NPIMap

Individual provider Active NPI

William S Musser, MD

  • Neurology Physician
  • Pittsburgh, PA
National Provider Identifier
1063400208
Registry record updated Jul 23, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Neurology PhysicianTaxonomy code 2084N0400X
License
MD-055122-L Issued in PA
Practice address
320 E North Ave
Pittsburgh, PA 15212-4756
Phone
(412) 359-8850
Fax
(412) 359-8809
NPI assigned
Oct 12, 2005
Last updated
Jul 23, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 23, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Neurology Physician 2084N0400X MD-055122-L PA Primary
Psychiatry Physician 2084P0800X MD-055122-L PA
Vascular Neurology Physician 2084V0102X MD-055122-L PA
Neuromuscular Medicine (Psychiatry & Neurology) Physician 2084N0008X MD-055122-L PA

Addresses

Primary practice location

320 E North Ave
Pittsburgh, PA 15212-4756

Mailing address

320 E North Ave
Pittsburgh, PA 15212-4756

Other identifiers 1

IdentifierTypeStateIssuer
047942OtherPAINDIVIDUAL MEDICARE NUMBER

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address wmusser182904@upmc.direct-ci.com

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in PA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20040119000085 PA Practitioner - NeurologyPractitioner - Psychiatry 0840191292 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
NeurologyAlso: Psychiatry
Education
Albany Medical College of Union University, 1992
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Allegheny ClinicGroup PAC ID 5395649586, 2,313 clinicians

Practice addresses (Care Compare)

320 E N Ave
Pittsburgh, PA 15212-4756
Phone (412) 359-3457

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
MD-055122-LPAMDVascular Neurology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Upmc Community Medcine Inc CurrentSince Jan 29, 2014 Accepting new patients
Allegheny Clinic Current Accepting new patients
Allegheny Clinic CurrentSince Oct 1, 2025 Accepting new patients
University of Pittsburgh Physicians Psychiatry CurrentSince Jul 1, 2001 Accepting new patients
University of Pittsburgh Physicians CurrentSince Jul 1, 2001 Accepting new patients
Upmc Community Medicine Inc CurrentSince Jan 29, 2014 Accepting new patients
Upmc Community Medicine, Inc Current Accepting new patients
University of Pittsburgh Physicians Current Accepting new patients
Allegheny Clinic Neurology CurrentSince Oct 1, 2025 Accepting new patients
Cape Neurology PC Neurology PastSince May 1, 2005 Accepting new patients
Windber Hospital, Inc. Past Accepting new patients
Wpic Physician Practice Corp Inc Neurology Past Accepting new patients
Musser Chiropractic, Inc. PastSince May 30, 2007 Accepting new patients

Locations

1275 S Main St
Ste 103
Greensburg, PA 15601
Phone (724) 853-8583

751 Liberty St
Meadville, PA 16335
Phone (814) 333-5081

1910 Cochran Rd
Ste 345
Pittsburgh, PA 15220
Phone (412) 343-2805

2 Hot Metal St
#1
Pittsburgh, PA 15203
Phone (412) 432-5866

320 E North Ave
Pittsburgh, PA 15212
Phone (412) 359-3131

339 6th Ave
Fl 5
Pittsburgh, PA 15222
Phone (412) 560-8762

3471 5th Ave
Ste 810
Pittsburgh, PA 15213
Phone (412) 692-4607

3811 Ohara St
Pittsburgh, PA 15213
Phone (412) 624-2000

3811 Ohara St
#E603
Pittsburgh, PA 15213
Phone (412) 624-2296

532 S Aiken Ave
Ste 507
Pittsburgh, PA 15232
Phone (412) 681-2000

701 Broad St
Ste 431
Sewickley, PA 15143
Phone (412) 741-0966

700 High St
Williamsport, PA 17701
Phone (570) 321-2000

700 High St
#P
Williamsport, PA 17701
Phone (570) 321-2619

Interoperability endpoints

  • Direct secure messaging: william.s.musser@upmcdirect.com
  • Direct secure messaging: wmusser1053032@direct.ahn.org
  • Direct secure messaging: wmusser182904@upmc.direct-ci.com

Organizations & group practices 14

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

View all 14

Hospital & facility affiliations 7

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1129075200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784764800000",
    "number": "1063400208",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "320 E NORTH AVE",
            "city": "PITTSBURGH",
            "state": "PA",
            "postal_code": "152124756"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "320 E NORTH AVE",
            "city": "PITTSBURGH",
            "state": "PA",
            "postal_code": "152124756",
            "telephone_number": "412-359-8850",
            "fax_number": "412-359-8809"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MUSSER",
        "first_name": "WILLIAM",
        "middle_name": "S",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-10-12",
        "last_updated": "2026-07-23",
        "certification_date": "2025-09-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "PA",
            "license": "MD-055122-L",
            "primary": true
        },
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "PA",
            "license": "MD-055122-L",
            "primary": false
        },
        {
            "code": "2084V0102X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Vascular Neurology",
            "state": "PA",
            "license": "MD-055122-L",
            "primary": false
        },
        {
            "code": "2084N0008X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neuromuscular Medicine",
            "state": "PA",
            "license": "MD-055122-L",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "INDIVIDUAL MEDICARE NUMBER",
            "identifier": "047942",
            "state": "PA"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "wmusser182904@upmc.direct-ci.com",
            "affiliation": "N",
            "address_1": "600 Grant St",
            "address_2": "Floor 58",
            "city": "Pittsburgh",
            "state": "PA",
            "country_code": "US",
            "postal_code": "152192702",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Pittsburgh, PA

Sources for this page

Verify at the official NPI Registry.