GOLDEN STATE ORTHOPEDICS & SPINE
NPI 1912252024
Orthopaedic Surgery in Brentwood, CA

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

The NPI number for Golden State Orthopedics & Spine is 1912252024. It was assigned to this organization in the NPPES registry on July 16, 2012.

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 July 16, 2012

350 JOHN MUIR PKWY STE 100, BRENTWOOD, CA 94513(925) 939-8585(925) 933-2709 Get Directions Write a Review

NPPES record last updated: June 13, 2024. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Jun 13, 2024, Jan 26, 2022, Aug 19, 2020 and 1 more (4 updates tracked since 2019).

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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 1912252024) is a healthcare organization registered as an orthopaedic surgery in Brentwood, California and active in the NPI registry since July 2012. The organization lists Stephen Hammarstrom, Ceo, as its authorized official.

NPPES Registry Identity

NPI1912252024

Entity TypeOrganization

Primary Taxonomy207X00000X

Legal Business NameGOLDEN STATE ORTHOPEDICS & SPINE

Location Address350 JOHN MUIR PKWY STE 100Brentwood, CA 94513-5184

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

Phone(925) 939-8585

Fax(925) 933-2709

Organization SubpartYes

Authorized OfficialStephen HammarstromCeo · (925) 939-8585

Enumeration DateJuly 16, 2012

Last NPPES UpdateJune 13, 20244 updates tracked since enumeration

NPPES CertifiedJune 13, 2024

✔ NPI 1912252024 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.

350 JOHN MUIR PKWY STE 100, Brentwood, CA 94513

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Other Identifiers 1

Other6461930003Dme Supplier Ptan

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, 4 practice at this address and 15 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

Jonathan Ochoa, MD

Orthopedic Surgery

NPI 1215424254

350 JOHN MUIR PKWY STE 100
Brentwood, CA 94513

(925) 939-8585

✔ PECOS✔ Accepts MedicareSame address

Sohila Khalili, DPT

Physical Therapist in Private Practice

NPI 1184285520

350 JOHN MUIR PKWY STE 155
Brentwood, CA 94513

(925) 939-8585

✔ Accepts MedicareSame address

Nicole Kurthausen-Bon, O.T.

Occupational Therapist in Private Practice

NPI 1699118125

350 JOHN MUIR PKWY STE 155
Brentwood, CA 94513

(925) 939-8585

✔ Accepts MedicareSame address

Leslie Lourenzo, MPT

Physical Therapist in Private Practice

NPI 1437618931

350 JOHN MUIR PKWY STE 250
Brentwood, CA 94513

(925) 308-8160

✔ Accepts MedicareSame address

Jacquelyn Colmenares, PT, DPT

Physical Therapist in Private Practice

NPI 1467160911

2490 SAND CREEK RD
Brentwood, CA 94513

(925) 939-8585

✔ Accepts Medicare2.0 mi

Darian Harris, OTD

Occupational Therapist in Private Practice

NPI 1932881893

2490 SAND CREEK RD
Brentwood, CA 94513

(925) 939-8585

✔ Accepts Medicare2.0 mi

Mary Ann Lacson, PT

Physical Therapist in Private Practice

NPI 1851638928

2490 SAND CREEK RD
Brentwood, CA 94513

(925) 939-8585

✔ Accepts Medicare2.0 mi

Melissa Sennewald, PT, DPT

Physical Therapist in Private Practice

NPI 1497411789

2490 SAND CREEK RD
Brentwood, CA 94513

(925) 939-8585

✔ Accepts Medicare2.0 mi

Connor Byrne

Orthopedic Surgery

NPI 1144782541

101 SAND CREEK RD STE A
Brentwood, CA 94513

(925) 939-8585

✔ PECOS✔ Accepts Medicare2.8 mi

Jin Choi, DO

Osteopathic Manipulative Medicine

NPI 1114330727

101 SAND CREEK RD STE B
Brentwood, CA 94513

(925) 939-8585

✔ PECOS✔ Accepts Medicare2.8 mi

Zainab Hussain

Occupational Therapist in Private Practice

NPI 1528922929

101 SAND CREEK RD STE A
Brentwood, CA 94513

(925) 939-8585

✔ Accepts Medicare2.8 mi

Brian Martija

Physical Therapist in Private Practice

NPI 1285504399

101 SAND CREEK RD STE A
Brentwood, CA 94513

(925) 978-6959

✔ Accepts Medicare2.8 mi

Jacky Peng

Physical Therapist in Private Practice

NPI 1508604489

101 SAND CREEK RD STE A
Brentwood, CA 94513

(925) 939-8585

✔ Accepts Medicare2.8 mi

Roman Rahmani, DO

Orthopedic Surgery

NPI 1326667791

101 SAND CREEK RD STE A
Brentwood, CA 94513

(925) 939-8585

✔ PECOS2.8 mi

Eileen Joy Stewart, OTD OTR/L

Occupational Therapist in Private Practice

NPI 1245112366

101 SAND CREEK RD STE A
Brentwood, CA 94513

(925) 939-8585

✔ Accepts Medicare2.8 mi

Melanie Wong, PT

Physical Therapist in Private Practice

NPI 1992891675

5201 NORRIS CANYON RD STE 230
San Ramon, CA 94583

(925) 939-8585

✔ Accepts Medicare16 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 Medicare16 mi

Desiree Agosto

Nurse Practitioner

NPI 1235907197

2625 SHADELANDS DR
Walnut Creek, CA 94598

(925) 939-8585

✔ PECOS✔ Accepts Medicare16 mi

Afshin Anoushiravani

Orthopedic Surgery

NPI 1003310293

2625 SHADELANDS DR
Walnut Creek, CA 94598

(925) 256-2107

✔ PECOS16 mi

Matthew Pecci, M.D.

Family Practice

NPI 1699749754

2625 SHADELANDS DR
Walnut Creek, CA 94598

(925) 939-8585

✔ PECOS✔ Accepts Medicare16 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 1912252024. It was assigned to this organization in the NPPES registry on July 16, 2012.

Where is Golden State Orthopedics & Spine located?

Golden State Orthopedics & Spine is located at 350 John Muir Pkwy Ste 100, Brentwood, CA 94513. The listed phone number is (925) 939-8585.

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, 4 practice at this address and 15 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 June 13, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.