NPPES file of Aug 9, 2026

Elaine Y. Chau, MD

Family Medicine Physician · Roseville, CA

Elaine Y. Chau, MD is a family medicine physician with a practice address in Roseville, California, and NPI 1326500836, issued on Apr 3, 2019. Check the license (California A179050, as entered in NPPES) on the Medical Board of California; 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
1326500836
Name
Elaine Y. Chau
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A179050 CA
Self-reported in NPPES; status is on the state search
Practice location
1001 Riverside Ave, Roseville, CA 95678
Phone
(916) 784-4050
Enumerated
Apr 3, 2019
Record last updated
Jul 3, 2022
Medicare enrollment
Enrolled (PECOS I20221013000163); accepts Medicare assignment
Medical or professional school
Drexel University College Of Medicine, 2019
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 1001 Riverside Ave

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

  1. Janet AoyamaPharmacist1114459930
  2. Katherine Arbegast, O.D.Optometrist1700933587
  3. Saimah ArshadPharmacist1023369832
  4. Hamraz Bainotti, PHARM.D.Pharmacist1528129137
  5. Heather Cortez, LCSWClinical Social Worker1831933779
  6. Kyle Crooks, D.O.Family Medicine Physician1750743019

Verify Elaine Y. Chau in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A179050
    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
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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5% more Medicare Part D claims than the average family medicine physician in 2024

3,732 Medicare Part D claims for 429 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 109 claims were for opioids.

  1. Elaine Chau3,732
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium274 claims
  2. Levothyroxine Sodium173 claims
  3. Losartan Potassium143 claims
  4. Lisinopril125 claims
  5. Amlodipine Besylate110 claims
  6. Fluticasone Propionate97 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. Permanente Medical Group IncRoseville, CA

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

Elaine Y. Chau among 17,133 family medicine physician records in California

Elaine Y. Chau, MD is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 85% of them.

  • NPI issued2019 · 85% of these records are older, 12% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2019 · median 2005 among the 10,652 with a school on file
  • Record last updated2022 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

136 family medicine physician records list a practice address in Roseville

They are 136 of the 5,340 NPPES records with a practice address in Roseville, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Anna Tzeitel Abalos, MDRoseville, CA 956781720200017
  2. Kristianne Amurao, MDRoseville, CA 956781225650856
  3. Kyle Crooks, D.O.Roseville, CA 956781750743019
  4. Maika Del Mar, M.D.Roseville, CA 956781659373603
  5. Wenny Jean, MDRoseville, CA 956781447279971
  6. Tae Jung, D.ORoseville, CA 956781891925889
  7. Rafael Vidal Macaraeg, MDRoseville, CA 956781326788571
  8. Fareeha Sattar, D.ORoseville, CA 956781467726968

Common questions

What is Elaine Y. Chau, MD's NPI number?

Elaine Y. Chau, MD's National Provider Identifier (NPI) is 1326500836, issued on Apr 3, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Elaine Y. Chau, MD located?

The NPPES record lists a practice address at 1001 Riverside Ave, Roseville, CA, 95678. Phone: (916) 784-4050. Providers update this record themselves, so call before visiting.

How can I verify Elaine Y. Chau, MD's license?

NPPES lists California license number A179050, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Elaine Y. Chau, MD prescribe under Medicare Part D?

In 2024, Elaine Y. Chau, MD had 3,732 Medicare Part D claims for 429 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.