MR. WILLIAM P SCHALLUS CRNA
NPI 1437139854
Nurse Anesthetist, Certified Registered in Wexford, PA
About Mr. William P Schallus Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. WILLIAM P SCHALLUS CRNA (NPI 1437139854) is an individual nurse anesthetist, certified registered in Wexford, Pennsylvania, licensed in Pennsylvania (RN325336L) and active in the NPI registry since January 2006. He is a graduate of Other (2001).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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
Mr. William P Schallus 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
2Medicare enrollment records show William Schallus reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Wexford, PA 15090
- Reassigned Medicare billing, Pennsylvania enrollment
- 2,881 clinicians in this Medicare group
Butler, PA 16001
- Reassigned Medicare billing, Pennsylvania enrollment
- 52 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 2
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 15090 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.
WEXFORD, PA 15090
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 Schallus's NPI number?
The NPI number for William Schallus is 1437139854. It was assigned to this individual provider in the NPPES registry on January 20, 2006.
Where is William Schallus located?
William Schallus practices at 12311 Perry Hwy, Wexford, PA 15090. The listed phone number is (878) 332-4242.
What is William Schallus's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is William Schallus enrolled in Medicare?
Yes. William Schallus 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 Schallus's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Schallus reassigns Medicare benefits to 2 organizations: Allegheny Clinic (Wexford, PA) and Butler Anesthesia Associates, P.C. (Butler, PA). 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 Schallus's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for William Schallus was last updated on October 13, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Mr. William P Schallus, CRNA · NPI 1437139854
Nurse Anesthetist, Certified Registered physician in Wexford, Pennsylvania. Individual provider, active in the CMS NPPES registry since January 20, 2006.
## Identity
- **NPI:** 1437139854 (Entity type: Individual)
- **Enumerated:** January 20, 2006
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** RN325336L (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 12311 PERRY HWY, Wexford, PA 15090-8344
- **Phone:** (878) 332-4242 · **Fax:** (878) 332-4485
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Allegheny Clinic (NPI 1245639749, Wexford, PA); Butler Anesthesia Associates, P.C. (NPI 1154350981, Butler, PA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2001
## Record status
- **NPPES last updated:** October 13, 2020
- **Other identifiers:** Medicaid 0019677100004 (PA)
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Source: [NPI Profile](https://npiprofile.com/npi/1437139854) · Data from the CMS NPPES public registry.