Ashley Yu, PA-C
NPI 1609557172 · Physician Assistant · Claremont, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ashley Yu, PA-C is a Physician Assistant provider in Claremont, CA (NPI 1609557172).
Provider details
- NPI number
- 1609557172
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
2 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
206 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 88 | $81 |
| Urinalysis, Manual Test81002 | 46 | $3 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 44 | $117 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 17 | $101 |
| Detection Test By Immunoassay With Direct Visual Observation for Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19)87811 | 11 | $41 |
Typical Medicare-allowed amounts for these services range $3–$117 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 62 | 61 |
| Fluticasone Propionate | 34 | 34 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 30 | 29 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 26 | 25 |
| Azithromycin | 19 | 19 |
| Prednisone | 19 | 19 |
| Doxycycline Hyclate | 17 | 17 |
Practice location
Mailing address
Additional practice locations (2)
- 3110 Chino Ave Ste 150bChino Hills, CA 91709-1295Phone: (909) 630-7868Fax: (909) 469-2109
- 2333 Foothill Blvd Ste CLa Verne, CA 91750-3027Phone: (909) 392-6511Fax: (909) 469-2137
Registry dates
- Enumerated
- 2023-07-27
- Last updated
- 2026-02-25
- Certified
- 2026-02-25
Frequently asked questions
- What is Ashley Yu's NPI number?
- Ashley Yu's National Provider Identifier (NPI) is 1609557172, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ashley Yu's specialty?
- Ashley Yu is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ashley Yu located?
- Ashley Yu's practice location on file with NPPES is 1601 Monte Vista Ave Ste 190, Claremont, CA 91711-6600.
- What is Ashley Yu's phone number?
- The practice phone number listed in the NPPES registry for Ashley Yu is (909) 865-9977.
- Does Ashley Yu accept Medicare?
- Ashley Yu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ashley Yu's NPI active?
- Yes — Ashley Yu's NPI (1609557172) is active in the NPPES registry as of the last update on 2026-02-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.