Catherine Chan, PA-C
NPI 1093346504 · Medical Physician Assistant · Duarte, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Chan, PA-C is a Medical Physician Assistant provider in Duarte, CA (NPI 1093346504).
Provider details
- NPI number
- 1093346504
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- Yes
- License
- 57355 (CA)
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
6 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
85 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 41 | $104 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 30 | $146 |
| Automated Urinalysis Test81003 | 14 | $2 |
Typical Medicare-allowed amounts for these services range $2–$146 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azithromycin | 64 | 63 |
| Prednisone | 49 | 46 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 43 | 42 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 35 | 31 |
| Mupirocin | 31 | 28 |
| Cephalexin | 29 | 29 |
| Ibuprofen | 26 | 24 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-02-03
- Last updated
- 2025-02-17
- Certified
- 2025-02-17
Frequently asked questions
- What is Catherine Chan's NPI number?
- Catherine Chan's National Provider Identifier (NPI) is 1093346504, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Chan's specialty?
- Catherine Chan is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Catherine Chan located?
- Catherine Chan's practice location on file with NPPES is 1500 Duarte Rd, Duarte, CA 91010-3012.
- What is Catherine Chan's phone number?
- The practice phone number listed in the NPPES registry for Catherine Chan is (877) 460-4673.
- Does Catherine Chan accept Medicare?
- Catherine Chan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Chan's NPI active?
- Yes — Catherine Chan's NPI (1093346504) is active in the NPPES registry as of the last update on 2025-02-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.