NPPES file of Aug 9, 2026

Hansi Zhao, M.D.

Anesthesiology Physician · Pleasanton, CA

Hansi Zhao, M.D. is an anesthesiology physician with a practice address in Pleasanton, California, and NPI 1811347123, issued on Jun 16, 2016. Check the license (California A170229, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1811347123
Name
Hansi Zhao
Credential
M.D.
Primary taxonomy
Anesthesiology Physician 207L00000X
License numbers
A170229 CA
11018947A IN
Self-reported in NPPES; status is on the state search
Practice location
5555 W Las Positas Blvd, Pleasanton, CA 94588
Phone
(925) 847-3000
Enumerated
Jun 16, 2016
Record last updated
Apr 13, 2023
Medicare enrollment
Enrolled (PECOS I20210319000270); accepts Medicare assignment
Medical or professional school
Indiana University School 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 5555 W Las Positas Blvd

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

  1. Dennis Alfaro, M.D.Emergency Medicine Physician1407847718
  2. Ashley Altman, MDDiagnostic Radiology Physician1649697947
  3. Joshua AshfordEmergency Registered Nurse1972458941
  4. Abinav Baweja, MDMedical Oncology Physician1770961575
  5. Brooke BettsPharmacist1962178491
  6. Myrna Castelazo, M.D.Diagnostic Radiology Physician1407290513

Verify Hansi Zhao in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A170229
    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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Bills Medicare through one group practice

  1. Premier Anesthesia OF California PCPleasanton, CA

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

Hansi Zhao among 7,571 anesthesiology physician records in California

Hansi Zhao, M.D. is one of 7,571 anesthesiology physician records with a practice address in California. 71% 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 80% of them.

  • NPI issued2016 · 80% of these records are older, 17% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2016 · median 2006 among the 4,868 with a school on file
  • Record last updated2023 · 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 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anesthesiology Physician providers in California

There are 7,571 anesthesiology physician records in California.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Urmila Kamdar, MDPleasanton, CA 945881811907389
  2. Currie Lee, MDPleasanton, CA 945881568629707
  3. Stephen Lo, MDPleasanton, CA 945881558398719
  4. Tara Hojiwala, MDVallejo, CA 945891861435190
  5. Judith Hwang, MDVallejo, CA 945891528043445
  6. Wayne Lee, M.D.Union City, CA 945871740529593
  7. Caroline Lin, M.D.Vallejo, CA 945891659349496
  8. Edmund Marroquin, MDVallejo, CA 945891215981469

Common questions

What is Hansi Zhao, M.D.'s NPI number?

Hansi Zhao, M.D.'s National Provider Identifier (NPI) is 1811347123, issued on Jun 16, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Hansi Zhao, M.D. located?

The NPPES record lists a practice address at 5555 W Las Positas Blvd, Pleasanton, CA, 94588. Phone: (925) 847-3000. Providers update this record themselves, so call before visiting.

How can I verify Hansi Zhao, M.D.'s license?

NPPES lists California license number A170229, 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.

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.