PATRICIA WITMER
NPI 1558804880
Nurse Practitioner in Tulsa, OK
About Patricia Witmer NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PATRICIA WITMER (NPI 1558804880) is an individual nurse practitioner in Tulsa, Oklahoma, licensed in Oklahoma (109928) and active in the NPI registry since November 2016. She is enrolled in Medicare PECOS, is affiliated with Saint Francis Hospital Muskogee, and maintains a secondary practice location in Tulsa.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Patricia Witmer 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 Patricia Witmer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Tulsa, OK 74136
- Reassigned Medicare billing, Oklahoma enrollment
- 1,144 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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Saint Francis Hospital Muskogee
Acute Care Hospitals · Muskogee, OKSaint Francis Hospital, Inc
Acute Care Hospitals · Tulsa, OKSaint Francis Hospital South, LLC
Acute Care Hospitals · Tulsa, OKPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 74104 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.
TULSA, OK 74104
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 Patricia Witmer's NPI number?
The NPI number for Patricia Witmer is 1558804880. It was assigned to this individual provider in the NPPES registry on November 17, 2016.
Where is Patricia Witmer located?
Patricia Witmer practices at 1145 S Utica Ave Ste 460, Tulsa, OK 74104. The listed phone number is (918) 579-5749.
What is Patricia Witmer's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Patricia Witmer enrolled in Medicare?
Yes. Patricia Witmer 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 Patricia Witmer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Patricia Witmer reassigns Medicare benefits to Warren Clinic Inc (Tulsa, OK). 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 Patricia Witmer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Patricia Witmer accept?
Health plans from Blue Cross and Blue Shield of Oklahoma list Patricia Witmer 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 Patricia Witmer affiliated with any hospitals?
According to CMS data, Patricia Witmer is affiliated with Saint Francis Hospital Muskogee, Saint Francis Hospital, Inc and Saint Francis Hospital South, LLC.
When was this NPI record last updated?
The NPPES record for Patricia Witmer was last updated on December 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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.
# Patricia Witmer · NPI 1558804880
Nurse Practitioner physician in Tulsa, Oklahoma. Individual provider, active in the CMS NPPES registry since November 17, 2016.
## Identity
- **NPI:** 1558804880 (Entity type: Individual)
- **Enumerated:** November 17, 2016
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** 109928 (Oklahoma)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1145 S UTICA AVE STE 460, Tulsa, OK 74104-4041
- **Phone:** (918) 579-5749 · **Fax:** (918) 579-5762
## 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:** Warren Clinic Inc (NPI 1174582282, Tulsa, OK), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** December 4, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1558804880) · Data from the CMS NPPES public registry.