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GOLDEN STATE MEDICAL GROUP
NPI 1255958476
Family Medicine in Montclair, CA

Active since July 03, 2020
4959 PALO VERDE ST STE 206A-5, MONTCLAIR, CA 91763(909) 694-4016(909) 920-3344 Get Directions Write a Review

NPPES record last updated: July 3, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Golden State Medical Group NPPES

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

GOLDEN STATE MEDICAL GROUP (NPI 1255958476) is a healthcare organization registered as a family medicine in Montclair, California and active in the NPI registry since July 2020. The organization lists Jhujhar Singh, Physician/owener, as its authorized official.

NPPES Registry Identity

NPI1255958476
Entity TypeOrganization
Primary Taxonomy207Q00000X
Legal Business NameGOLDEN STATE MEDICAL GROUP
Location Address4959 PALO VERDE ST STE 206A-5Montclair, CA 91763-2342
Mailing Address4959 Palo Verde St Ste 206a-5Montclair, CA 91763-2342 · (909) 694-4016 · Fax (909) 920-3344
Phone(909) 694-4016
Fax(909) 920-3344
Organization SubpartNo
Authorized OfficialJhujhar SinghPhysician/owener · (909) 694-4016
Enumeration DateJuly 3, 2020
NPPES CertifiedJuly 3, 2020
✔ NPI 1255958476 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
4959 PALO VERDE ST STE 206A-5, Montclair, CA 91763
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE 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 Medical Group is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

11

Medicare enrollment records show 11 clinicians reassign Medicare billing to Golden State Medical Group, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 5 within 10 miles. They are listed nearest first.

Clinicians by Medicare Specialty 4

Family Practice5
Internal Medicine4
Geriatric Medicine1
Nurse Practitioner1

Clinicians, nearest first (11)

Jhujhar Singh, DO
Geriatric Medicine
NPI 1730361544
4959 PALO VERDE ST STE 206A-5
Montclair, CA 91763
(909) 694-4016
✔ PECOS✔ Accepts MedicareSame address
Andrea Glover, FNP-C
Nurse Practitioner
NPI 1962976019
12196 DUNLAP PL
Chino, CA 91710
(909) 573-5192
✔ PECOS✔ Accepts Medicare3.4 mi
Harikrishna Ambati, MD
Family Practice
NPI 1154998730
5451 WALNUT AVE
Chino, CA 91710
(909) 464-8723
✔ PECOS✔ Accepts Medicare3.9 mi
Mena Hanna, MD
Internal Medicine
NPI 1831891456
1350 W COVINA BLVD
San Dimas, CA 91773
(909) 599-6811
✔ PECOS✔ Accepts Medicare8.0 mi
Narinder Singh, MD
Family Practice
NPI 1841867439
1350 W COVINA BLVD
San Dimas, CA 91773
(909) 996-8115
✔ PECOS✔ Accepts Medicare8.0 mi
Sushma Sadula, MD
Internal Medicine
NPI 1104489566
12442 LIMONITE AVE UNIT 205
Eastvale, CA 91752
(909) 429-2864
✔ PECOS✔ Accepts Medicare11 mi
Edward Lin, DO
Family Practice
NPI 1881122315
1850 S AZUSA AVE STE 201
Hacienda Heights, CA 91745
(626) 913-2383
✔ PECOS✔ Accepts Medicare15 mi
Ragu Sivarajan, D.O,.
Internal Medicine
NPI 1902246523
16465 SIERRA LAKES PKWY STE 245
Fontana, CA 92336
(909) 330-3939
✔ PECOS✔ Accepts Medicare15 mi
Sachin Chatta, M.D.
Family Practice
NPI 1063906709
742 W HIGHLAND AVE
San Bernardino, CA 92405
(909) 881-7320
✔ PECOS✔ Accepts Medicare23 mi
Jose Velasquez, MD
Family Practice
NPI 1053897561
23141 VERDUGO DR STE 201
Laguna Hills, CA 92653
(949) 215-5055
✔ PECOS✔ Accepts Medicare31 mi
Wenbai Zhou, M.D.
Internal Medicine
NPI 1841644143
825 DELBON AVE
Turlock, CA 95382
(209) 576-3525
✔ PECOS✔ Accepts Medicare295 mi

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 Medical Group's NPI number?

The NPI number for Golden State Medical Group is 1255958476. It was assigned to this organization in the NPPES registry on July 3, 2020.

Where is Golden State Medical Group located?

Golden State Medical Group is located at 4959 Palo Verde St Ste 206a-5, Montclair, CA 91763. The listed phone number is (909) 694-4016.

What is Golden State Medical Group's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Golden State Medical Group enrolled in Medicare?

Yes. Golden State Medical Group is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Golden State Medical Group?

According to the CMS Revalidation Reassignment List (October 2026 release), 11 clinicians in 4 Medicare specialties reassign their Medicare billing to Golden State Medical Group. 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 Family Practice (5), Internal Medicine (4) and Geriatric Medicine (1). Of these, 1 practice at this address and 5 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 Medical Group was last updated on July 3, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.