DR. WILLIAM E BYRNE III M.D.
NPI 1356321939
Obstetrics & Gynecology in Harrisburg, PA
About Dr. William E Byrne Iii M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM E BYRNE III M.D. (NPI 1356321939) is an individual obstetrics & gynecology provider in Harrisburg, Pennsylvania, licensed in Pennsylvania (MD020266E) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with Upmc Pinnacle Hospitals, and is a graduate of Pennsylvania State University College Of Medicine (1975).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
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 E Byrne Iii 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 Byrne reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Harrisburg, PA 17110
- Reassigned Medicare billing, Pennsylvania enrollment
- 1,902 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Upmc Pinnacle Hospitals
Acute Care Hospitals · Harrisburg, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 17110 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 Byrne's NPI number?
The NPI number for William Byrne is 1356321939. It was assigned to this individual provider in the NPPES registry on January 19, 2006.
Where is William Byrne located?
William Byrne practices at 2645 N 3rd St, Harrisburg, PA 17110. The listed phone number is (717) 782-4700.
What is William Byrne's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is William Byrne enrolled in Medicare?
Yes. William Byrne 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 Byrne's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Byrne reassigns Medicare benefits to Pinnacle Health Medical Services (Harrisburg, 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 Byrne's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is William Byrne affiliated with any hospitals?
According to CMS data, William Byrne is affiliated with Upmc Pinnacle Hospitals.
When was this NPI record last updated?
The NPPES record for William Byrne was last updated on January 26, 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 E Byrne III, M.D. · NPI 1356321939
Obstetrics & Gynecology physician in Harrisburg, Pennsylvania. Individual provider, active in the CMS NPPES registry since January 19, 2006.
## Identity
- **NPI:** 1356321939 (Entity type: Individual)
- **Enumerated:** January 19, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** MD020266E (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 2645 N 3RD ST, Harrisburg, PA 17110-2034
- **Phone:** (717) 782-4700 · **Fax:** (717) 782-4710
## 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:** Pinnacle Health Medical Services (NPI 1245244979, Harrisburg, PA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Pennsylvania State University College Of Medicine, class of 1975
## Record status
- **NPPES last updated:** January 26, 2021
- **Other identifiers:** Other 50026615 (PA); Other 5329109 (PA); Other 25755 (PW); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1356321939) · Data from the CMS NPPES public registry.