KATHERINE BUCK APRN-CNP
NPI 1659772986
Nurse Practitioner - Family in Norman, OK
About Katherine Buck Aprn-cnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KATHERINE BUCK APRN-CNP (NPI 1659772986) is an individual family provider in Norman, Oklahoma, licensed in Oklahoma (89559) and active in the NPI registry since September 2014. She is enrolled in Medicare PECOS, is affiliated with Ssm Health St Anthony Hospital - Oklahoma City, and is a graduate of Other (2014).
NPPES Registry Identity
Specialties & Licenses 2
Group Practice 1
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
Katherine Buck Aprn-cnp 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 Katherine Buck 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
- 845 clinicians in this Medicare group
Oklahoma City, OK 73104
- Reassigned Medicare billing, Oklahoma enrollment
- 1,795 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 3
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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ssm Health St Anthony Hospital - Oklahoma City
Acute Care Hospitals · Oklahoma City, OKStillwater Medical Center
Acute Care Hospitals · Stillwater, OKO U Medical Center
Acute Care Hospitals · Oklahoma City, OKPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 73069 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.
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 Katherine Buck's NPI number?
The NPI number for Katherine Buck is 1659772986. It was assigned to this individual provider in the NPPES registry on September 5, 2014.
Where is Katherine Buck located?
Katherine Buck practices at 225 E Mosier St, Norman, OK 73069. The listed phone number is (918) 691-4777.
What is Katherine Buck's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Katherine Buck enrolled in Medicare?
Yes. Katherine Buck 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 Katherine Buck's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Buck reassigns Medicare benefits to 2 organizations: Board Of Regents Of The University Of Oklahoma - Ou Physicians (Oklahoma City, OK) and Ou Health Partners, Inc (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 Katherine Buck's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Katherine Buck accept?
Health plans from Blue Cross and Blue Shield of Oklahoma and Mending Health list Katherine Buck 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.
Is Katherine Buck affiliated with any hospitals?
According to CMS data, Katherine Buck is affiliated with Ssm Health St Anthony Hospital - Oklahoma City, Stillwater Medical Center and O U Medical Center.
When was this NPI record last updated?
The NPPES record for Katherine Buck was last updated on January 23, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Katherine Buck, APRN-CNP · NPI 1659772986
Family physician in Norman, Oklahoma. Individual provider, active in the CMS NPPES registry since September 5, 2014.
## Identity
- **NPI:** 1659772986 (Entity type: Individual)
- **Enumerated:** September 5, 2014
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 89559 (Oklahoma)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 225 E MOSIER ST, Norman, OK 73069-7883
- **Phone:** (918) 691-4777
## 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): Board Of Regents Of The University Of Oklahoma - Ou Physicians (NPI 1801869250, Oklahoma City, OK); Ou Health Partners, Inc (NPI 1528642642, Oklahoma City, OK) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** January 23, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1659772986) · Data from the CMS NPPES public registry.