NPPES file of Aug 9, 2026

Hong Zhang, M.D. M.P.H. MS

Occupational Medicine Physician · Oakland, CA

Hong Zhang, M.D. M.P.H. MS is an occupational medicine physician with a practice address in Oakland, California, and NPI 1003931783, issued on Mar 20, 2007. Check the license (California A86259, 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
1003931783
Name
Hong Zhang
Credential
M.D. M.P.H. MS
Primary taxonomy
Occupational Medicine Physician 2083X0100X
License number
A86259 CA
Self-reported in NPPES; status is on the state search
Practice location
3232 Elm St, Oakland, CA 94609
Phone
(510) 735-5998
Enumerated
Mar 20, 2007
Record last updated
Aug 12, 2007 (not updated in 19 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest occupational medicine physician records → All 415 in California → Look up another NPI →

Also registered at 3232 Elm St

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

  1. Urania Arauz, NPOccupational Health Nurse Practitioner1922203694
  2. Adelina Gage-Kelly, ANPOccupational Health Nurse Practitioner1306081435
  3. Deborah Holdeman, FNPOccupational Health Nurse Practitioner1174728083

Verify Hong Zhang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A86259    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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Industry payments in 2024: $243.67

2 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 193 providers of this specialty with any payment received $2,381.67 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Hong Zhang$243.67
  2. Specialty average$2,381.67

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

Hong Zhang among 415 occupational medicine physician records in California

Hong Zhang, M.D. M.P.H. MS is one of 415 occupational medicine physician records with a practice address in California. 30% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 43% of them.

  • NPI issued2007 · 43% of these records are older, 31% newer
  • In a Medicare fileYes · 30% of these records are
  • In the CMS Doctors and Clinicians fileNo · 12% of these records are
  • Record last updated2007 · 75% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2083X0100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Occupational Medicine Physician providers in California

There are 415 occupational medicine physician records in California.

All 415 in California → Every provider in Oakland → Occupational Medicine Physician nationwide →

The 8 occupational medicine physician records with the nearest ZIP codes

  1. Dinesh Govindarao, M.D.Oakland, CA 946071932319142
  2. William Hopper, MDOakland, CA 946071447439765
  3. David Jourgensen, M.D.Oakland, CA 946071073638243
  4. Charles Laroche, MDOakland, CA 946111679623474
  5. Ranyelle RamosOakland, CA 946071417116294
  6. Elyssa Wasserberg, DCOakland, CA 946071275729360
  7. Douglas Benner, MDOakland, CA 946121548346075
  8. Hui HanOakland, CA 946121386809093

Common questions

What is Hong Zhang, M.D. M.P.H. MS's NPI number?

Hong Zhang, M.D. M.P.H. MS's National Provider Identifier (NPI) is 1003931783, issued on Mar 20, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Hong Zhang, M.D. M.P.H. MS located?

The NPPES record lists a practice address at 3232 Elm St, Oakland, CA, 94609. Phone: (510) 735-5998. Providers update this record themselves, so call before visiting.

How can I verify Hong Zhang, M.D. M.P.H. MS's license?

NPPES lists California license number A86259, 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.