William P Sheahan, PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

085003553 Issued in IL

Practice address

2222 W Division St
#205
Chicago, IL 60622-2717

Phone

(773) 486-8820

Fax

(773) 486-8823

NPI assigned

Dec 1, 2009

Last updated

Sep 8, 2026By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 10

Addresses

Electronic endpoints 2

Medicare fee-for-service enrollment

Enrolled in IL, CT, MA, NY4 enrollments

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 4

Specialty

Physician Assistant

Education

Other, 2009

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Physicians Medical Associates New York PCGroup PAC ID 7618310368, 100 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• St Johns Hospital Hospital, Springfield, IL, CCN 140053

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: wsheahan287648@direct.myadvocateaurora.org
• Direct secure messaging: wsheahan4454426@direct.trinity-health.org
• Direct secure messaging: wsheahanpa369262@carlehiedirect.net

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.

• Physicians Medical Associates New York PC

  • Emergency Medicine Physician
  • Syracuse, NY
  • NPI 1073386421
  Medicare reassignment Care Compare group
• Advocate Health and Hospitals Corporation

  dba Advocate Medical Group

  • Multi-Specialty Clinic/Center
  • Oak Brook, IL
  • NPI 1700824455
  Medicare reassignment NPD
• Vituity-Massachusetts PLLC

  • Emergency Medicine Physician
  • Springfield, MA
  • NPI 1083404313
  Medicare reassignment NPD
• Carle West Physician Group Inc

  • Family Medicine Physician
  • Normal, IL
  • NPI 1467074138
  Medicare reassignment
• Cepamerica Illinois LLP

  • Emergency Medicine Physician
  • Elgin, IL
  • NPI 1912283110
  Medicare reassignment
• Methodist Medical Center of Illinois

  • Emergency Care Clinic/Center
  • Peoria, IL
  • NPI 1265966048
  Medicare reassignment
• Methodist Medical Center of Illinois

  • Rehabilitation Hospital Unit
  • Peoria, IL
  • NPI 1982656575
  Medicare reassignment
• Cep America LLC

  • Emergency Medicine Physician
  • Waterbury, CT
  • NPI 1700681202
  Medicare reassignment
• New York Physician Associates of Medicine PC

  • Emergency Medicine Physician
  • Valhalla, NY
  • NPI 1669329082
  Medicare reassignment
• Advocate Health and Hospitals Corporation

  dba Advocate Children's Hospital

  • Children's Hospital
  • Oak Lawn, IL
  • NPI 1508315516
  NPD
• Cep America Illinois LLP

  • Emergency Medicine Physician
  • Arlington Heights, IL
  • NPI 1487091229
  NPD
• Cepamerica Illinois LLP

  • Emergency Medicine Physician
  • Springfield, IL
  • NPI 1871360297
  NPD

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

• St Johns Hospital of the Hospital Sisters of the Third Order of St F

  dba HSHS St. John's Hospital

  • General Acute Care Hospital
  • Springfield, IL
  • NPI 1205818481
  Care Compare affiliation

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

{
    "created_epoch": "1259625600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788825600000",
    "number": "1326376443",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2222 W DIVISION ST",
            "address_2": "#205",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606222717",
            "telephone_number": "773-486-8820",
            "fax_number": "773-486-8823"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2222 W DIVISION ST",
            "address_2": "#205",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606222717",
            "telephone_number": "773-486-8820",
            "fax_number": "773-486-8823"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "4440 W 95th St",
            "address_purpose": "LOCATION",
            "city": "Oak Lawn",
            "state": "IL",
            "postal_code": "604532600",
            "country_code": "US",
            "telephone_number": "708-684-5354",
            "fax_number": "708-684-1028",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SHEAHAN",
        "first_name": "WILLIAM",
        "middle_name": "P",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2009-12-01",
        "last_updated": "2026-09-08",
        "certification_date": "2026-09-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CT",
            "license": "7034",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "MA",
            "license": "PA101871",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "FL",
            "license": "PA9120096",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "IN",
            "license": "10004845A",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "IA",
            "license": "128775",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "NY",
            "license": "033905",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "VA",
            "license": "0110010515",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "IL",
            "license": "085003553",
            "primary": true
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "SC",
            "license": "5621",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "PA",
            "license": "MA066477",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "4440 W 95th St",
            "city": "Oak Lawn",
            "state": "IL",
            "country_code": "US",
            "postal_code": "604532600",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "wsheahan287648@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "4440 W 95th St",
            "city": "Oak Lawn",
            "state": "IL",
            "country_code": "US",
            "postal_code": "604532600",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

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• John Newcomb Sheagren, M.D.
• Catherine M Sheahan, M.S. CCC-SLP
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• Talia Shear
• Latonya Shearer
• Brittany Shearin, LCSW
• Marie E Shebeck, LCSW

• Physician Assistant in Chicago, IL
• Providers in Chicago, IL by specialty
• Physician Assistant in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 8, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.