Gregory Masters, MD
NPI 1689750515 · Orthopaedic Surgery Physician · Santa Clara, CA
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Masters, MD is a Orthopaedic Surgery Physician provider in Santa Clara, CA (NPI 1689750515).
Provider details
- NPI number
- 1689750515
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A74016 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% 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
- 2006-10-31
- Last updated
- 2021-12-13
Frequently asked questions
- What is Gregory Masters's NPI number?
- Gregory Masters's National Provider Identifier (NPI) is 1689750515, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Masters's specialty?
- Gregory Masters is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Masters located?
- Gregory Masters's practice location on file with NPPES is 710 Lawrence Expy, Santa Clara, CA 95051-5173.
- What is Gregory Masters's phone number?
- The practice phone number listed in the NPPES registry for Gregory Masters is (408) 236-6400.
- Does Gregory Masters accept Medicare?
- Gregory Masters is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Masters's NPI active?
- Yes — Gregory Masters's NPI (1689750515) is active in the NPPES registry as of the last update on 2021-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.