WILLIAM STEWART JR. CRNA
NPI 1487042073
Nurse Anesthetist, Certified Registered in Chickasha, OK
About William Stewart Jr. Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM STEWART JR. CRNA (NPI 1487042073) is an individual nurse anesthetist, certified registered in Chickasha, Oklahoma, licensed in Oklahoma (95464) and active in the NPI registry since January 2015. He is affiliated with Grady Memorial Hospital and is a graduate of Other (2014).
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
William Stewart Jr. Crna 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
3Medicare enrollment records show William Stewart reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chickasha, OK 73018
- Reassigned Medicare billing, Oklahoma enrollment
- 97 clinicians in this Medicare group
Oklahoma City, OK 73112
- Reassigned Medicare billing, Oklahoma enrollment
- 46 clinicians in this Medicare group
Tulsa, OK 74135
- Reassigned Medicare billing, Oklahoma enrollment
- 48 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 7
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Grady Memorial Hospital
Acute Care Hospitals · Chickasha, OKPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 73018 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.
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.
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 Stewart's NPI number?
The NPI number for William Stewart is 1487042073. It was assigned to this individual provider in the NPPES registry on January 5, 2015.
Where is William Stewart located?
William Stewart practices at 2220 W Iowa Ave, Chickasha, OK 73018. The listed phone number is (405) 224-2300.
What is William Stewart's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is William Stewart enrolled in Medicare?
Yes. William Stewart 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 Stewart's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Stewart reassigns Medicare benefits to 3 organizations: Grady Memorial Hospital (Chickasha, OK), Deaconess Anesthesia Services LLC (Oklahoma City, OK) and Anesthesia Associates Of Oklahoma PLLC (Tulsa, 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 William Stewart's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Stewart accept?
Health plans from Blue Cross and Blue Shield of Oklahoma list William Stewart 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 Stewart affiliated with any hospitals?
According to CMS data, William Stewart is affiliated with Grady Memorial Hospital.
When was this NPI record last updated?
The NPPES record for William Stewart was last updated on January 5, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# William Stewart Jr., CRNA · NPI 1487042073
Nurse Anesthetist, Certified Registered physician in Chickasha, Oklahoma. Individual provider, active in the CMS NPPES registry since January 5, 2015.
## Identity
- **NPI:** 1487042073 (Entity type: Individual)
- **Enumerated:** January 5, 2015
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 95464 (Oklahoma)
- **Sole proprietor:** No
## Practice location
- **Address:** 2220 W IOWA AVE, Chickasha, OK 73018-2738
- **Phone:** (405) 224-2300 · **Fax:** (405) 779-2143
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Grady Memorial Hospital (NPI 1750370268, Chickasha, OK); Deaconess Anesthesia Services LLC (NPI 1912432048, Oklahoma City, OK); Anesthesia Associates Of Oklahoma PLLC (NPI 1770891475, Tulsa, OK) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** January 5, 2015
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Source: [NPI Profile](https://npiprofile.com/npi/1487042073) · Data from the CMS NPPES public registry.