Nicholas Chiang
Physician Assistant · Claremont, CA
Nicholas Chiang is a physician assistant with a practice address in Claremont, California, and NPI 1245729391, issued on May 3, 2018. Check the license (California 55904, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nicholas Chiang
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 55904 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1601 Monte Vista Ave Ste 190, Claremont, CA 91711
- Phone
- (909) 865-9977
- Enumerated
- May 3, 2018
- Record last updated
- Feb 25, 2026
- Fax
- (909) 469-2119
- Medicaid ID
- 1248729391 CA
- Medicare enrollment
- Enrolled (PECOS I20180927000803); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 1601 Monte Vista Ave Ste 190
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jennifer Guerra, MSPA-CPhysician Assistant1831425875
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Verify Nicholas Chiang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 55904Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% fewer Medicare Part D claims than the average physician assistant in 2024
558 Medicare Part D claims for 397 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 13 claims were for opioids.
Most prescribed
- Cephalexin79 claims
- Amoxicillin-Clavulanate Potass49 claims
- Fluticasone Propionate45 claims
- Azithromycin35 claims
- Mupirocin24 claims
- Albuterol Sulfate Hfa23 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Premier Family Medicine Associates, IncClaremont, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nicholas Chiang among 14,451 physician assistant records in California
Nicholas Chiang is one of 14,451 physician assistant records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 52% of them.
- NPI issued2018 · 52% of these records are older, 44% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2018 · median 2018 among the 7,214 with a school on file
- Record last updated2026 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
31 physician assistant records list a practice address in Claremont
They are 31 of the 800 NPPES records with a practice address in Claremont, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Claremont → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Jeanette AberinClaremont, CA 917111285187641
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- Kathleen Bianco, PA-CClaremont, CA 917111851583553
- Cristina Cadena, PA-CClaremont, CA 917111942733514
- Robyn Dettmar, PAClaremont, CA 917111417951096
- Jennifer Guerra, MSPA-CClaremont, CA 917111831425875
- Roy Guizado, P.A.-C.Claremont, CA 917111023129293
- Rachel Hechanova, PA-CClaremont, CA 917111740661586
Common questions
What is Nicholas Chiang's NPI number?
Nicholas Chiang's National Provider Identifier (NPI) is 1245729391, issued on May 3, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Nicholas Chiang located?
The NPPES record lists a practice address at 1601 Monte Vista Ave Ste 190, Claremont, CA, 91711. Phone: (909) 865-9977. Providers update this record themselves, so call before visiting.
How can I verify Nicholas Chiang's license?
NPPES lists California license number 55904, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Nicholas Chiang prescribe under Medicare Part D?
In 2024, Nicholas Chiang had 558 Medicare Part D claims for 397 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.