GOLDEN STATE ORTHOPEDICS & SPINE
NPI 1881539377
Orthopaedic Surgery in Pleasanton, CA

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

The NPI number for Golden State Orthopedics & Spine is 1881539377. It was assigned to this organization in the NPPES registry on April 21, 2026.

Q: What is Golden State Orthopedics & Spine's specialty?

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

Active since April 21, 2026

5924 STONERIDGE DR STE 300, PLEASANTON, CA 94588(925) 846-6200(510) 797-5184 Get Directions Write a Review

NPPES record last updated: April 21, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Golden State Orthopedics & Spine NPPES

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

GOLDEN STATE ORTHOPEDICS & SPINE (NPI 1881539377) is a healthcare organization registered as an orthopaedic surgery in Pleasanton, California and active in the NPI registry since April 2026. The organization lists Stephen Hammarstrom, Ceo, as its authorized official.

NPPES Registry Identity

NPI1881539377

Entity TypeOrganization

Primary Taxonomy207X00000X

Legal Business NameGOLDEN STATE ORTHOPEDICS & SPINE

Location Address5924 STONERIDGE DR STE 300Pleasanton, CA 94588-2887

Mailing AddressPo Box 31396Walnut Creek, CA 94598-8396 · (925) 939-8585 · Fax (925) 933-2709

Phone(925) 846-6200

Fax(510) 797-5184

Organization SubpartNo

Authorized OfficialStephen HammarstromCeo · (925) 256-2107

Enumeration DateApril 21, 2026

NPPES CertifiedApril 21, 2026

✔ NPI 1881539377 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.

5924 STONERIDGE DR STE 300, Pleasanton, CA 94588

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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. Of these, 26 practice within 10 miles. 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

Apurva Ambekar, PT, DPT

Physical Therapist in Private Practice

NPI 1467957662

4626 WILLOW RD
Pleasanton, CA 94588

(925) 463-0470

0.1 mi

Rachael Kahn, NP-C

Nurse Practitioner

NPI 1376296004

4000 DUBLIN BLVD STE 100
Dublin, CA 94568

(259) 939-8585

✔ PECOS1.7 mi

Alexander Bradley, MD

Orthopedic Surgery

NPI 1194259077

4000 DUBLIN BLVD STE 100
Dublin, CA 94568

(925) 939-8585

✔ PECOS✔ Accepts Medicare1.8 mi

Hany Elrashidy, M.D

Orthopedic Surgery

NPI 1376790089

4000 DUBLIN BLVD STE 100
Dublin, CA 94568

(925) 939-8585

✔ PECOS✔ Accepts Medicare1.8 mi

Araceli Hernandez Garcia

Physical Therapist in Private Practice

NPI 1538039912

4000 DUBLIN BLVD STE 100
Dublin, CA 94568

(925) 939-8585

✔ Accepts Medicare1.8 mi

Andrew Hou, MD

Physical Medicine and Rehabilitation

NPI 1942352489

4000 DUBLIN BLVD STE 100
Dublin, CA 94568

(925) 939-8585

✔ PECOS✔ Accepts Medicare1.8 mi

John Schwartz, MD

Hand Surgery

NPI 1114994985

4000 DUBLIN BLVD STE 100
Dublin, CA 94568

(925) 939-8585

✔ PECOS✔ Accepts Medicare1.8 mi

Matthew Scroggy

Nurse Practitioner

NPI 1972317022

4000 DUBLIN BLVD STE 100
Dublin, CA 94568

(925) 939-8585

✔ PECOS✔ Accepts Medicare1.8 mi

Shannon Toy, PT, DPT

Physical Therapist in Private Practice

NPI 1275340614

4000 DUBLIN BLVD STE 100
Dublin, CA 94568

(925) 939-8585

✔ Accepts Medicare1.8 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 Medicare6.5 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 Medicare6.5 mi

Jessica Sanchez, PT, DPT, ATC

Physical Therapist in Private Practice

NPI 1326640855

12647 ALCOSTA BLVD STE 100
San Ramon, CA 94583

(925) 210-8530

✔ Accepts Medicare6.5 mi

Margaret Cary, PT

Physical Therapist in Private Practice

NPI 1770550394

12647 ALCOSTA BLVD STE 100
San Ramon, CA 94583

(925) 939-8585

✔ Accepts Medicare6.5 mi

Jessica Endo, PT, DPT

Physical Therapist in Private Practice

NPI 1558818872

12647 ALCOSTA BLVD STE 100
San Ramon, CA 94583

(925) 939-8585

✔ Accepts Medicare6.5 mi

Jeanina Ng

Occupational Therapist in Private Practice

NPI 1760235659

12647 ALCOSTA BLVD STE 100
San Ramon, CA 94583

(925) 210-8530

✔ Accepts Medicare6.5 mi

Deborah Vanderbilt- Anderson, OT

Occupational Therapist in Private Practice

NPI 1598732109

12647 ALCOSTA BLVD STE 100
San Ramon, CA 94583

(259) 398-9585

6.5 mi

Karina Masoian

Physical Therapist in Private Practice

NPI 1457279754

12647 ALCOSTA BLVD STE 100
San Ramon, CA 94583

(925) 210-8530

6.6 mi

Jacqueline Lizarraga, OT

Occupational Therapist in Private Practice

NPI 1619469558

5201 NORRIS CANYON RD STE 300
San Ramon, CA 94583

(925) 939-8585

✔ Accepts Medicare6.8 mi

Anna Luo, OD

Optometry

NPI 1154934552

3191 CROW CANYON PL
San Ramon, CA 94583

(925) 244-1400

✔ PECOS7.1 mi

Mir Ali, M.D.

Anesthesiology

NPI 1417912726

200 PORTER DR
San Ramon, CA 94583

(925) 838-6880

✔ PECOS✔ Accepts Medicare7.6 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 1881539377. 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 5924 Stoneridge Dr Ste 300, Pleasanton, CA 94588. The listed phone number is (925) 846-6200.

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). Of these, 26 practice within 10 miles. 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.