Cathy Mei Tsin, MD
Pediatric Rheumatology Physician · San Antonio, TX
Cathy Mei Tsin, MD is a pediatric rheumatology physician with a practice address in San Antonio, Texas, and NPI 1275920092, issued on Apr 20, 2015. Check the license (Texas W1516, as entered in NPPES) on the Texas Medical Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Cathy Mei Tsin
- Credential
- MD
- Primary taxonomy
- Pediatric Rheumatology Physician 2080P0216X
- License numbers
- W1516 TX
A168568 CA
Self-reported in NPPES; status is on the state search - Practice location
- 333 N Santa Rosa, San Antonio, TX 78207
- Phone
- (210) 704-3030
- Enumerated
- Apr 20, 2015
- Record last updated
- Oct 1, 2025
- Medicare enrollment
- Enrolled (PECOS I20251013003882); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest pediatric rheumatology physician records → All 40 in Texas → Look up another NPI →
Also registered at 333 N Santa Rosa
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sachin Abraham, DOStudent in an Organized Health Care Education/Training Program1700671559
- Asmaa Abu Maziad, MDPediatric Nephrology Physician1922394139
- Jose Aceves, MDNeurology with Special Qualifications in Child Neurology Physician1275544207
- Analyssa AcostaPhysician Assistant1497578611
- Sheikh Ahmed, MDPediatric Critical Care Medicine Physician1265541361
- Adrianna AlanizStudent in an Organized Health Care Education/Training Program1841137569
Verify Cathy Mei Tsin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license W1516Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Cathy Mei Tsin among 40 pediatric rheumatology physician records in Texas
Cathy Mei Tsin, MD is one of 40 pediatric rheumatology physician records with a practice address in Texas. 58% 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 2015, is newer than 70% of them.
- NPI issued2015 · 70% of these records are older, 23% newer
- In a Medicare fileNo · 58% of these records are
- In the CMS Doctors and Clinicians fileYes · 18% of these records are
- Record last updated2025 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0216X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Rheumatology Physician providers in Texas
There are 40 pediatric rheumatology physician records in Texas. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 40 in Texas → Every provider in San Antonio → Pediatric Rheumatology Physician nationwide →
The 8 pediatric rheumatology physician records with the nearest ZIP codes
- Mark Gorelik, MDSan Antonio, TX 782071245459551
- Yiressy Pina, MDSan Antonio, TX 782071164982757
- Melissa Mizesko, M.D.Corpus Christi, TX 784111003026139
- Sharanya Joginpalli, MDCedar Park, TX 786131679067441
- David Moser, DOAustin, TX 787231124158928
- Vanessa Munoz Rivera, M.D.Austin, TX 787231396004115
- Janet Orrock, MDAustin, TX 787231144588799
- Rosemary Peterson, MDAustin, TX 787231992124481
Common questions
What is Cathy Mei Tsin, MD's NPI number?
Cathy Mei Tsin, MD's National Provider Identifier (NPI) is 1275920092, issued on Apr 20, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Cathy Mei Tsin, MD located?
The NPPES record lists a practice address at 333 N Santa Rosa, San Antonio, TX, 78207. Phone: (210) 704-3030. Providers update this record themselves, so call before visiting.
How can I verify Cathy Mei Tsin, MD's license?
NPPES lists Texas license number W1516, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.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.