Michelle Chau
Physician Assistant · Vallejo, CA
Michelle Chau is a physician assistant with a practice address in Vallejo, California, and NPI 1255905626, issued on May 19, 2021. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Michelle Chau
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 1310 Club Dr, Vallejo, CA 94592
- Phone
- (707) 638-5809
- Enumerated
- May 19, 2021
- Record last updated
- May 19, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20250220001366); accepts Medicare assignment
- Medical or professional school
- Touro Un Col Of Osteopathic Medicine, Henderson, 2020
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
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Verify Michelle Chau in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average physician assistant in 2024
195 Medicare Part D claims for 97 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin-Clavulanate Potass25 claims
- Nitrofurantoin Mono-Macro11 claims
- Sulfamethoxazole-Trimethoprim11 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
- EL Camino Health Medical Network LLCMountain View, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michelle Chau among 14,451 physician assistant records in California
Michelle Chau 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 2021, is newer than 67% of them.
- NPI issued2021 · 67% of these records are older, 27% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2020 · median 2018 among the 7,214 with a school on file
- Record last updated2021 · 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).
215 physician assistant records list a practice address in Vallejo
They are 215 of the 2,836 NPPES records with a practice address in Vallejo, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Vallejo → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Tramanh BuiVallejo, CA 945921982249314
- Janessa Rose CaballeroVallejo, CA 945921225632979
- Sabrina ChangVallejo, CA 945921497378970
- Alexander Flood-BryzmanVallejo, CA 945921194210351
- Doreen Frempong, PA-CVallejo, CA 945921487111258
- Helen HuangVallejo, CA 945921730753815
- Paul KimVallejo, CA 945921154995280
- Monique KoechlinVallejo, CA 945921609440890
Common questions
What is Michelle Chau's NPI number?
Michelle Chau's National Provider Identifier (NPI) is 1255905626, issued on May 19, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Michelle Chau located?
The NPPES record lists a practice address at 1310 Club Dr, Vallejo, CA, 94592. Phone: (707) 638-5809. Providers update this record themselves, so call before visiting.
How can I verify Michelle Chau's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Michelle Chau prescribe under Medicare Part D?
In 2024, Michelle Chau had 195 Medicare Part D claims for 97 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.