Gregory Ohanessian, PT, DPT
NPI 1306139209 · Physical Therapist · Portola Valley, CA
Enrolled with Medicare as Practitioner - Physical Therapist in Private Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Ohanessian, PT, DPT is a Physical Therapist provider in Portola Valley, CA (NPI 1306139209).
Provider details
- NPI number
- 1306139209
- Entity type
- Individual
- Primary specialty
- Physical TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- PT, DPT
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
- Physical Therapist225100000X
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-05-25
- Last updated
- 2025-03-06
- Certified
- 2025-03-06
Frequently asked questions
- What is Gregory Ohanessian's NPI number?
- Gregory Ohanessian's National Provider Identifier (NPI) is 1306139209, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Ohanessian's specialty?
- Gregory Ohanessian is listed in the NPPES registry with a primary specialty of Physical Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Gregory Ohanessian located?
- Gregory Ohanessian's practice location on file with NPPES is 150 Portola Rd, Portola Valley, CA 94028-7852.
- What is Gregory Ohanessian's phone number?
- The practice phone number listed in the NPPES registry for Gregory Ohanessian is (650) 851-1145.
- Does Gregory Ohanessian accept Medicare?
- Gregory Ohanessian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Ohanessian's NPI active?
- Yes — Gregory Ohanessian's NPI (1306139209) is active in the NPPES registry as of the last update on 2025-03-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.