JOHN C FOX MD
NPI 1033299185
Emergency Medicine in Orange, CA
About John C Fox Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN C FOX MD (NPI 1033299185) is an individual emergency medicine provider in Orange, California, licensed in California (000000A68221) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS and is a graduate of Tufts University School Of Medicine (1997).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
John C Fox Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show John C Fox reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 219 clinicians in this Medicare group
Santa Ana, CA 92701
- Reassigned Medicare billing, California enrollment
- 255 clinicians in this Medicare group
Norco, CA 92860
- Reassigned Medicare billing, California enrollment
- 27 clinicians in this Medicare group
Avalon, CA 90704
- Reassigned Medicare billing, California enrollment
- 42 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.
Areas of Expertise CMS Part B claims 6
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92868 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.
ORANGE, CA 92868
ORANGE, CA 92868
ORANGE, CA 92868
ORANGE, CA 92868
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 John C Fox's NPI number?
The NPI number for John C Fox is 1033299185. It was assigned to this individual provider in the NPPES registry on October 16, 2006.
Where is John C Fox located?
John C Fox practices at Uci Medical Center 101 The City Drive South, Orange, CA 92868. The listed phone number is (714) 456-2986.
What is John C Fox's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is John C Fox enrolled in Medicare?
Yes. John C Fox is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for John C Fox's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John C Fox reassigns Medicare benefits to 4 organizations: Regents Of The University Of (Orange, CA), University Of California Irvine (Santa Ana, CA), Southern California Emergency Medicine (Norco, CA) and Avalon Medical Development Corporation (Avalon, CA). Each 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 John C Fox'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 John C Fox was last updated on December 14, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.