NPPES file of Aug 9, 2026

Mireen Quizon Delos Santos, N.P.

Family Nurse Practitioner · San Francisco, CA

Mireen Quizon Delos Santos, N.P. is a family nurse practitioner with a practice address in San Francisco, California, and NPI 1538404629, issued on Nov 30, 2012. Check the license (California 23777, 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
1538404629
Name
Mireen Quizon Delos Santos
Credential
N.P.
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
23777 CA
Self-reported in NPPES; status is on the state search
Practice location
240 King St Ste G2, San Francisco, CA 94107
Phone
(800) 972-5547
Enumerated
Nov 30, 2012
Record last updated
May 29, 2020 (not updated in 6 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.
Download card Updates feed

Also registered at 240 King St Ste G2

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

  1. Tamanna Desai, FNP-CFamily Nurse Practitioner1538548771
  2. Justine Macasadia, PA-CPhysician Assistant1770157844
  3. Maria-Kristina Manigbas, PA-CPhysician Assistant1871627877
  4. Sanam Mobin, NPFamily Nurse Practitioner1952822439

Verify Mireen Quizon Delos Santos 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 23777
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

97% fewer Medicare Part D claims than the average family nurse practitioner in 2024

45 Medicare Part D claims for 34 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Mireen Delos Santos45
  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.

Mireen Quizon Delos Santos among 16,966 family nurse practitioner records in California

Mireen Quizon Delos Santos, N.P. 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 updated2020 · 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. Nancy Cherry, FNP-BC, CNMSan Francisco, CA 941071831340181
  2. Tamanna Desai, FNP-CSan Francisco, CA 941071538548771
  3. Sujan Gautam, NPSan Francisco, CA 941071790499630
  4. Traci Ginsberg, FNP-BCSan Francisco, CA 941071588268528
  5. Elizabeth Marlow, PHD, C-FNPSan Francisco, CA 941071003057365
  6. Sanam Mobin, NPSan Francisco, CA 941071952822439
  7. Corinna Neustaetter, FNPSan Francisco, CA 941071518064633
  8. Tessa Rubin, MS, RN, NP, FNP-BCSan Francisco, CA 941071790388486

Common questions

What is Mireen Quizon Delos Santos, N.P.'s NPI number?

Mireen Quizon Delos Santos, N.P.'s National Provider Identifier (NPI) is 1538404629, issued on Nov 30, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Mireen Quizon Delos Santos, N.P. located?

The NPPES record lists a practice address at 240 King St Ste G2, San Francisco, CA, 94107. Phone: (800) 972-5547. Providers update this record themselves, so call before visiting.

How can I verify Mireen Quizon Delos Santos, N.P.'s license?

NPPES lists California license number 23777, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Mireen Quizon Delos Santos, N.P. prescribe under Medicare Part D?

In 2024, Mireen Quizon Delos Santos, N.P. had 45 Medicare Part D claims for 34 beneficiaries; 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.