NPPES file of Aug 9, 2026

Charles P. Fisher, M.D.

Psychiatry Physician · San Francisco, CA

Charles P. Fisher, M.D. is a psychiatry physician with a practice address in San Francisco, California, and NPI 1427160696, issued on Aug 31, 2006. Check the license (California G25855, 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
1427160696
Name
Charles P. Fisher
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
G25855 CA
Self-reported in NPPES; status is on the state search
Practice location
341 Spruce St, San Francisco, CA 94118
Phone
(415) 922-1920
Enumerated
Aug 31, 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 341 Spruce St

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

  1. Peter Greenberg, MDPsychiatry Physician1093728271
  2. Samuel Judice, M.D.Psychiatry Physician1518295385

Verify Charles P. Fisher in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G25855
    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

19 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Charles Fisher19
  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.

Charles P. Fisher among 8,673 psychiatry physician records in California

Charles P. Fisher, 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. William Anderson, M.D.San Francisco, CA 941181144261322
  2. Peter Banys, M.D., M.SC.San Francisco, CA 941181174520241
  3. Mark Bernstein, M.D.San Francisco, CA 941181184672719
  4. Paul Carlat, MDSan Francisco, CA 941181780697318
  5. Nanette Gartrell, MDSan Francisco, CA 941181023119146
  6. Peter Greenberg, MDSan Francisco, CA 941181093728271
  7. Heidi Hohener, MDSan Francisco, CA 941181154425585
  8. John Koo, MDSan Francisco, CA 941181245289594

Common questions

What is Charles P. Fisher, M.D.'s NPI number?

Charles P. Fisher, M.D.'s National Provider Identifier (NPI) is 1427160696, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Charles P. Fisher, M.D. located?

The NPPES record lists a practice address at 341 Spruce St, San Francisco, CA, 94118. Phone: (415) 922-1920. Providers update this record themselves, so call before visiting.

How can I verify Charles P. Fisher, M.D.'s license?

NPPES lists California license number G25855, 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 Charles P. Fisher, M.D. prescribe under Medicare Part D?

In 2024, Charles P. Fisher, M.D. had 19 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.