NPPES file of Aug 9, 2026

Chelsea Akemi Tafoya, M.D.

Emergency Medicine Physician · Oakland, CA

Chelsea Akemi Tafoya, M.D. is an emergency medicine physician with a practice address in Oakland, California, and NPI 1760915581, issued on Apr 8, 2017. Check the license (California A163026, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1760915581
Name
Chelsea Akemi Tafoya
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
A163026 CA
Self-reported in NPPES; status is on the state search
Practice location
1411 E 31St St, Oakland, CA 94602
Phone
(510) 437-4564
Enumerated
Apr 8, 2017
Record last updated
Oct 27, 2023
Medicare enrollment
Enrolled (PECOS I20210707002037); accepts Medicare assignment
Medical or professional school
University Of Michigan Medical School, 2017
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 Chelsea Akemi Tafoya in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A163026
    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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22% fewer Medicare Part D claims than the average emergency medicine physician in 2024

177 Medicare Part D claims for 132 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 20 claims were for opioids.

  1. Chelsea Tafoya177
  2. Specialty average226

Most prescribed

  1. Oxycodone Hcl16 claims
  2. Cefadroxil14 claims
  3. Ibuprofen14 claims
  4. Ondansetron Odt13 claims
  5. Cefpodoxime Proxetil11 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 94.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score76.7
  2. Costout of 100 · 30%97.1
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Southern California Permanente Medical GroupSan Diego, CA

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

Chelsea Akemi Tafoya among 7,751 emergency medicine physician records in California

Chelsea Akemi Tafoya, M.D. 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 2017, is newer than 78% of them.

  • NPI issued2017 · 78% of these records are older, 19% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2017 · median 2011 among the 4,560 with a school on file
  • Record last updated2023 · 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 Chelsea Akemi Tafoya, M.D.'s NPI number?

Chelsea Akemi Tafoya, M.D.'s National Provider Identifier (NPI) is 1760915581, issued on Apr 8, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Chelsea Akemi Tafoya, M.D. located?

The NPPES record lists a practice address at 1411 E 31St St, Oakland, CA, 94602. Phone: (510) 437-4564. Providers update this record themselves, so call before visiting.

How can I verify Chelsea Akemi Tafoya, M.D.'s license?

NPPES lists California license number A163026, 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 Chelsea Akemi Tafoya, M.D. prescribe under Medicare Part D?

In 2024, Chelsea Akemi Tafoya, M.D. had 177 Medicare Part D claims for 132 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Chelsea Akemi Tafoya, M.D.'s MIPS final score?

The 2023 MIPS final score is 94.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.