NPPES file of Aug 9, 2026

William H. Bresnick, M.D.

Psychiatry Physician · San Francisco, CA

William H. Bresnick, M.D. is a psychiatry physician with a practice address in San Francisco, California, and NPI 1538227574, issued on Dec 4, 2006. Check the license (California G78434, 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
1538227574
Name
William H. Bresnick
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
G78434 CA
Self-reported in NPPES; status is on the state search
Practice location
250 Montgomery St, San Francisco, CA 94104
Phone
(415) 391-1144
Enumerated
Dec 4, 2006
Record last updated
Jul 8, 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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Also registered at 250 Montgomery St

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

  1. Chady Wonson, D.C., L.AC.Acupuncturist1396812707

Verify William H. Bresnick in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G78434
    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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98% fewer Medicare Part D claims than the average psychiatry physician in 2024

20 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. William Bresnick20
  2. Specialty average1,000

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.

William H. Bresnick among 8,673 psychiatry physician records in California

William H. Bresnick, M.D. is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 67% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 38% of these records are
  • Record last updated2007 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

763 psychiatry physician records list a practice address in San Francisco

They are 763 of the 38,143 NPPES records with a practice address in San Francisco, and 8,673 psychiatry physician records in California.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Ronald Albucher, M.D.San Francisco, CA 941041174632806
  2. James Delano, M.D.San Francisco, CA 941041285735472
  3. Francisco Gonzalez, M.D.San Francisco, CA 941041518023266
  4. Karin Hastik, M.D.San Francisco, CA 941041457401002
  5. Marc JacobsSan Francisco, CA 941041669581336
  6. Vijay Jethanandani, M.D.San Francisco, CA 941041932187143
  7. Elaine Liu, MDSan Francisco, CA 941041093977944
  8. Lawrence Lurie, M.D.San Francisco, CA 941041053582452

Common questions

What is William H. Bresnick, M.D.'s NPI number?

William H. Bresnick, M.D.'s National Provider Identifier (NPI) is 1538227574, issued on Dec 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William H. Bresnick, M.D. located?

The NPPES record lists a practice address at 250 Montgomery St, San Francisco, CA, 94104. Phone: (415) 391-1144. Providers update this record themselves, so call before visiting.

How can I verify William H. Bresnick, M.D.'s license?

NPPES lists California license number G78434, 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 William H. Bresnick, M.D. prescribe under Medicare Part D?

In 2024, William H. Bresnick, M.D. had 20 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. 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.