NPPES file of Aug 9, 2026

Michael Katz, M.D.

Maternal & Fetal Medicine Physician · San Francisco, CA

Michael Katz, M.D. is a maternal & fetal medicine physician with a practice address in San Francisco, California, and NPI 1477574846, issued on Jul 21, 2006. Check the license (California 426920, 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
1477574846
Name
Michael Katz
Credential
M.D.
Primary taxonomy
Maternal & Fetal Medicine Physician 207VM0101X
License number
426920 CA
Self-reported in NPPES; status is on the state search
Practice location
1100 Van Ness Ave FL 4, San Francisco, CA 94109
Phone
(415) 600-6400
Enumerated
Jul 21, 2006
Record last updated
Oct 18, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(415) 369-1384
Medicare enrollment
Enrolled (PECOS I20051007000640); accepts Medicare assignment
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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8 nearest maternal & fetal medicine physician records → All 343 in California → Look up another NPI →

Also registered at 1100 Van Ness Ave FL 4

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

  1. Gabriella Brown, MS, LCGCGenetic Counselor (M.S.)1326026873
  2. Anna Buchsbaum, M.D.Obstetrics & Gynecology Physician1689806317
  3. Elena Burbridge, RD, CDERegistered Dietitian1841804259
  4. John Chan, MDGynecologic Oncology Physician1962596551
  5. Lejla Delic, M.D.Gynecologic Oncology Physician1063615185
  6. Jessica Fisher, FNP-CFamily Nurse Practitioner1326875550

Verify Michael Katz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 426920    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. Sutter Bay Medical FoundationSan Francisco, CA

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

Michael Katz among 343 maternal & fetal medicine physician records in California

Michael Katz, M.D. is one of 343 maternal & fetal medicine physician records with a practice address in California. 61% 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 6% of them.

  • NPI issued2006 · 6% of these records are older, 52% newer
  • In a Medicare fileYes · 61% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated1969 · median 2003 among the 181 with a school on file
  • Record last updated2019 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VM0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Maternal & Fetal Medicine Physician providers in California

There are 343 maternal & fetal medicine physician records in California.

All 343 in California → Every provider in San Francisco → Maternal & Fetal Medicine Physician nationwide →

The 8 maternal & fetal medicine physician records with the nearest ZIP codes

  1. Lena Kim, MDSan Francisco, CA 941091700964566
  2. Denise Main, M.D.San Francisco, CA 941091356363154
  3. Dana Myers, MDSan Francisco, CA 941091679736227
  4. Kate Pettit, M.D.San Francisco, CA 941091972735991
  5. Julie Romero, M.D.San Francisco, CA 941091780819128
  6. Kataneh Salari, MDSan Francisco, CA 941091427211374
  7. Melinda Scully, M.D.San Francisco, CA 941091205854049
  8. Brian Shaffer, MDSan Francisco, CA 941091245296052

Common questions

What is Michael Katz, M.D.'s NPI number?

Michael Katz, M.D.'s National Provider Identifier (NPI) is 1477574846, issued on Jul 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael Katz, M.D. located?

The NPPES record lists a practice address at 1100 Van Ness Ave FL 4, San Francisco, CA, 94109. Phone: (415) 600-6400. Providers update this record themselves, so call before visiting.

How can I verify Michael Katz, M.D.'s license?

NPPES lists California license number 426920, 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.