Gregory Horner, M.D.
Orthopaedic Hand Surgery Physician · Pleasanton, CA
Gregory Horner, M.D. is an orthopaedic hand surgery physician with a practice address in Pleasanton, California, and NPI 1295730331, issued on Jun 16, 2005. Check the license (California A54276, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Gregory Horner
- Credential
- M.D.
- Primary taxonomy
- Orthopaedic Hand Surgery Physician 207XS0106X
- License number
- A54276 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4626 Willow RD, Pleasanton, CA 94588
- Phone
- (925) 463-0470
- Enumerated
- Jun 16, 2005
- Record last updated
- Mar 6, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (925) 463-0473
- Entity
- Type 1 · individual
8 nearest orthopaedic hand surgery physician records → All 288 in California → Look up another NPI →
Also registered at 4626 Willow RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Apurva Ambekar, PT, DPTOrthopedic Physical Therapist1467957662
- Kambiz Behzadi, MDOrthopaedic Surgery Physician1265437396
- Alexandra Burgar, M.D.Orthopaedic Hand Surgery Physician1801891932
- Ricardo Contreras, P.T.Physical Therapist1679504922
- Leslie Desrosiers, D.P.T.Physical Therapist1861634131
- Jeffrey Duncan, D.P.T.Physical Therapist1396838165
Verify Gregory Horner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A54276Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Gregory Horner among 288 orthopaedic hand surgery physician records in California
Gregory Horner, M.D. is one of 288 orthopaedic hand surgery physician records with a practice address in California. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 89% newer
- In a Medicare fileNo · 85% of these records are
- In the CMS Doctors and Clinicians fileNo · 74% of these records are
- Record last updated2014 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207XS0106X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Hand Surgery Physician providers in California
There are 288 orthopaedic hand surgery physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 288 in California → Every provider in Pleasanton → Orthopaedic Hand Surgery Physician nationwide →
The 8 orthopaedic hand surgery physician records with the nearest ZIP codes
- Alexandra Burgar, M.D.Pleasanton, CA 945881801891932
- Laura Sonoda, M.D.Pleasanton, CA 945881851732572
- Priscilla Wong, NPPleasanton, CA 945881104646660
- Peter Mansuripur, M.D.Vallejo, CA 945891588984306
- Tyler Clark, MDWalnut Creek, CA 945981831453778
- Jesse Dashe, M.D.San Leandro, CA 945781487917423
- Donald Lewis, M.D.Walnut Creek, CA 945981508816851
- John Schilling, MDWalnut Creek, CA 945981619199353
Common questions
What is Gregory Horner, M.D.'s NPI number?
Gregory Horner, M.D.'s National Provider Identifier (NPI) is 1295730331, issued on Jun 16, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Horner, M.D. located?
The NPPES record lists a practice address at 4626 Willow RD, Pleasanton, CA, 94588. Phone: (925) 463-0470. Providers update this record themselves, so call before visiting.
How can I verify Gregory Horner, M.D.'s license?
NPPES lists California license number A54276, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.