Devin Tsai, D.O.
Emergency Medicine Physician · Oakland, CA
Devin Tsai, D.O. is an emergency medicine physician with a practice address in Oakland, California, and NPI 1962609958, issued on Jul 2, 2007. Check the license (California 11450, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Devin Tsai
- Credential
- D.O.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 11450 CA
DO00656 RI
Self-reported in NPPES; status is on the state search - Practice location
- 3600 Broadway, Oakland, CA 94611
- Phone
- (510) 882-7242
- Enumerated
- Jul 2, 2007
- Record last updated
- May 8, 2023
- Medicaid IDs
- 110085510A MA
DT81045 RI - Medicare enrollment
- Enrolled (PECOS I20160601001604); accepts Medicare assignment
- Medical or professional school
- New York College Of Osteo Medicine Of New York Institute Of Technology, 2007
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 3600 Broadway
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dann August AbenojarCritical Care Registered Respiratory Therapist1316411242
- Jacob AbjelinaStudent in an Organized Health Care Education/Training Program1184474850
- Basma Al Bast, MDCardiovascular Disease Physician1184145682
- Danielle AllenSpeech-Language Pathologist1154838118
- Kritika Amanjee, MD, MBAStudent in an Organized Health Care Education/Training Program1962192666
- Eduardo AmarCertified Respiratory Therapist1811460546
Verify Devin Tsai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 11450Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
40% fewer Medicare Part D claims than the average emergency medicine physician in 2024
135 Medicare Part D claims for 95 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 18 claims were for opioids.
Most prescribed
- Prednisone14 claims
- Hydrocodone-Acetaminophen13 claims
- Cefadroxil12 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
- Permanente Medical Group IncOakland, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Devin Tsai among 7,751 emergency medicine physician records in California
Devin Tsai, D.O. 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 2007, is newer than 40% of them.
- NPI issued2007 · 40% of these records are older, 50% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2007 · 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.
All 7,751 in California → Every provider in Oakland → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- David Doostan, MDOakland, CA 946111174564819
- Mark GoldinOakland, CA 946111205834751
- Anjali Gupta, MDOakland, CA 946111902837719
- Jennifer Harris, MDOakland, CA 946111003912015
- Herbert Hern, MDOakland, CA 946111154303121
- Jennifer Johnson, MDOakland, CA 946111912001157
- Zeenat Khan, MDOakland, CA 946111417048307
- Odile Leland-Arizmendi, M.D.Oakland, CA 946111548361926
Common questions
What is Devin Tsai, D.O.'s NPI number?
Devin Tsai, D.O.'s National Provider Identifier (NPI) is 1962609958, issued on Jul 2, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Devin Tsai, D.O. located?
The NPPES record lists a practice address at 3600 Broadway, Oakland, CA, 94611. Phone: (510) 882-7242. Providers update this record themselves, so call before visiting.
How can I verify Devin Tsai, D.O.'s license?
NPPES lists California license number 11450, 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 Devin Tsai, D.O. prescribe under Medicare Part D?
In 2024, Devin Tsai, D.O. had 135 Medicare Part D claims for 95 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.