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ORANGE SURGICAL ASSOCIATES
NPI 1902630841
Surgery in Orange, CA

Active since August 30, 2024
1010 W LA VETA AVE STE 470, ORANGE, CA 92868(714) 541-5959 Get Directions Write a Review

NPPES record last updated: August 30, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Orange Surgical Associates NPPES

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

ORANGE SURGICAL ASSOCIATES (NPI 1902630841) is a healthcare organization registered as a surgery in Orange, California and active in the NPI registry since August 2024. The organization maintains a secondary practice location in Orange and lists Sami Hamamji, Managing Partner, as its authorized official.

NPPES Registry Identity

NPI1902630841
Entity TypeOrganization
Primary Taxonomy208600000X
Legal Business NameORANGE SURGICAL ASSOCIATES
Location Address1010 W LA VETA AVE STE 470Orange, CA 92868-4305
Mailing Address1010 W La Veta Ave Ste 470Orange, CA 92868-4305 · (714) 541-5959
Phone(714) 541-5959
Organization SubpartNo
Authorized OfficialSami HamamjiManaging Partner · (949) 500-6073
Enumeration DateAugust 30, 2024
NPPES CertifiedAugust 30, 2024
✔ NPI 1902630841 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
1010 W LA VETA AVE STE 470, Orange, CA 92868
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Secondary Practice Location 1

Location 11010 W La Veta Ave Ste 775Orange, CA 92868-4306 · Phone (714) 541-5959

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)

Orange Surgical Associates is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

7

Medicare enrollment records show 7 clinicians reassign Medicare billing to Orange Surgical Associates, which bills Medicare for the services they deliver. Of these, 5 practice at this address and 7 within 10 miles. They are listed nearest first.

Clinicians, nearest first (7)

Maher Gobran, M.D.
General Surgery
NPI 1740338557
1010 W LA VETA AVE SUITE 470
Orange, CA 92868
(714) 835-2500
✔ PECOS✔ Accepts MedicareSame address
Anita Gregory, M.D.
Colorectal Surgery (Proctology)
NPI 1881655868
1010 W LA VETA AVE SUITE 470
Orange, CA 92868
(714) 835-8300
✔ PECOS✔ Accepts MedicareSame address
Sami Hamamji, M.D.
General Surgery
NPI 1457425282
1010 W LA VETA AVE STE 775
Orange, CA 92868
(714) 541-5959
✔ PECOS✔ Accepts MedicareSame address
Abtin Khosravi, M.D.
General Surgery
NPI 1356583033
1010 W LA VETA AVE STE 775
Orange, CA 92868
(714) 541-4996
✔ PECOS✔ Accepts MedicareSame address
Grace Hwang, MD
Colorectal Surgery (Proctology)
NPI 1053720797
1010 W LA VETA AVE STE 470
Orange, CA 92868
(714) 202-5682
✔ PECOS✔ Accepts MedicareSame address
Eric Pham, MD
General Surgery
NPI 1124055041
1140 WEST LA VETA SUITE 760
Orange, CA 92868
(714) 541-4343
✔ PECOS✔ Accepts Medicare0.1 mi
Hisham El Bayar, M.D., F.A.C.S.
General Surgery
NPI 1659376622
1010 W. LAVETA AVE STE. 470
Orange, CA 92868
(714) 835-8300
✔ PECOS✔ Accepts Medicare1.0 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 Orange Surgical Associates's NPI number?

The NPI number for Orange Surgical Associates is 1902630841. It was assigned to this organization in the NPPES registry on August 30, 2024.

Where is Orange Surgical Associates located?

Orange Surgical Associates is located at 1010 W La Veta Ave Ste 470, Orange, CA 92868. The listed phone number is (714) 541-5959.

What is Orange Surgical Associates's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Orange Surgical Associates enrolled in Medicare?

Yes. Orange Surgical Associates is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Orange Surgical Associates?

According to the CMS Revalidation Reassignment List (October 2026 release), 7 clinicians in 2 Medicare specialties reassign their Medicare billing to Orange Surgical Associates. 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 General Surgery (5) and Colorectal Surgery (Proctology) (2). Of these, 5 practice at this address and 7 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 Orange Surgical Associates was last updated on August 30, 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.