NPPES file of Aug 9, 2026

Hannah Harrison Siroker, MD

Emergency Medicine Physician · Oakland, CA

Hannah Harrison Siroker, MD is an emergency medicine physician with a practice address in Oakland, California, and NPI 1710374764, issued on Apr 16, 2015. Check the license (California A147129, 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
1710374764
Name
Hannah Harrison Siroker
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
A147129 CA
Self-reported in NPPES; status is on the state search
Practice location
1411 East 31St Street, Oakland, CA 94602
Phone
(415) 476-9000
Enumerated
Apr 16, 2015
Record last updated
Jul 2, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20210507000281); accepts Medicare assignment
Medical or professional school
University Of California, San Francisco School Of Medicine, 2015
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 East 31St Street

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

  1. Lindsey Deputy, RN, MS, CNSOncology Registered Nurse1215588868
  2. Helen Driscoll, MDInternal Medicine Physician1720168230
  3. Ahmed Elattma, MDStudent in an Organized Health Care Education/Training Program1750141776
  4. Joshua ElyOral and Maxillofacial Surgery (Dentist)1528430121
  5. Linda Engelstad, MDAllergy & Immunology (Internal Medicine) Physician1710997374
  6. Dena Fisher, MSWClinical Social Worker1962685156

Verify Hannah Harrison Siroker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A147129
    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

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52% fewer Medicare Part D claims than the average emergency medicine physician in 2024

108 Medicare Part D claims for 86 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.

  1. Hannah Siroker108
  2. Specialty average226

Most prescribed

  1. Cephalexin12 claims
  2. Doxycycline Hyclate12 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. Usacs Community Emergency Services OF Colorado Inc.Denver, CO

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

Hannah Harrison Siroker among 7,751 emergency medicine physician records in California

Hannah Harrison Siroker, MD is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 72% of them.

  • NPI issued2015 · 72% of these records are older, 25% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2015 · median 2011 among the 4,560 with a school on file
  • Record last updated2019 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

247 emergency medicine physician records list a practice address in Oakland

They are 247 of the 18,558 NPPES records with a practice address in Oakland, and 7,751 emergency medicine physician records in California.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. David English, MDOakland, CA 946021275514325
  2. Bradley Frazee, MDOakland, CA 946021447241765
  3. Jocelyn Freeman, MDOakland, CA 946021194716498
  4. Jared Greenholz, MDOakland, CA 946021417930520
  5. Cherie Hargis, MDOakland, CA 946021821079377
  6. Abraha Kidane, PAOakland, CA 946021942291265
  7. Stephen Miller, MDOakland, CA 946021750363727
  8. Andrew Nothmann, MDOakland, CA 946021518949585

Common questions

What is Hannah Harrison Siroker, MD's NPI number?

Hannah Harrison Siroker, MD's National Provider Identifier (NPI) is 1710374764, issued on Apr 16, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Hannah Harrison Siroker, MD located?

The NPPES record lists a practice address at 1411 East 31St Street, Oakland, CA, 94602. Phone: (415) 476-9000. Providers update this record themselves, so call before visiting.

How can I verify Hannah Harrison Siroker, MD's license?

NPPES lists California license number A147129, 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 Hannah Harrison Siroker, MD prescribe under Medicare Part D?

In 2024, Hannah Harrison Siroker, MD had 108 Medicare Part D claims for 86 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.