DR. WILLIAM JOHNATHAN STREIFF D.O.
NPI 1104166834
Surgery in Butler, PA
About Dr. William Johnathan Streiff D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM JOHNATHAN STREIFF D.O. (NPI 1104166834) is an individual surgery provider in Butler, Pennsylvania, licensed in Pennsylvania (OS020012) and active in the NPI registry since February 2013. He is enrolled in Medicare PECOS, is affiliated with Clarion Hospital, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
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
Dr. William Johnathan Streiff D.o. 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 William Streiff reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Butler, PA 16001
- Reassigned Medicare billing, Pennsylvania enrollment
- 482 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Clarion Hospital
Acute Care Hospitals · Clarion, PAButler Memorial Hospital
Acute Care Hospitals · Butler, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 16001 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 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BUTLER, PA 16001
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 Streiff's NPI number?
The NPI number for William Streiff is 1104166834. It was assigned to this individual provider in the NPPES registry on February 16, 2013.
Where is William Streiff located?
William Streiff practices at 129 Oneida Valley Rd Ste 111, Butler, PA 16001. The listed phone number is (724) 431-4190.
What is William Streiff's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is William Streiff enrolled in Medicare?
Yes. William Streiff 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 William Streiff's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Streiff reassigns Medicare benefits to Butler Medical Providers (Butler, PA). 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 William Streiff's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is William Streiff affiliated with any hospitals?
According to CMS data, William Streiff is affiliated with Clarion Hospital and Butler Memorial Hospital.
When was this NPI record last updated?
The NPPES record for William Streiff was last updated on July 9, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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 Johnathan Streiff, D.O. · NPI 1104166834
Surgery physician in Butler, Pennsylvania. Individual provider, active in the CMS NPPES registry since February 16, 2013.
## Identity
- **NPI:** 1104166834 (Entity type: Individual)
- **Enumerated:** February 16, 2013
- **Primary specialty:** Surgery · taxonomy 208600000X
- **State license:** OS020012 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 129 ONEIDA VALLEY RD STE 111, Butler, PA 16001-2252
- **Phone:** (724) 431-4190 · **Fax:** (724) 431-4192
## 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:** Butler Medical Providers (NPI 1295147098, Butler, PA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Lake Erie College Of Osteopathic Medicine, Erie, class of 2013
## Record status
- **NPPES last updated:** July 9, 2019
- **Other identifiers:** Other OS020012 (PA)
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Source: [NPI Profile](https://npiprofile.com/npi/1104166834) · Data from the CMS NPPES public registry.