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GOLDEN STATE ORTHOPEDICS & SPINE
NPI 1073458568
Orthopaedic Surgery in Hayward, CA

Active since April 21, 2026
27206 CALAROGA AVE STE 207, HAYWARD, CA 94545(510) 300-9898(510) 797-5184 Get Directions Write a Review

NPPES record last updated: April 21, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Golden State Orthopedics & Spine NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GOLDEN STATE ORTHOPEDICS & SPINE (NPI 1073458568) is a healthcare organization registered as an orthopaedic surgery in Hayward, California and active in the NPI registry since April 2026. The organization lists Stephen Hammarstrom, Ceo, as its authorized official.

NPPES Registry Identity

NPI1073458568
Entity TypeOrganization
Primary Taxonomy207X00000X
Legal Business NameGOLDEN STATE ORTHOPEDICS & SPINE
Location Address27206 CALAROGA AVE STE 207Hayward, CA 94545-4300
Mailing AddressPo Box 31396Walnut Creek, CA 94598-8396 · (925) 939-8585 · Fax (925) 933-2709
Phone(510) 300-9898
Fax(510) 797-5184
Organization SubpartNo
Authorized OfficialStephen HammarstromCeo · (925) 256-2107
Enumeration DateApril 21, 2026
NPPES CertifiedApril 21, 2026
✔ NPI 1073458568 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207X00000X
Definition
An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.
27206 CALAROGA AVE STE 207, Hayward, CA 94545
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Golden State Orthopedics & Spine is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

210

Medicare enrollment records show 210 clinicians reassign Medicare billing to Golden State Orthopedics & Spine, which bills Medicare for the services they deliver. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 14

Physical Therapist in Private Practice93
Orthopedic Surgery55
Occupational Therapist in Private Practice24
Nurse Practitioner16
Hand Surgery6
Physical Medicine and Rehabilitation5
Family Practice3
Sports Medicine2
6 other specialties6

Nearest to this location (20)

See all 210
Mir Ali, M.D.
Anesthesiology
NPI 1417912726
200 PORTER DR
San Ramon, CA 94583
(925) 838-6880
✔ PECOS✔ Accepts Medicare11 mi
Apurva Ambekar, PT, DPT
Physical Therapist in Private Practice
NPI 1467957662
4626 WILLOW RD
Pleasanton, CA 94588
(925) 463-0470
11 mi
Anna Luo, OD
Optometry
NPI 1154934552
3191 CROW CANYON PL
San Ramon, CA 94583
(925) 244-1400
✔ PECOS12 mi
Ella Mcdonald, MOT OTR/L
Occupational Therapist in Private Practice
NPI 1942006655
12647 ALCOSTA BLVD STE 100
San Ramon, CA 94583
(925) 210-8503
✔ Accepts Medicare12 mi
Jasmine Mehta, P.T
Physical Therapist in Private Practice
NPI 1548719404
12647 ALCOSTA BLVD STE 100
San Ramon, CA 94583
(925) 939-8585
✔ Accepts Medicare12 mi
Jeanina Ng
Occupational Therapist in Private Practice
NPI 1760235659
12647 ALCOSTA BLVD STE 100
San Ramon, CA 94583
(925) 210-8530
✔ Accepts Medicare12 mi
Rachael Kahn, NP-C
Nurse Practitioner
NPI 1376296004
4000 DUBLIN BLVD STE 100
Dublin, CA 94568
(259) 939-8585
✔ PECOS13 mi
Alexander Bradley, MD
Orthopedic Surgery
NPI 1194259077
4000 DUBLIN BLVD STE 100
Dublin, CA 94568
(925) 939-8585
✔ PECOS✔ Accepts Medicare13 mi
Hany Elrashidy, M.D
Orthopedic Surgery
NPI 1376790089
4000 DUBLIN BLVD STE 100
Dublin, CA 94568
(925) 939-8585
✔ PECOS✔ Accepts Medicare13 mi
Andrew Hou, MD
Physical Medicine and Rehabilitation
NPI 1942352489
4000 DUBLIN BLVD STE 100
Dublin, CA 94568
(925) 939-8585
✔ PECOS✔ Accepts Medicare13 mi
John Schwartz, MD
Hand Surgery
NPI 1114994985
4000 DUBLIN BLVD STE 100
Dublin, CA 94568
(925) 939-8585
✔ PECOS✔ Accepts Medicare13 mi
Matthew Scroggy
Nurse Practitioner
NPI 1972317022
4000 DUBLIN BLVD STE 100
Dublin, CA 94568
(925) 939-8585
✔ PECOS✔ Accepts Medicare13 mi
Eric Stuffmann, M.D.
Hand Surgery
NPI 1922294719
3315 BROADWAY
Oakland, CA 94611
(925) 939-8585
✔ PECOS✔ Accepts Medicare16 mi
Ross Talarico, D.P.M.
Podiatry
NPI 1265581037
3315 BROADWAY
Oakland, CA 94611
(925) 939-8585
✔ PECOS✔ Accepts Medicare16 mi
Michael Chang, D.O.
Physical Medicine and Rehabilitation
NPI 1205934262
2405 SHADELANDS DR
Walnut Creek, CA 94598
(925) 939-8585
✔ PECOS✔ Accepts Medicare20 mi
Mark Christiansen, MD
Endocrinology
NPI 1821108218
2405 SHADELANDS DR STE 300
Walnut Creek, CA 94598
(925) 939-8585
✔ PECOS20 mi
Matthew Pecci, M.D.
Family Practice
NPI 1699749754
2625 SHADELANDS DR
Walnut Creek, CA 94598
(925) 939-8585
✔ PECOS✔ Accepts Medicare21 mi
Craig Wiseman, M.D.
Sports Medicine
NPI 1558386524
2625 SHADELANDS DR
Walnut Creek, CA 94598
(925) 939-8585
✔ PECOS✔ Accepts Medicare21 mi
Chris Chung, M.D.
Family Practice
NPI 1528043403
900 LAFAYETTE ST STE 105
Santa Clara, CA 95050
(408) 293-7767
✔ PECOS✔ Accepts Medicare21 mi
Anthony Saglimbeni, M.D.
Sports Medicine
NPI 1922053776
900 LAFAYETTE ST STE 105
Santa Clara, CA 95050
(408) 293-7767
✔ PECOS✔ Accepts Medicare21 mi
See all 210 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Golden State Orthopedics & Spine's NPI number?

The NPI number for Golden State Orthopedics & Spine is 1073458568. It was assigned to this organization in the NPPES registry on April 21, 2026.

Where is Golden State Orthopedics & Spine located?

Golden State Orthopedics & Spine is located at 27206 Calaroga Ave Ste 207, Hayward, CA 94545. The listed phone number is (510) 300-9898.

What is Golden State Orthopedics & Spine's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

Is Golden State Orthopedics & Spine enrolled in Medicare?

Yes. Golden State Orthopedics & Spine is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Golden State Orthopedics & Spine?

According to the CMS Revalidation Reassignment List (October 2026 release), 210 clinicians in 14 Medicare specialties reassign their Medicare billing to Golden State Orthopedics & Spine. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Physical Therapist in Private Practice (93), Orthopedic Surgery (55) and Occupational Therapist in Private Practice (24). Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Golden State Orthopedics & Spine was last updated on April 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.