Gregory Tam, DPT
NPI 1215605365 · Physical Therapist · Livermore, CA
Enrolled with Medicare as Practitioner - Physical Therapist in Private Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Tam, DPT is a Physical Therapist provider in Livermore, CA (NPI 1215605365).
Provider details
- NPI number
- 1215605365
- Entity type
- Individual
- Primary specialty
- Physical TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- DPT
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
4 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
5,614 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Therapy Procedure Using Functional Activities97530 | 3,193 | $38 |
| Electrical Stimulation (unattended), to One Or More Areas for Indication(s) Other Than Wound Care, As Part of a Therapy Plan of CareG0283 | 875 | $10 |
| Therapy Procedure in a Group Setting97150 | 414 | $16 |
| Training for Self-Care Or Home Management, Each 15 Minutes97535 | 310 | $30 |
| Therapy Procedure to Re-Educate Brain-To-Nerve-To-Muscle Function, Each 15 Minutes97112 | 215 | $32 |
| Therapy Procedure Using Manual Technique, Each 15 Minutes97140 | 175 | $23 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-09-02
- Last updated
- 2021-09-02
- Certified
- 2021-09-02
Frequently asked questions
- What is Gregory Tam's NPI number?
- Gregory Tam's National Provider Identifier (NPI) is 1215605365, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Tam's specialty?
- Gregory Tam is listed in the NPPES registry with a primary specialty of Physical Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Gregory Tam located?
- Gregory Tam's practice location on file with NPPES is 2492 Nissen Dr, Livermore, CA 94551-7704.
- What is Gregory Tam's phone number?
- The practice phone number listed in the NPPES registry for Gregory Tam is (925) 980-8130.
- Does Gregory Tam accept Medicare?
- Gregory Tam is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Tam's NPI active?
- Yes — Gregory Tam's NPI (1215605365) is active in the NPPES registry as of the last update on 2021-09-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.