DR. WILLIAM A. WINDHAM MD
NPI 1932171253
Anesthesiology in Oklahoma City, OK
About Dr. William A. Windham Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM A. WINDHAM MD (NPI 1932171253) is an individual anesthesiology provider in Oklahoma City, Oklahoma, licensed in New Hampshire (18500) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with Glenwood Regional Medical Center, and is a graduate of Baylor College Of Medicine (1986).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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
Dr. William A. Windham Md 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
16Medicare enrollment records show William Windham reassigns Medicare billing to 16 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
Gainesville, TX 76240
- Reassigned Medicare billing, Texas enrollment
- 1,193 clinicians in this Medicare group
Arlington, TX 76006
- Reassigned Medicare billing, Texas enrollment
- 1,164 clinicians in this Medicare group
Fort Worth, TX 76109
- Reassigned Medicare billing, Texas enrollment
- 1,612 clinicians in this Medicare group
Abilene, TX 79601
- Reassigned Medicare billing, Texas enrollment
- 204 clinicians in this Medicare group
Tyler, TX 75702
- Reassigned Medicare billing, Texas enrollment
- 2,745 clinicians in this Medicare group
Bryan, TX 77802
- Reassigned Medicare billing, Texas enrollment
- 840 clinicians in this Medicare group
Houston, TX 77042
- Reassigned Medicare billing, Texas enrollment
- Medicare enrollment name: U S Anesthesia Partners Of Texas, PA
- 3,804 clinicians in this Medicare group
Orange, TX 77630
- Reassigned Medicare billing, Texas enrollment
- 205 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 10
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Glenwood Regional Medical Center
Acute Care Hospitals · West Monroe, LAChristus St Michael Health System
Acute Care Hospitals · Texarkana, TXOther Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 William Windham's NPI number?
The NPI number for William Windham is 1932171253. It was assigned to this individual provider in the NPPES registry on February 2, 2006.
Where is William Windham located?
William Windham practices at 920 Stanton L Young Blvd Ste Wp1140, Oklahoma City, OK 73104. The listed phone number is (405) 271-4351.
What is William Windham's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is William Windham enrolled in Medicare?
Yes. William Windham 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 William Windham's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Windham reassigns Medicare benefits to 16 organizations: Board Of Regents Of The University Of Oklahoma - Ou Physicians (Oklahoma City, OK), Ou Health Partners, Inc (Oklahoma City, OK), Acs Primary Care Physicians Southwest, PA (Gainesville, TX), Northstar Anesthesia, PA (Arlington, TX), Emergenchealth PLLC (Fort Worth, TX) and 11 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 William Windham's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Windham accept?
Health plans from Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, HMO Louisiana and UnitedHealthcare list William Windham 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 William Windham affiliated with any hospitals?
According to CMS data, William Windham is affiliated with Glenwood Regional Medical Center and Christus St Michael Health System.
When was this NPI record last updated?
The NPPES record for William Windham was last updated on January 21, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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. William A. Windham, MD · NPI 1932171253
Anesthesiology physician in Oklahoma City, Oklahoma. Individual provider, active in the CMS NPPES registry since February 2, 2006.
## Identity
- **NPI:** 1932171253 (Entity type: Individual)
- **Enumerated:** February 2, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 18500 (New Hampshire)
- **Sole proprietor:** No
## Practice location
- **Address:** 920 STANTON L YOUNG BLVD STE WP1140, Oklahoma City, OK 73104-5036
- **Phone:** (405) 271-4351 · **Fax:** (405) 271-8695
## 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:** 16 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); Acs Primary Care Physicians Southwest, PA (NPI 1538101019, Gainesville, TX); Northstar Anesthesia, PA (NPI 1912978610, Arlington, TX); Emergenchealth PLLC (NPI 1467970897, Fort Worth, TX); and 11 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Baylor College Of Medicine, class of 1986
## Record status
- **NPPES last updated:** January 21, 2021
- **Other identifiers:** Medicaid 139248219 (TX)
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Source: [NPI Profile](https://npiprofile.com/npi/1932171253) · Data from the CMS NPPES public registry.