DR. WILLIAM ALAN OLEKSAK M.D.
NPI 1023131307
Internal Medicine in Ford City, PA
About Dr. William Alan Oleksak M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM ALAN OLEKSAK M.D. (NPI 1023131307) is an individual internal medicine provider in Ford City, Pennsylvania, licensed in Pennsylvania (MD431241) and active in the NPI registry since April 2007. He is enrolled in Medicare PECOS, is affiliated with Upmc St Margaret, and is a graduate of Jefferson Medical College Of Thomas Jefferson University (2004).
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
Dr. William Alan Oleksak M.d. 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 Oleksak reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Ford City, PA 16226
- Reassigned Medicare billing, Pennsylvania enrollment
- 3 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 9
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Upmc St Margaret
Acute Care Hospitals · Pittsburgh, PAMagee Womens Hospital Of Upmc Health System
Acute Care Hospitals · Pittsburgh, PAAcmh Hospital
Acute Care Hospitals · Kittanning, PAButler Memorial Hospital
Acute Care Hospitals · Butler, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 16226 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.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims 15
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES
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 Oleksak's NPI number?
The NPI number for William Oleksak is 1023131307. It was assigned to this individual provider in the NPPES registry on April 9, 2007.
Where is William Oleksak located?
William Oleksak practices at 313 Ford Street Suite 2A, Ford City, PA 16226. The listed phone number is (724) 763-7144.
What is William Oleksak's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is William Oleksak enrolled in Medicare?
Yes. William Oleksak 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 Oleksak's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Oleksak reassigns Medicare benefits to Philip A Gelacek MD PC (Ford City, 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 Oleksak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is William Oleksak affiliated with any hospitals?
According to CMS data, William Oleksak is affiliated with Upmc St Margaret, Magee Womens Hospital Of Upmc Health System, Acmh Hospital and Butler Memorial Hospital.
When was this NPI record last updated?
The NPPES record for William Oleksak was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.