NPPES file of Aug 9, 2026

Catherine S. Montemayor

Family Nurse Practitioner · San Francisco, CA

Catherine S. Montemayor is a family nurse practitioner with a practice address in San Francisco, California, and NPI 1346513611, issued on Feb 17, 2012. Check the license (California 95002351, as entered in NPPES) with the California board that licenses this profession; 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
1346513611
Name
Catherine S. Montemayor
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
95002351 CA
Self-reported in NPPES; status is on the state search
Practice location
4150 Clement St, San Francisco, CA 94121
Phone
(707) 635-1600
Enumerated
Feb 17, 2012
Record last updated
Oct 9, 2022
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 4150 Clement St

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

  1. Samantha Abram, BAPsychologist1326540436
  2. Gary Abrams, M.D.Physical Medicine & Rehabilitation Physician1346213246
  3. Anna Abramson, M.D.Internal Medicine Physician1346424785
  4. Alison Acerra, MS, RDRegistered Dietitian1992726848
  5. Sharon AdelsonCounselor1932467271
  6. Gary Agcaoili, C.T.R.SRecreation Therapist1649284019

Verify Catherine S. Montemayor in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 95002351
    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
Find 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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99% fewer Medicare Part D claims than the average family nurse practitioner in 2024

14 Medicare Part D claims, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Catherine Montemayor14
  2. Specialty average1,305

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.

Catherine S. Montemayor among 16,966 family nurse practitioner records in California

Catherine S. Montemayor is one of 16,966 family nurse practitioner 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 2012, is newer than 21% of them.

  • NPI issued2012 · 21% of these records are older, 76% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 40% of these records are
  • Record last updated2022 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

662 family nurse practitioner records list a practice address in San Francisco

They are 662 of the 38,143 NPPES records with a practice address in San Francisco, and 16,966 family nurse practitioner records in California.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Susan Ammon, NPSan Francisco, CA 941211831190735
  2. Nancy Denise Bartlett, MSN FNPBCSan Francisco, CA 941211619935202
  3. Nancy Brana, NURSE PRACTITIONERSan Francisco, CA 941211821057712
  4. Cynthia Burgess-Cosbey, N.P., M.S.N., R.N.San Francisco, CA 941211487671459
  5. Sarah Choi, N. P.San Francisco, CA 941211013101088
  6. Elaine Der, N.P.San Francisco, CA 941211225070873
  7. Sandra Domeracki, NPSan Francisco, CA 941211275778730
  8. Gay Gilliland, FNPSan Francisco, CA 941211669559381

Common questions

What is Catherine S. Montemayor's NPI number?

Catherine S. Montemayor's National Provider Identifier (NPI) is 1346513611, issued on Feb 17, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Catherine S. Montemayor located?

The NPPES record lists a practice address at 4150 Clement St, San Francisco, CA, 94121. Phone: (707) 635-1600. Providers update this record themselves, so call before visiting.

How can I verify Catherine S. Montemayor's license?

NPPES lists California license number 95002351, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Catherine S. Montemayor prescribe under Medicare Part D?

In 2024, Catherine S. Montemayor had 14 Medicare Part D claims; the average among family nurse practitioner prescribers was 1,305. 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.