NPPES file of Aug 9, 2026

Clarissa Sherrill Chan, PA-C

Physician Assistant · San Jose, CA

Clarissa Sherrill Chan, PA-C is a physician assistant with a practice address in San Jose, California, and NPI 1356876064, issued on May 1, 2017. Check the license (California 54392, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1356876064
Name
Clarissa Sherrill Chan
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
54392 CA
Self-reported in NPPES; status is on the state search
Practice location
685 Coleman Ave Ste 20, San Jose, CA 95110
Phone
(408) 217-6404
Enumerated
May 1, 2017
Record last updated
Dec 11, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20170907001101); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 685 Coleman Ave Ste 20

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Shirley Brodston, APRNFamily Nurse Practitioner1083194732
  2. Diem-Thuy Le, PAPhysician Assistant1093244246
  3. Victoria PerezFamily Nurse Practitioner1962931600

Verify Clarissa Sherrill Chan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 54392
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

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48% fewer Medicare Part D claims than the average physician assistant in 2024

435 Medicare Part D claims for 166 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Clarissa Chan435
  2. Specialty average830

Most prescribed

  1. Gabapentin34 claims
  2. Rosuvastatin Calcium27 claims
  3. Levothyroxine Sodium17 claims
  4. Eliquis16 claims
  5. Metoprolol Succinate16 claims
  6. Atorvastatin Calcium15 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

  1. UC San Diego Health Community GroupSan Diego, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Clarissa Sherrill Chan among 14,451 physician assistant records in California

Clarissa Sherrill Chan, PA-C 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 2017, is newer than 47% of them.

  • NPI issued2017 · 47% of these records are older, 48% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2017 · median 2018 among the 7,214 with a school on file
  • Record last updated2020 · 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).

221 physician assistant records list a practice address in San Jose

They are 221 of the 20,925 NPPES records with a practice address in San Jose, and 14,451 physician assistant records in California.

The 8 physician assistant records with the nearest ZIP codes

  1. Diem-Thuy Le, PASan Jose, CA 951101093244246
  2. Karli FischerSan Jose, CA 951111114698339
  3. Mahasti Ardekani-PourzandSan Jose, CA 951121497069082
  4. Kelly Batz, PA-CSan Jose, CA 951121598261612
  5. Ellen ChurchSan Jose, CA 951121275046591
  6. Madelyn Costa, P.A.San Jose, CA 951121437343134
  7. Victoria Demartini, PA-CSan Jose, CA 951121316015688
  8. Michael Geller, PASan Jose, CA 951121144625179

Common questions

What is Clarissa Sherrill Chan, PA-C's NPI number?

Clarissa Sherrill Chan, PA-C's National Provider Identifier (NPI) is 1356876064, issued on May 1, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Clarissa Sherrill Chan, PA-C located?

The NPPES record lists a practice address at 685 Coleman Ave Ste 20, San Jose, CA, 95110. Phone: (408) 217-6404. Providers update this record themselves, so call before visiting.

How can I verify Clarissa Sherrill Chan, PA-C's license?

NPPES lists California license number 54392, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Clarissa Sherrill Chan, PA-C prescribe under Medicare Part D?

In 2024, Clarissa Sherrill Chan, PA-C had 435 Medicare Part D claims for 166 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.