J Shoulder Elbow Surg
ArthroscopyCollateral LigamentsElbow Joint
Dr. Gregory W. Masters, MD
NPI1689750515PAC ID5395783849
- Publications
- 1
- Industry payments
- $1,635
- Affiliated sites
- 1
- Medical group
- 1
- Insurance carriers
- 1
- Practice address
- 710 Lawrence Expy, Santa Clara, CA 95051
- Practice phone
- Call (408) 851-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Permanente Medical Group Inc
Santa Clara, California
Find Dr. Masters' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Gregory W. Masters is an orthopedic surgeon in Santa Clara, California
Dr. Masters practices at Permanente Medical Group Inc in Santa Clara, California.
Dr. Masters' NPI, 1689750515, was assigned on October 31, 2006. Dr. Masters graduated from Vagelos College of Physicians and Surgeons in 1999. Dr. Masters holds California license A74016.
NPI and contact details
- NPI
- 1689750515NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5395783849
- NPI enumeration date
- October 31, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (408) 851-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory W. Masters practices at Permanente Medical Group Inc in Santa Clara, California
Dr. Masters' primary practice is Permanente Medical Group Inc, at 710 Lawrence Expy, Santa Clara, CA 95051 in Santa Clara County. The practice phone is (408) 851-1000.
- Permanente Medical Group Inc710 Lawrence Expy, Santa Clara, CA 95051 · Santa Clara CountyPhone(408) 851-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Gregory W. Masters is affiliated with 2 sites of care and 1 medical group
Dr. Masters' primary practice is Permanente Medical Group Inc in Santa Clara, California. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Masters to 1 more group practice or clinic, named with a free account.
Permanente Medical Group IncPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Gregory W. Masters' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Masters practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Permanente Medical Group Inc | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregory W. Masters is one of 2,056 orthopedic surgeons in California
Orthopaedic surgery is Dr. Masters' primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Masters is board certified in orthopaedic sports medicine by the American Board of Orthopaedic Surgery. Dr. Masters is licensed in California.
Specialties and state licenses
- Orthopaedic surgery, CaliforniaPrimary
Clinical focus
Dmand AI lists pelvic and hip fracture among the conditions Dr. Masters treats.
Orthopedic surgeons near Dr. Masters
Counts of orthopedic surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Gregory W. Masters' patients have a median age of 35
Across all payers, Dmand AI patient panel data puts Dr. Masters' median patient age at 35, with 36% women.
Dr. Masters' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 35
Patient panel by sex, all payers
- Women36%
- Men64%
Source: Dmand AI Patient Panel Data
How Dr. Gregory W. Masters takes part in Medicare
Dr. Masters accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory W. Masters has 1 publication on record
Dmand AI links 1 paper to Dr. Masters. Dr. Masters' most frequent co-author is Timothy Robert McAdams, MD.
Papers1
Dr. Masters' most frequent co-authors
Recent publications by Dr. Masters
See who Dr. Masters researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Masters works with, so you can find a warm path to the right orthopedic surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Gregory W. Masters received $1,635 in industry payments in 2018
CMS Open Payments shows 1 general payment to Dr. Masters from 1 drug or device company in 2018. Education make up the largest share, 100% of the total. Evolution Surgical, Inc paid the most, $1,635.
Companies that paid Dr. Masters the most, 2018 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gregory W. Masters graduated from Vagelos College of Physicians and Surgeons
Dr. Masters graduated from Vagelos College of Physicians and Surgeons in 1999.
- Medical school
- Board certified in orthopaedic sports medicine
- Board certified in orthopaedic surgery
Source: Dmand AI Professional Profile Data
Dr. Gregory W. Masters accepts plans from 1 insurance carrier
Dr. Masters is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
Plan types Dr. Masters accepts, by number of carriers
- EPO1
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Gregory W. Masters's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Gregory W. Masters
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Gregory W. Masters' NPI number?
Dr. Gregory W. Masters' NPI number is 1689750515. It was assigned on October 31, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory W. Masters?
Dr. Gregory W. Masters is an orthopedic surgeon in Santa Clara, California. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Gregory W. Masters practice?
Dr. Masters practices at 710 Lawrence Expy, Santa Clara, CA 95051. Dr. Masters' primary practice is Permanente Medical Group Inc in Santa Clara, California. Dmand AI also links Dr. Masters to 1 group practice or clinic.
What is Dr. Gregory W. Masters' office phone number?
The practice phone on file for Dr. Masters is (408) 851-1000.
What is Dr. Gregory W. Masters' medical license number?
Dr. Masters holds California license A74016.
What medical group is Dr. Gregory W. Masters part of?
Dr. Masters is linked to The Permanente Medical Group, Inc.
Does Dr. Gregory W. Masters accept Medicare?
Yes. CMS lists Dr. Masters as accepting Medicare assignment.
Is Dr. Gregory W. Masters board certified?
Yes. Dr. Masters is board certified in orthopaedic sports medicine by the American Board of Orthopaedic Surgery.
Where did Dr. Gregory W. Masters go to medical school?
Dr. Masters graduated from Vagelos College of Physicians and Surgeons in 1999.
Has Dr. Gregory W. Masters received payments from drug or device companies?
CMS Open Payments shows $1,635 in general payments to Dr. Masters from 1 company from 2018 to 2018. The largest total came from Evolution Surgical, Inc.
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How long has Dr. Gregory W. Masters been practicing?
Dr. Masters graduated from medical school in 1999, 27 years ago.
Does Dr. Gregory W. Masters do research?
Dmand AI links 1 publication to Dr. Masters.
Who does Dr. Gregory W. Masters publish with?
Dr. Masters' most frequent co-authors are Timothy Robert McAdams, MD (1 shared paper).
What insurance does Dr. Gregory W. Masters accept?
Dr. Masters is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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