OPTUM
NPI 1376876912
Family Medicine in Fontana, CA
About Optum NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
OPTUM (NPI 1376876912) is a healthcare organization registered as a family medicine in Fontana, California and active in the NPI registry since September 2009. The organization lists Charles S Sabbah, Medical Director, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 3
Other Names 1
Other Identifiers 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Optum is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
149Medicare enrollment records show 149 clinicians reassign Medicare billing to Optum, which bills Medicare for the services they deliver. Of these, 8 practice at this address and 51 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 16
Nearest to this location (20)
See all 149Source: 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 Pinnacle Medical Group, Inc's NPI number?
The NPI number for Pinnacle Medical Group, Inc is 1376876912. It was assigned to this organization in the NPPES registry on September 15, 2009. The provider is doing business as Optum.
Where is Pinnacle Medical Group, Inc located?
Pinnacle Medical Group, Inc is located at 8110 Mango Ave, Fontana, CA 92335. The listed phone number is (909) 427-1303.
What is Pinnacle Medical Group, Inc's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Pinnacle Medical Group, Inc enrolled in Medicare?
Yes. Pinnacle Medical Group, Inc is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Pinnacle Medical Group, Inc?
According to the CMS Revalidation Reassignment List (October 2026 release), 149 clinicians in 16 Medicare specialties reassign their Medicare billing to Pinnacle Medical Group, Inc. 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 Nurse Practitioner (38), Diagnostic Radiology (31) and Internal Medicine (29). Of these, 8 practice at this address and 51 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 Pinnacle Medical Group, Inc was last updated on April 4, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Optum · NPI 1376876912
Family Medicine organization in Fontana, California. Organization record, active in the CMS NPPES registry since September 15, 2009.
## Identity
- **NPI:** 1376876912 (Entity type: Organization)
- **Enumerated:** September 15, 2009
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **Legal business name:** Pinnacle Medical Group, Inc
- **Organization subpart:** No
- **Authorized official:** Charles Sabbah, MEDICAL DIRECTOR
## Practice location
- **Address:** 8110 MANGO AVE, Fontana, CA 92335-3603
- **Phone:** (909) 427-1303
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 149 clinicians in 16 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (38), Diagnostic Radiology (31), Internal Medicine (29); 8 practice at this address and 51 within 10 miles; [full list](https://npiprofile.com/npi/1376876912/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 4, 2023
- **Other identifiers:** Other ZZZ14739Z (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1376876912) · Data from the CMS NPPES public registry.