NPPES file of Aug 9, 2026

Sarah Choi, DO

Hospitalist Physician · San Leandro, CA

Sarah Choi, DO is a hospitalist physician with a practice address in San Leandro, California, and NPI 1861020877, issued on Mar 27, 2020. Check the license (California 20A21039, 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
1861020877
Name
Sarah Choi
Credential
DO
Primary taxonomy
Hospitalist Physician 208M00000X
License number
20A21039 CA
Self-reported in NPPES; status is on the state search
Practice location
2500 Merced St, San Leandro, CA 94577
Phone
(503) 413-7074
Enumerated
Mar 27, 2020
Record last updated
Sep 26, 2023
Medicare enrollment
Enrolled (PECOS I20230920002327); accepts Medicare assignment
Medical or professional school
Touro Un College Of Osteopathic Medicine, Vallejo, 2020
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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Also registered at 2500 Merced St

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

  1. Rabiatu Abdullah, M.D.Emergency Medicine Physician1497833248
  2. Scott Abramson, M.D.Neurology Physician1891873667
  3. Jayaprada Achanta, M.D.Anesthesiology Physician1053463851
  4. Kristi Adachi, PHARMDPharmacist1396456737
  5. Mary Grace Aguayo, CRTCertified Respiratory Therapist1467923730
  6. Jatinder AhluwaliaPharmacist1508391483

Verify Sarah Choi in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A21039
    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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26% more Medicare Part D claims than the average hospitalist physician in 2024

654 Medicare Part D claims for 193 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 27 claims were for opioids.

  1. Sarah Choi654
  2. Specialty average521

Most prescribed

  1. Furosemide38 claims
  2. Metoprolol Tartrate29 claims
  3. Omeprazole25 claims
  4. Atorvastatin Calcium22 claims
  5. Potassium Chloride22 claims
  6. Albuterol Sulfate Hfa20 claims

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.

Bills Medicare through one group practice

  1. Permanente Medical Group IncSan Leandro, CA

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

Sarah Choi among 3,099 hospitalist physician records in California

Sarah Choi, DO is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 85% of them.

  • NPI issued2020 · 85% of these records are older, 10% newer
  • In a Medicare fileYes · 90% of these records are
  • In the CMS Doctors and Clinicians fileYes · 81% of these records are
  • Graduated2020 · median 2010 among the 2,505 with a school on file
  • Record last updated2023 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hospitalist Physician providers in California

There are 3,099 hospitalist physician records in California.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Mayank AminSan Leandro, CA 945771891180972
  2. Abida Azim, M.D.San Leandro, CA 945771447338298
  3. James Chang, M.D.San Leandro, CA 945771801158332
  4. Rose Eng, M.D.San Leandro, CA 945771881744605
  5. Michael Esteban, M.D.San Leandro, CA 945771821176637
  6. Christopher Gee, M.D.San Leandro, CA 945771902984727
  7. Jena Joy, MDSan Leandro, CA 945771992071229
  8. Trupti Mehta, M.D.San Leandro, CA 945771609954460

Common questions

What is Sarah Choi, DO's NPI number?

Sarah Choi, DO's National Provider Identifier (NPI) is 1861020877, issued on Mar 27, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Sarah Choi, DO located?

The NPPES record lists a practice address at 2500 Merced St, San Leandro, CA, 94577. Phone: (503) 413-7074. Providers update this record themselves, so call before visiting.

How can I verify Sarah Choi, DO's license?

NPPES lists California license number 20A21039, 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 Sarah Choi, DO prescribe under Medicare Part D?

In 2024, Sarah Choi, DO had 654 Medicare Part D claims for 193 beneficiaries; the average among hospitalist physician prescribers was 521. 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.