ROBERT M. THEAL MD
NPI 1003987991
Family Medicine in Fontana, CA
About Robert M. Theal Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ROBERT M. THEAL MD (NPI 1003987991) is an individual family medicine provider in Fontana, California, licensed in California (G55100) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, Davis School Of Medicine (1984).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Robert M. Theal Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Robert Theal reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Fontana, CA 92335
- Reassigned Medicare billing, California enrollment
- 5,228 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92335 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FONTANA, CA 92335
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 Robert Theal's NPI number?
The NPI number for Robert Theal is 1003987991. It was assigned to this individual provider in the NPPES registry on November 13, 2006.
Where is Robert Theal located?
Robert Theal practices at 9961 Sierra Ave, Fontana, CA 92335. The listed phone number is (909) 427-3910.
What is Robert Theal's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Robert Theal enrolled in Medicare?
Yes. Robert Theal is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Robert Theal's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Robert Theal reassigns Medicare benefits to Southern California Permanente Medical Group (Fontana, CA). The 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 Robert Theal's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Robert Theal was last updated on December 1, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Robert M. Theal, MD · NPI 1003987991
Family Medicine physician in Fontana, California. Individual provider, active in the CMS NPPES registry since November 13, 2006.
## Identity
- **NPI:** 1003987991 (Entity type: Individual)
- **Enumerated:** November 13, 2006
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** G55100 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 9961 SIERRA AVE, Fontana, CA 92335-6720
- **Phone:** (909) 427-3910
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Southern California Permanente Medical Group (NPI 1689606196, Fontana, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Davis School Of Medicine, class of 1984
## Record status
- **NPPES last updated:** December 1, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1003987991) · Data from the CMS NPPES public registry.