WILLIAM DIEFENBACH
NPI 1740268812
Neurological Surgery in Erie, PA

Active since January 09, 2006PECOS Enrolled
2374 VILLAGE COMMON DR, STE 100, ERIE, PA 16506(814) 833-7246 Get Directions Write a Review

NPPES record last updated: March 25, 2021. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Mar 25, 2021, Oct 1, 2020, Mar 17, 2018 and 4 more (7 updates tracked since 2017).

About William Diefenbach NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM DIEFENBACH (NPI 1740268812) is an individual neurological surgery provider in Erie, Pennsylvania, licensed in Pennsylvania (MD050177L) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1740268812
Entity TypeIndividualMale
Primary Taxonomy207T00000X
Provider Legal NameWILLIAM DIEFENBACH
Location Address2374 VILLAGE COMMON DR, STE 100Erie, PA 16506-7201
Mailing Address2374 Village Common Dr, Ste 100Erie, PA 16506-7201
Sole ProprietorNo
Enumeration DateJanuary 9, 2006
Last NPPES UpdateMarch 25, 20217 updates tracked since enumeration
NPPES CertifiedOctober 1, 2020
✔ NPI 1740268812 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNeurological SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207T00000X
License✔ Licensed in PA · MD050177L
Definition
A neurological surgeon provides the operative and non-operative management (i.e., prevention, diagnosis, evaluation, treatment, critical care, and rehabilitation) of disorders of the central, peripheral, and autonomic nervous systems, including their supporting structures and vascular supply; the evaluation and treatment of pathological processes which modify function or activity of the nervous system; and the operative and non-operative management of pain. A neurological surgeon treats patients with disorders of the nervous system; disorders of the brain, meninges, skull, and their blood supply, including the extracranial carotid and vertebral arteries; disorders of the pituitary gland; disorders of the spinal cord, meninges, and vertebral column, including those which may require treatment by spinal fusion or instrumentation; and disorders of the cranial and spinal nerves throughout their distribution.
2374 VILLAGE COMMON DR, Erie, PA 16506

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William Diefenbach is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

6

Medicare enrollment records show William Diefenbach reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Interventional Pain Medicine
2374 VILLAGE COMMON DR, SUITE 100
Erie, PA 16506
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 9 clinicians in this Medicare group
Obstetrics & Gynecology
2501 W 12TH ST, SUITE 10
Erie, PA 16505
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 2,881 clinicians in this Medicare group
Family Medicine
201 STATE ST
Erie, PA 16550
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 962 clinicians in this Medicare group
Internal Medicine
15 S MAIN ST
Jamestown, NY 14701
  • Reassigned Medicare billing, New York and Pennsylvania enrollments
  • 233 clinicians in this Medicare group
Rural Health
564 THEATRE RD
Carrolltown, PA 15722
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 771 clinicians in this Medicare group
Internal Medicine
1414 9TH AVE, STATION MEDICAL CENTER
Altoona, PA 16602
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 338 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 16506 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.34 typical visit price
range $54.64 – $166.87
Typical copayment $31.58 (range $13.66 – $41.71)
Most-billed visit code 99204
Established Patient
$68.36 typical visit price
range $17.33 – $135.84
Typical copayment $17.09 (range $4.33 – $33.96)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Physical Therapist
2374 VILLAGE COMMON DR, SUITE 101
ERIE, PA 16506
Physical Therapist
2374 VILLAGE COMMON DR, STE 100
ERIE, PA 16506
Pain Medicine (Interventional Pain Medicine)
2374 VILLAGE COMMON DR, SUITE 100
ERIE, PA 16506
Clinic/Center (Ambulatory Surgical)
2374 VILLAGE COMMON DR, SUITE 200
ERIE, PA 16506
Specialist
2374 VILLAGE COMMON DR, SUITE 101
ERIE, PA 16506

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 Diefenbach's NPI number?

The NPI number for William Diefenbach is 1740268812. It was assigned to this individual provider in the NPPES registry on January 9, 2006.

Where is William Diefenbach located?

William Diefenbach practices at 2374 Village Common Dr Ste 100, Erie, PA 16506. The listed phone number is (814) 833-7246.

What is William Diefenbach's specialty?

The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.

Is William Diefenbach enrolled in Medicare?

Yes. William Diefenbach is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for William Diefenbach's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Diefenbach reassigns Medicare benefits to 6 organizations: Tri-State Pain Institute LLC (Erie, PA), Allegheny Clinic (Erie, PA), Regional Health Services Inc (Erie, PA), Great Lakes Physician Practice PC (Jamestown, NY), Dlp Conemaugh Physician Practices LLC (Carrolltown, PA) and 1 more organization, listed in the Medicare section above. 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 Diefenbach'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 Diefenbach was last updated on March 25, 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.