Gregory Tam, DPT
Physical Therapist · Livermore, CA
Gregory Tam, DPT is a physical therapist with a practice address in Livermore, California, and NPI 1215605365, issued on Sep 2, 2021. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregory Tam
- Credential
- DPT
- Primary taxonomy
- Physical Therapist 225100000X
- Practice location
- 2492 Nissen Dr, Livermore, CA 94551
- Phone
- (925) 980-8130
- Enumerated
- Sep 2, 2021
- Record last updated
- Sep 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20220820000282); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physical therapist records → All 22,531 in California → Look up another NPI →
Also registered at 2492 Nissen Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christina Ashby, OTR/LOccupational Therapist1134697782
- Yi-An HouPhysical Therapist1528876463
- Nicole Larson, DPTPhysical Therapist1821566530
- Derrek Lee, DPTPhysical Therapist1417882515
Verify Gregory Tam in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 93.3 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Lafayette Physical Therapy IncLafayette, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Tam among 22,531 physical therapist records in California
Gregory Tam, DPT is one of 22,531 physical therapist records with a practice address in California. 32% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 73% of them.
- NPI issued2021 · 73% of these records are older, 22% newer
- In a Medicare fileYes · 32% of these records are
- In the CMS Doctors and Clinicians fileYes · 34% of these records are
- Graduated2021 · median 2017 among the 7,751 with a school on file
- Record last updated2021 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225100000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
30 physical therapist records list a practice address in Livermore
They are 30 of the 994 NPPES records with a practice address in Livermore, and 22,531 physical therapist records in California.
All 22,531 in California → Every provider in Livermore → Physical Therapist nationwide →
The 8 physical therapist records with the nearest ZIP codes
- Patrick Cahill, PTLivermore, CA 945511497822803
- Sydney ClarkLivermore, CA 945511356632848
- Kelli Davis, P.T.Livermore, CA 945511316957566
- Yi-An HouLivermore, CA 945511528876463
- Alexa Hukari, PTLivermore, CA 945511376841718
- Nicole Larson, DPTLivermore, CA 945511821566530
- Eric Lee, PT, DPTLivermore, CA 945511477211308
- Derrek Lee, DPTLivermore, CA 945511417882515
Common questions
What is Gregory Tam, DPT's NPI number?
Gregory Tam, DPT's National Provider Identifier (NPI) is 1215605365, issued on Sep 2, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Tam, DPT located?
The NPPES record lists a practice address at 2492 Nissen Dr, Livermore, CA, 94551. Phone: (925) 980-8130. Providers update this record themselves, so call before visiting.
How can I verify Gregory Tam, DPT's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
What is Gregory Tam, DPT's MIPS final score?
The 2023 MIPS final score is 93.3 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.