Nicholas Chiang
NPI 1245729391 · Physician Assistant · Claremont, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nicholas Chiang is a Physician Assistant provider in Claremont, CA (NPI 1245729391).
Provider details
- NPI number
- 1245729391
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 55904 (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
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
348 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 | 139 | $81 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 49 | $114 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 32 | $100 |
| Urinalysis, Manual Test81002 | 30 | $3 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Tracing93005 | 23 | $7 |
| Detection Test By Immunoassay With Direct Visual Observation for Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19) |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 79 | 78 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 49 | 49 |
| Fluticasone Propionate | 45 | 45 |
| Azithromycin | 35 | 35 |
| Mupirocin | 24 | 24 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 23 | 23 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 22 |
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
- 2018-05-03
- Last updated
- 2026-02-25
- Certified
- 2026-02-25
Frequently asked questions
- What is Nicholas Chiang's NPI number?
- Nicholas Chiang's National Provider Identifier (NPI) is 1245729391, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicholas Chiang's specialty?
- Nicholas Chiang is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Nicholas Chiang located?
- Nicholas Chiang's practice location on file with NPPES is 1601 Monte Vista Ave Ste 190, Claremont, CA 91711-6600.
- What is Nicholas Chiang's phone number?
- The practice phone number listed in the NPPES registry for Nicholas Chiang is (909) 865-9977.
- Does Nicholas Chiang accept Medicare?
- Nicholas Chiang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nicholas Chiang's NPI active?
- Yes — Nicholas Chiang's NPI (1245729391) 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.