Iris Tso, PA-C
Physician Assistant · Stanford, CA
Iris Tso, PA-C is a physician assistant with a practice address in Stanford, California, and NPI 1487427621, issued on Oct 31, 2023. Check the license (California 64989, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Iris Tso
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 64989 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Pasteur Dr, Stanford, CA 94305
- Phone
- (506) 723-4000
- Enumerated
- Oct 31, 2023
- Record last updated
- Jan 29, 2025
- Medicare enrollment
- Enrolled (PECOS I20241205000799); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 300 Pasteur Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Iris Tso in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 64989Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Sharpcare Medical Group ApcCoronado, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Iris Tso among 14,451 physician assistant records in California
Iris Tso, PA-C is one of 14,451 physician assistant records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 80% of them.
- NPI issued2023 · 80% of these records are older, 13% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2024 · median 2018 among the 7,214 with a school on file
- Record last updated2025 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
480 physician assistant records list a practice address in Stanford
They are 480 of the 5,606 NPPES records with a practice address in Stanford, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Stanford → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Jaclyn Bilello, PA-CStanford, CA 943051285695445
- Deanna Cully, PA-CStanford, CA 943051912967779
- Deborah Espinoza, PA-CStanford, CA 943051558361733
- Lorin Ferguson, PA-CStanford, CA 943051912972340
- John Laurence, PA-CStanford, CA 943051568445070
- David Miller, PA-CStanford, CA 943051538140413
- Irina Penev, PA-CStanford, CA 943051851361646
- Pamela Piacente-Rhodes, PA-CStanford, CA 943051598735227
Common questions
What is Iris Tso, PA-C's NPI number?
Iris Tso, PA-C's National Provider Identifier (NPI) is 1487427621, issued on Oct 31, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Iris Tso, PA-C located?
The NPPES record lists a practice address at 300 Pasteur Dr, Stanford, CA, 94305. Phone: (506) 723-4000. Providers update this record themselves, so call before visiting.
How can I verify Iris Tso, PA-C's license?
NPPES lists California license number 64989, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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.