Sean I-Hsin Tsai, D.O.
Family Medicine Physician · South Pasadena, CA
Sean I-Hsin Tsai, D.O. is a family medicine physician with a practice address in South Pasadena, California, and NPI 1932130697, issued on Jul 5, 2006. Check the license (California 20A7930, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Sean I-Hsin Tsai
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20A7930 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1108 Fremont Ave, South Pasadena, CA 91030
- Phone
- (626) 793-0660
- Enumerated
- Jul 5, 2006
- Record last updated
- Jan 2, 2026
- Fax
- (626) 793-0660
- Medicare enrollment
- Enrolled (PECOS I20050527000340); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Verify Sean I-Hsin Tsai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A7930Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Sean I-Hsin Tsai among 17,133 family medicine physician records in California
Sean I-Hsin Tsai, D.O. is one of 17,133 family 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 not. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileNo · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2000 · median 2005 among the 10,652 with a school on file
- Record last updated2026 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Family Medicine Physician providers in California
There are 17,133 family medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 17,133 in California → Every provider in South Pasadena → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Gary Seto, M.D.South Pasadena, CA 910301871599241
- John Shieh, M.D.South Pasadena, CA 910301144468240
- Jossalyn Emslie, M.D.Sierra Madre, CA 910241013913508
- Arbi Ghazarian, M.D.Montrose, CA 910201992773253
- Steven Kamajian, D.OMontrose, CA 910201295703320
- Donald Plance, DOMontrose, CA 910201942318134
- Faisal Uraizee, MDMontrose, CA 910201295392686
- Akram Uraizee, MDMontrose, CA 910201033672357
Common questions
What is Sean I-Hsin Tsai, D.O.'s NPI number?
Sean I-Hsin Tsai, D.O.'s National Provider Identifier (NPI) is 1932130697, issued on Jul 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sean I-Hsin Tsai, D.O. located?
The NPPES record lists a practice address at 1108 Fremont Ave, South Pasadena, CA, 91030. Phone: (626) 793-0660. Providers update this record themselves, so call before visiting.
How can I verify Sean I-Hsin Tsai, D.O.'s license?
NPPES lists California license number 20A7930, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.