DR. JOHN CHARLES KIRBY D.O.
NPI 1033155346
Radiology - Diagnostic Radiology in Anaheim, CA
About Dr. John Charles Kirby D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN CHARLES KIRBY D.O. (NPI 1033155346) is an individual diagnostic radiology provider in Anaheim, California, licensed in California (20A4275) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of Kansas City University Of Physicians And Surgeons (1977).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 7
Accepted Insurance
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
Dr. John Charles Kirby D.o. 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 Reassignments
17Medicare enrollment records show John Kirby reassigns Medicare billing to 17 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Anaheim, CA 92807
- Reassigned Medicare billing, Arizona and California enrollments
- 3 clinicians in this Medicare group
Los Alamitos, CA 90720
- Reassigned Medicare billing, California enrollment
- 47 clinicians in this Medicare group
Los Angeles, CA 90033
- Reassigned Medicare billing, California enrollment
- 2,445 clinicians in this Medicare group
Los Angeles, CA 90033
- Reassigned Medicare billing, California enrollment
- 53 clinicians in this Medicare group
Glendale, CA 91206
- Reassigned Medicare billing, California enrollment
- 53 clinicians in this Medicare group
Mojave, CA 93501
- Reassigned Medicare billing, California enrollment
- 192 clinicians in this Medicare group
Bakersfield, CA 93301
- Reassigned Medicare billing, California enrollment
- 214 clinicians in this Medicare group
Delano, CA 93215
- Reassigned Medicare billing, California enrollment
- 135 clinicians in this Medicare group
Tulare, CA 93274
- Reassigned Medicare billing, California enrollment
- 119 clinicians in this Medicare group
Hanford, CA 93230
- Reassigned Medicare billing, California enrollment
- 139 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 23
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 92807 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Other Providers at the Same Location NPPES 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ANAHEIM, CA 92807
ANAHEIM, CA 92807
ANAHEIM, CA 92807
ANAHEIM, CA 92807
ANAHEIM, CA 92807
ANAHEIM, CA 92807
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 Kirby's NPI number?
The NPI number for John Kirby is 1033155346. It was assigned to this individual provider in the NPPES registry on June 22, 2006.
Where is John Kirby located?
John Kirby practices at 5528 E La Palma Ave Suite 4-A, Anaheim, CA 92807. The listed phone number is (714) 970-0200.
What is John Kirby's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is John Kirby enrolled in Medicare?
Yes. John Kirby 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 organizations bill Medicare for John Kirby's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Kirby reassigns Medicare benefits to 17 organizations: Fullerton Radiology Medical Group, Inc (Anaheim, CA), Los Alamitos Radiology Group Inc (Los Alamitos, CA), Usc Care Medical Group, Inc (Los Angeles, CA), Radiology Medical Group Of Wmmc (Los Angeles, CA), Los Angeles Radiology Medical Associates, Inc. (Glendale, CA) and 12 more organizations, listed in the Medicare section above. 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 Kirby's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Kirby accept?
Health plans from Blue Cross Blue Shield of Arizona list John Kirby as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for John Kirby was last updated on April 17, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Dr. John Charles Kirby, D.O. · NPI 1033155346
Diagnostic Radiology physician in Anaheim, California. Individual provider, active in the CMS NPPES registry since June 22, 2006.
## Identity
- **NPI:** 1033155346 (Entity type: Individual)
- **Enumerated:** June 22, 2006
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **State license:** 20A4275 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 5528 E LA PALMA AVE, SUITE 4-A, Anaheim, CA 92807-2115
- **Phone:** (714) 970-0200 · **Fax:** (714) 970-0270
## 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:** 17 organizations under Medicare reassignment (form CMS-855R): Fullerton Radiology Medical Group, Inc (NPI 1861451858, Anaheim, CA); Los Alamitos Radiology Group Inc (NPI 1427005024, Los Alamitos, CA); Usc Care Medical Group, Inc (NPI 1902846306, Los Angeles, CA); Radiology Medical Group Of Wmmc (NPI 1831123868, Los Angeles, CA); Los Angeles Radiology Medical Associates, Inc. (NPI 1366525487, Glendale, CA); and 12 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Kansas City University Of Physicians And Surgeons, class of 1977
## Record status
- **NPPES last updated:** April 17, 2014
- **Other identifiers:** Medicare UPIN C64502 (CA); Medicare PIN W20A4275L (CA); Medicaid 00AX42750 (CA); and 4 more
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Source: [NPI Profile](https://npiprofile.com/npi/1033155346) · Data from the CMS NPPES public registry.