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DR. WILLIAM S MUSSER MD
NPI 1063400208
Psychiatry & Neurology - Neurology in Pittsburgh, PA

Active since October 12, 2005PECOS EnrolledAccepts Medicare Assignment
320 E NORTH AVE, PITTSBURGH, PA 15212(412) 359-8850(412) 359-8809 Get Directions Write a Review

NPPES record last updated: July 23, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 23, 2026, Sep 12, 2025 (2 updates tracked since 2025).

About Dr. William S Musser Md NPPES

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

DR. WILLIAM S MUSSER MD (NPI 1063400208) is an individual neurology provider in Pittsburgh, Pennsylvania, licensed in Pennsylvania (MD-055122-L) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS, is affiliated with Allegheny General Hospital, and is a graduate of Albany Medical College Of Union University (1992).

NPPES Registry Identity

NPI1063400208
Entity TypeIndividualMale
Primary Taxonomy2084N0400X
Provider Legal NameDR. WILLIAM S MUSSERCredential: MD
Location Address320 E NORTH AVEPittsburgh, PA 15212-4756
Mailing Address320 E North AvePittsburgh, PA 15212-4756
Phone(412) 359-8850
Fax(412) 359-8809
Sole ProprietorNo
Medical School CMSAlbany Medical College Of Union UniversityGraduated 1992
Enumeration DateOctober 12, 2005
Last NPPES UpdateJuly 23, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 12, 2025
✔ NPI 1063400208 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
License✔ Licensed in PA · MD-055122-L
Definition
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
Also ListedPsychiatry & Neurology · Neuromuscular MedicineTaxonomy 2084N0008X · License MD-055122-L (PA)
Also ListedPsychiatry & Neurology · PsychiatryTaxonomy 2084P0800X · License MD-055122-L (PA)
Also ListedPsychiatry & Neurology · Vascular NeurologyTaxonomy 2084V0102X · License MD-055122-L (PA)
320 E NORTH AVE, Pittsburgh, PA 15212
Open in Google Maps ↗

Other Identifiers 1

Other047942PA · Individual Medicare Number

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 S Musser Md 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.

PECOS PAC ID840191292
PECOS Enrollment IDI20040119000085
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

4

Medicare enrollment records show William Musser reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Allegheny Clinic
Same address
Surgery
320 E NORTH AVE
Pittsburgh, PA 15212
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 2,881 clinicians in this Medicare group
NPI 1023018447 (412) 359-3336
University Of Pittsburgh Physicians
1.5 mi
Pediatrics
4401 PENN AVE
Pittsburgh, PA 15224
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 7,114 clinicians in this Medicare group
NPI 1225096639 (412) 692-5325
Upmc Community Medicine Inc
2.3 mi
Cardiovascular Disease
5140 LIBERTY AVE
Pittsburgh, PA 15224
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 1,182 clinicians in this Medicare group
NPI 1801179890 (412) 647-5438
Meadville Medical Center
81 mi
Neurology
765 LIBERTY ST STE 303
Meadville, PA 16335
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 27 clinicians in this Medicare group
NPI 1538420658 (814) 333-3929

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 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Allegheny General Hospital

Acute Care Hospitals · Pittsburgh, PA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390050
Location320 East North AvenuePittsburgh, PA 15212 · Allegheny County
Emergency services

Jefferson Hospital

Acute Care Hospitals · Jefferson Hills, PA
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390265
Location565 Coal Valley RoadJefferson Hills, PA 15025 · Allegheny County
Emergency services Birthing friendly

Ahn Wexford Hospital

Acute Care Hospitals · Wexford, PA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390334
Location12351 Perry HighwayWexford, PA 15090 · Allegheny County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 15212 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
$96.82 typical visit price
range $17.33 – $135.84
Typical copayment $24.20 (range $4.33 – $33.96)
Most-billed visit code 99214
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 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. MATTHEW SCOTT HARTMAN M.D.
Radiology (Diagnostic Radiology)
320 E NORTH AVE
PITTSBURGH, PA 15212
Allegheny County (412) 359-2459
DR. JOSEF TURNER M.D.
Emergency Medicine
320 E NORTH AVE, EMERGENCY MEDICINE RESIDENCY OFFICE
PITTSBURGH, PA 15212
Allegheny County (412) 359-4905
DR. MATTHEW MICHAEL LANDER M.D.
Internal Medicine (Advanced Heart Failure and Transplant Cardiology)
320 E NORTH AVE
PITTSBURGH, PA 15212
Allegheny County (412) 359-6500
DR. VINCENT SAMUEL CERETTO D.O
Emergency Medicine (Medical Toxicology)
320 E NORTH AVE
PITTSBURGH, PA 15212
Allegheny County (412) 359-3030
MATTHEW LYONS CRNA
Nurse Anesthetist, Certified Registered
320 E NORTH AVE
PITTSBURGH, PA 15212
Allegheny County (412) 359-3155
MISS KRISTY LYNN BOWMAN RN
Nurse Anesthetist, Certified Registered
320 E NORTH AVE
PITTSBURGH, PA 15212
Allegheny County (412) 359-6581
ANNA MOSELEY VANATTA MD
Emergency Medicine
320 E NORTH AVE
PITTSBURGH, PA 15212
Allegheny County (412) 359-4905
MACKENZIE MARIE MCGAHAN DO
Emergency Medicine
320 E NORTH AVE
PITTSBURGH, PA 15212
Allegheny County (412) 359-4905

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 Musser's NPI number?

The NPI number for William Musser is 1063400208. It was assigned to this individual provider in the NPPES registry on October 12, 2005.

Where is William Musser located?

William Musser practices at 320 E North Ave, Pittsburgh, PA 15212. The listed phone number is (412) 359-8850.

What is William Musser's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is William Musser enrolled in Medicare?

Yes. William Musser 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 Musser's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Musser reassigns Medicare benefits to 4 organizations: Allegheny Clinic (Pittsburgh, PA), University Of Pittsburgh Physicians (Pittsburgh, PA), Upmc Community Medicine Inc (Pittsburgh, PA) and Meadville Medical Center (Meadville, 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 Musser's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is William Musser affiliated with any hospitals?

According to CMS data, William Musser is affiliated with Allegheny General Hospital, Jefferson Hospital and Ahn Wexford Hospital.

When was this NPI record last updated?

The NPPES record for William Musser was last updated on July 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.