NPPES file of Aug 9, 2026

Stephen Yau, MD

Cardiovascular Disease Physician · Chula Vista, CA

Stephen Yau, MD is a cardiovascular disease physician with a practice address in Chula Vista, California, and NPI 1689037376, issued on Mar 31, 2016. Check the license (California 151069, 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
1689037376
Name
Stephen Yau
Credential
MD
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License number
151069 CA
Self-reported in NPPES; status is on the state search
Practice location
429 Broadway, Chula Vista, CA 91910
Phone
(619) 434-0204
Enumerated
Mar 31, 2016
Record last updated
Jun 21, 2022
Fax
(619) 337-0191
Medicaid ID
SY3232267556 CA
Medicare enrollment
Enrolled (PECOS I20220601001801); accepts Medicare assignment
Medical or professional school
University Of Tennessee, Hsc, College Of Medicine, 2016
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 429 Broadway

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

  1. Priscilla Inda, PA-CPhysician Assistant1679008379
  2. Kimberly Johnson, NPAdult Health Nurse Practitioner1477024370
  3. Hector Rodriguez, PAPhysician Assistant1295621266
  4. Joanna YousifPhysician Assistant1346010519

Verify Stephen Yau in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 151069
    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

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6% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024

2,883 Medicare Part D claims for 681 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.

  1. Stephen Yau2,883
  2. Specialty average3,078

Most prescribed

  1. Eliquis306 claims
  2. Atorvastatin Calcium251 claims
  3. Amlodipine Besylate210 claims
  4. Metoprolol Succinate199 claims
  5. Furosemide181 claims
  6. Losartan Potassium165 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.

Industry payments in 2024: $162.45

3 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 16,686 providers of this specialty with any payment received $3,819.56 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Stephen Yau$162.45
  2. Specialty average$3,819.56

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Adventist Health Physicians NetworkLos Angeles, CA

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

Stephen Yau among 2,574 cardiovascular disease physician records in California

Stephen Yau, MD is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 88% of them.

  • NPI issued2016 · 88% of these records are older, 9% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2016 · median 1999 among the 1,742 with a school on file
  • Record last updated2022 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Cardiovascular Disease Physician providers in California

There are 2,574 cardiovascular disease physician records in California.

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. Vitali Aizin, MDChula Vista, CA 919101366545733
  2. Brett Berman, MDChula Vista, CA 919101457446684
  3. Paulo Guillinta, M.D.Chula Vista, CA 919101881661536
  4. G Hedayat, MDChula Vista, CA 919101639127582
  5. Gustavo Mondragon, M.D.Chula Vista, CA 919101619080041
  6. Glenn Perelson, M.D.Chula Vista, CA 919101972506970
  7. Sonia Ponce, MDChula Vista, CA 919101164659033
  8. Norberto Waisman, M.D.Chula Vista, CA 919101407962491

Common questions

What is Stephen Yau, MD's NPI number?

Stephen Yau, MD's National Provider Identifier (NPI) is 1689037376, issued on Mar 31, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Stephen Yau, MD located?

The NPPES record lists a practice address at 429 Broadway, Chula Vista, CA, 91910. Phone: (619) 434-0204. Providers update this record themselves, so call before visiting.

How can I verify Stephen Yau, MD's license?

NPPES lists California license number 151069, 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 Stephen Yau, MD prescribe under Medicare Part D?

In 2024, Stephen Yau, MD had 2,883 Medicare Part D claims for 681 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.