NPPES file of Aug 9, 2026

Sarah Ann Markham, M.D.

Student in an Organized Health Care Education/Training Program · Oakland, CA

Sarah Ann Markham, M.D. is a student in an organized health care education/training program with a practice address in Oakland, California, and NPI 1013273473, issued on Apr 10, 2012. Check the license 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
1013273473
Name
Sarah Ann Markham
Credential
M.D.
Primary taxonomy
Student in an Organized Health Care Education/Training Program 390200000X
Practice location
1411 E 31St St, Oakland, CA 94602
Phone
(510) 437-4965
Enumerated
Apr 10, 2012
Record last updated
Nov 4, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20181112000651); accepts Medicare assignment
Medical or professional school
Pennsylvania State University College Of Medicine, 2012
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 1411 E 31St St

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

  1. Shahram Aarabi, MDVascular Surgery Physician1972700458
  2. Marwan Abdelrahim, M.D.Internal Medicine Physician1538693650
  3. Oluwayemisi Adejumo, M.D.Interventional Cardiology Physician1699031179
  4. Tessa Adler, MDEmergency Medicine Physician1558065524
  5. Omonivie Agboghidi, MDStudent in an Organized Health Care Education/Training Program1104576065
  6. Ruta AionoLactation Consultant (Non-RN)1518833375

Verify Sarah Ann Markham in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck 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
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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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42% fewer Medicare Part D claims than the average student in an organized health care education/training program in 2024

108 Medicare Part D claims for 59 beneficiaries, against an average of 185 among the 59,748 providers of this specialty who prescribed in Part D. 42 claims were for opioids.

  1. Sarah Markham108
  2. Specialty average185

Most prescribed

  1. Oxycodone Hcl37 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. Kaiser Foundation Health Plan OF The NorthwestSalem, OR

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

Sarah Ann Markham among 40,652 student in an organized health care education/training program records in California

Sarah Ann Markham, M.D. is one of 40,652 student in an organized health care education/training program records with a practice address in California. 16% 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 5% of them.

  • NPI issued2012 · 5% of these records are older, 93% newer
  • In a Medicare fileYes · 16% of these records are
  • In the CMS Doctors and Clinicians fileYes · 6% of these records are
  • Graduated2012 · median 2017 among the 2,409 with a school on file
  • Record last updated2015 · 26% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 390200000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,419 student in an organized health care education/training program records list a practice address in Oakland

They are 1,419 of the 18,558 NPPES records with a practice address in Oakland, and 40,652 student in an organized health care education/training program records in California.

The 8 student in an organized health care education/training program records with the nearest ZIP codes

  1. Judith Eliachar, M.A.Oakland, CA 946021578606315
  2. Amanda Green, MDOakland, CA 946021679832265
  3. Dat Ha, D.O.Oakland, CA 946021972812287
  4. Jose Hernandez, B.A.Oakland, CA 946021104106897
  5. Francisca Maertens, MDOakland, CA 946021205129194
  6. Michael McCarronOakland, CA 946021619275930
  7. Aein Nang, M.D.Oakland, CA 946021821371188
  8. Preeti Nargund, M.B.B.S, M.D.Oakland, CA 946021598919771

Common questions

What is Sarah Ann Markham, M.D.'s NPI number?

Sarah Ann Markham, M.D.'s National Provider Identifier (NPI) is 1013273473, issued on Apr 10, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Sarah Ann Markham, M.D. located?

The NPPES record lists a practice address at 1411 E 31St St, Oakland, CA, 94602. Phone: (510) 437-4965. Providers update this record themselves, so call before visiting.

How can I verify Sarah Ann Markham, M.D.'s license?

Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Sarah Ann Markham, M.D. prescribe under Medicare Part D?

In 2024, Sarah Ann Markham, M.D. had 108 Medicare Part D claims for 59 beneficiaries; the average among student in an organized health care education/training program prescribers was 185. 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.