MRS. KAREN LARISSA WILLIAMS APRN
NPI 1326531690
Nurse Practitioner - Acute Care in Broken Arrow, OK
About Mrs. Karen Larissa Williams Aprn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. KAREN LARISSA WILLIAMS APRN (NPI 1326531690) is an individual acute care provider in Broken Arrow, Oklahoma, licensed in Oklahoma (109297) and active in the NPI registry since June 2018. She is enrolled in Medicare PECOS and is a graduate of Other (2017).
NPPES Registry Identity
Specialties & Licenses
Other Names 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
Mrs. Karen Larissa Williams Aprn 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 Karen Williams reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Cleveland, OK 74020
- Reassigned Medicare billing, Oklahoma enrollment
- Also billed through NPI 1801020565 (Oklahoma)
- 34 clinicians in this Medicare group
Lawton, OK 73505
- Reassigned Medicare billing, Oklahoma enrollment
- 56 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 74012 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 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BROKEN ARROW, OK 74012
BROKEN ARROW, OK 74012
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 Karen Williams's NPI number?
The NPI number for Karen Williams is 1326531690. It was assigned to this individual provider in the NPPES registry on June 12, 2018. The provider is also known as Karen Larissa Manar.
Where is Karen Williams located?
Karen Williams practices at 3100 S Elm Pl Ste B, Broken Arrow, OK 74012. The listed phone number is (918) 884-7800.
What is Karen Williams's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.
Is Karen Williams enrolled in Medicare?
Yes. Karen Williams 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 Karen Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Williams reassigns Medicare benefits to 2 organizations: Cleveland Area Hospital Holdings, Inc. (Cleveland, OK) and Healogics Specialty Physicians Of Oklahoma, PLLC (Lawton, 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 Karen Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Karen Williams accept?
Health plans from Mending Health list Karen Williams 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 Karen Williams was last updated on June 12, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Mrs. Karen Larissa Williams, APRN · NPI 1326531690
Acute Care physician in Broken Arrow, Oklahoma. Individual provider, active in the CMS NPPES registry since June 12, 2018.
## Identity
- **NPI:** 1326531690 (Entity type: Individual)
- **Enumerated:** June 12, 2018
- **Primary specialty:** Nurse Practitioner - Acute Care · taxonomy 363LA2100X
- **State license:** 109297 (Oklahoma)
- **Sole proprietor:** No
## Practice location
- **Address:** 3100 S ELM PL STE B, Broken Arrow, OK 74012-7950
- **Phone:** (918) 884-7800
## 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): Cleveland Area Hospital Holdings, Inc. (NPI 1427295872, Cleveland, OK); Healogics Specialty Physicians Of Oklahoma, PLLC (NPI 1144625740, Lawton, OK) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** June 12, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1326531690) · Data from the CMS NPPES public registry.