Gregory Horner
M.D. | Hand Surgery | 33+ years Exp
Medicare Enrolled 4626 Willow Rd, Suite 200, Pleasanton
California, 94588-8517
925-463-0470 925-463-0473
Maps & DirectionsGregory Horner is a Pleasanton, California based orthopedic surgeon with 33 years of experience in Hand Surgery. He completed his graduation from Johns Hopkins University School Of Medicine in 1993. He is also affiliated with hospitals like Stanford Health Care - Valleycare. He accepts the Medicare-approved amount. Patients will not be billed for any more than the Medicare deductible and coinsurance. Active license number of Gregory Horner is A54276 for Hand Surgery in California.
Gregory Horner is trained in the investigation, preservation and restoration by medical, surgical and rehabilitative means of all structures of the upper extremity directly affecting the form and function of the hand and wrist.
Complete Profile:
Gregory Horner speciality, credentials, practice address, contact phone number and fax are as below.
Patients can directly walk in or can call on the below given phone number for appointment.
| Specialization: | Orthopedic - Hand Surgery |
| Credentials: | M.D. |
| Experience: | 33+ years |
| Medical School Attended: | Johns Hopkins University School Of Medicine |
| Graduation Year: | 1993 |
| Gender: | Male |
| Accepts Medicare Assignment: | Yes |
| Practice Address: | 4626 Willow Rd, Suite 200, Pleasanton,
California, 94588-8517 |
| Phone: | 925-463-0470 |
| Fax: | 925-463-0473 |
Professional Identification Codes:
NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS).
NPI details are as mentioned below.
| PAC ID: | 3779519061 |
| Enrollment ID: | I20080529000729 |
| NPI Number: | 1295730331 |
| NPI Enumeration Date: | 16 Jun, 2005 |
| NPI Last Update On: | 06 Mar, 2014 |
Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Gregory Horner are as mentioned below.
| License Number | Specialization | State | Status | |
| A54276 | Hand Surgery | California | Primary | |
Hospital Affiliation:
Surgeons are affiliated to many hospitals whom they worked with in the past or are presently working with. One surgeon can be affiliated to four to five hospitals at a time.
| Hospital Name (CCN) | State | Hospital Type |
| Stanford Health Care - Valleycare (050283) | Pleasanton, CA | Acute Care Hospital |
Group Practice:
Group practices are practice of medicine by a group of physicians who share their premises and other resources. Following list states all the group name
with which Gregory Horner is associated with along with the number of members in that group.
| Organization Name (Group PAC ID) | Members |
| Tri-valley Orthopedic And Sports Medical Group Inc (3577461151) | 25 |
Other Medical Identifiers:
Other legacy medical identifiers associated with Gregory Horner such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
| Identifier | Type | State | Issuer |
| 200039899 | Other | California | MEDICARE RAILROAD |
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
| Address: | 4626 Willow Rd, Suite 200
Pleasanton, California |
| Zip: | 94588-8517 |
| Phone Number: | 925-463-0470 |
| Fax Number: | 925-463-0473 |
Patients can reach Gregory Horner at
4626 Willow Rd, Suite 200, Pleasanton, California or can
call to book an appointment on 925-463-0470.
Frequently Asked Questions:
Below are some commonly asked questions about Gregory Horner:
Dr. Gregory Horner is an orthopedic surgeon specializing in Hand Surgery. He is trained in the investigation, preservation and restoration by medical, surgical and rehabilitative means of all structures of the upper extremity directly affecting the form and function of the hand and wrist.
Dr. Gregory Horner received his medical degree (M.D.) from Johns Hopkins University School Of Medicine in 1993.
Dr. Gregory Horner has approximately 33 years of medical experience.
Yes, Dr. Gregory Horner accepts Medicare assignment, meaning provider participates in Medicare and accepts Medicare-approved amounts for eligible services.
Dr. Gregory Horner is affiliated with Stanford Health Care - Valleycare where surgeon can provide orthopedic evaluations, surgical procedures, and follow-up care.
Yes, Dr. Gregory Horner is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.
Dr. Gregory Horner practices at 4626 Willow Rd, Suite 200, Pleasanton, California, 94588-8517.
To schedule an appointment with Dr. Gregory Horner, please contact the office at 925-463-0470.
Comments/ Reviews:
Patients can read all the reviews posted for Gregory Horner below. You may also share your own experience like the quality of treatment, behavior, and overall care provided by Gregory Horner. It will help others make informed decisions.
** Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 08 June, 2026.