DR. JOHN KIMBLE FRAZER M.D., PH.D.
NPI 1659450120
Pediatrics - Pediatric Hematology-Oncology in Oklahoma City, OK
About Dr. John Kimble Frazer M.d., Ph.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN KIMBLE FRAZER M.D., PH.D. (NPI 1659450120) is an individual pediatric hematology-oncology provider in Oklahoma City, Oklahoma, licensed in Oklahoma (29167) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Oklahoma College Of Medicine (2000).
NPPES Registry Identity
Specialties & Licenses
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 Kimble Frazer M.d., Ph.d. 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
2Medicare enrollment records show John Frazer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Oklahoma City, OK 73104
- Reassigned Medicare billing, Oklahoma enrollment
- 1,795 clinicians in this Medicare group
Oklahoma City, OK 73104
- Reassigned Medicare billing, Oklahoma enrollment
- 845 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.
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.
OKLAHOMA CITY, OK 73104
OKLAHOMA CITY, OK 73104
OKLAHOMA CITY, OK 73104
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 Frazer's NPI number?
The NPI number for John Frazer is 1659450120. It was assigned to this individual provider in the NPPES registry on November 3, 2006.
Where is John Frazer located?
John Frazer practices at 1200 Childrens Ave Suite 14500, Oklahoma City, OK 73104. The listed phone number is (405) 271-5311.
What is John Frazer's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.
Is John Frazer enrolled in Medicare?
Yes. John Frazer 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 Frazer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Frazer reassigns Medicare benefits to 2 organizations: Ou Health Partners, Inc (Oklahoma City, OK) and Board Of Regents Of The University Of Oklahoma - Ou Physicians (Oklahoma City, OK). 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 Frazer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Frazer accept?
Health plans from Blue Cross and Blue Shield of Oklahoma and Mending Health list John Frazer 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 Frazer was last updated on July 16, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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 Kimble Frazer, M.D., PH.D. · NPI 1659450120
Pediatric Hematology-Oncology physician in Oklahoma City, Oklahoma. Individual provider, active in the CMS NPPES registry since November 3, 2006.
## Identity
- **NPI:** 1659450120 (Entity type: Individual)
- **Enumerated:** November 3, 2006
- **Primary specialty:** Pediatrics - Pediatric Hematology-Oncology · taxonomy 2080P0207X
- **State license:** 29167 (Oklahoma)
- **Sole proprietor:** No
## Practice location
- **Address:** 1200 CHILDRENS AVE, SUITE 14500, Oklahoma City, OK 73104-4637
- **Phone:** (405) 271-5311 · **Fax:** (405) 271-3767
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Ou Health Partners, Inc (NPI 1528642642, Oklahoma City, OK); Board Of Regents Of The University Of Oklahoma - Ou Physicians (NPI 1801869250, Oklahoma City, OK) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Oklahoma College Of Medicine, class of 2000
## Record status
- **NPPES last updated:** July 16, 2012
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Source: [NPI Profile](https://npiprofile.com/npi/1659450120) · Data from the CMS NPPES public registry.