Enrollment IDI20231031003489

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

88 services88 patients

Urinalysis, manual test 81002

A urinalysis is a simple, non-invasive test that checks the urine for various elements such as sugar, protein, and signs of infection. It can help detect many common conditions, including kidney disease and diabetes. The manual test involves a lab technician examining a urine sample.

46 services45 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

44 services44 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

17 services17 patients

Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19) 87811

This is a test to detect COVID-19, the virus causing severe respiratory illness. It uses a method called immunoassay, which identifies the virus by its unique proteins. The test is directly observed for accuracy. It helps determine if you're currently infected.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91711 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$96.36 typical visit price

range $62.96 – $187.60

Typical copayment $24.09 (range $15.74 – $46.90)

Most-billed visit code 99203

Established Patient

$77.96 typical visit price

range $20.84 – $153.61

Typical copayment $19.49 (range $5.21 – $38.40)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

NICHOLLE A HENLEY D.O.

Family Medicine