William Fitzgerald Demas, M.D., F.A.C.R.

Primary specialty

Radiation Oncology PhysicianTaxonomy code 2085R0001X

License

35-054294 Issued in OH

Practice address

525 E Market St
Akron, OH 44304-1619

Phone

(330) 375-3557

Fax

(337) 376-1302

NPI assigned

Nov 4, 2005

Sex

Male

Sole proprietor

No

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

• Midwest Community Health Associates, Inc.

  • Family Medicine Physician
  • Bryan, OH
  • NPI 1619915170

  OH

  Medicare reassignment Care Compare group NPD
• University Primary Care Practices Inc

  • Gastroenterology Physician
  • Mentor, OH
  • NPI 1003935339

  OH

  Medicare reassignment Care Compare group NPD
• Icahn School of Medicine at Mount Sinai

  • Orthopaedic Surgery Physician
  • Elmhurst, NY
  • NPI 1609120674

  NY

  Medicare reassignment NPD
• Physician Affiliate Group of New York PC

  • Registered Dietitian
  • New York, NY
  • NPI 1013375526

  NY

  Medicare reassignment NPD
• University Primary Care Practices Inc

  • Orthopaedic Surgery Physician
  • Oberlin, OH
  • NPI 1982727087
  Care Compare group NPD
• Mercy Health Physicians Lima Specialty Care LLC

  • Surgery Physician
  • Lima, OH
  • NPI 1518589803

  OH

  Medicare reassignment
• Downtown Bronx Medical Associates PC

  • Emergency Medical Services (Emergency Medicine) Physician
  • Bronx, NY
  • NPI 1689618407

  NY

  Medicare reassignment
• Olean General Hospital

  • General Practice Physician
  • Bradford, PA
  • NPI 1649296781

  NY

  Medicare reassignment
• University Primary Care Practices Inc

  • Orthopaedic Surgery Physician
  • Amherst, OH
  • NPI 1932953056
  Care Compare group
• University Primary Care Practices, Inc.

  • Orthopaedic Surgery Physician
  • North Olmsted, OH
  • NPI 1184366288
  Care Compare group
• University Primary Care Practices, Inc.

  • Orthopaedic Surgery Physician
  • North Ridgeville, OH
  • NPI 1184753469
  Care Compare group
• University Primary Care Practices, Inc.

  • Orthopaedic Surgery Physician
  • Sheffield Village, OH
  • NPI 1508307109
  Care Compare group

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

• Community Hospitals and Wellness Centers

  • General Acute Care Hospital
  • Bryan, OH
  • NPI 1962458521

  Hospital

  Care Compare affiliation
• Salem Community Hospital

  • General Acute Care Hospital
  • Salem, OH
  • NPI 1639131535

  Hospital

  Care Compare affiliation
• Salem Community Hospital

  • Radiology Clinic/Center
  • Calcutta, OH
  • NPI 1750227377

  Hospital

  Care Compare affiliation

Specialty

Radiation Oncology

Education

State University of New York Downstate Medical Center, 1981

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

University Primary Care Practices Inc 1,071 clinicians

Midwest Community Health Associates, Inc. 100 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Community Hospitals and Wellness Centers Hospital, Bryan, OH, CCN 360121
• Salem Regional Medical Center Hospital, Salem, OH, CCN 360185

Medicare fee-for-service enrollment

Enrolled in OH, NY2 enrollments

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 2

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles (16 of 20)

Locations

Networks

• Healthfirst Medicare Network H3359
• Healthfirst Medicare Network H5989
• Healthfirst Medicare Network H9678
• Healthfirst Medicare Network H1722

Interoperability endpoints

• Direct secure messaging: wdemas36883@ehrdirect.uhhospitals.org
• Direct secure messaging: wdemas3599853@nychhc.direct-ci.com
• Direct secure messaging: wdemas688586@direct.parkviewexchange.com
• Direct secure messaging: williamdemas@uhhs.allscriptsdirect.net

The complete NPPES record for this NPI in the NPI Registry API format, last updated by the provider on Dec 2, 2025.

{
    "created_epoch": "1131062400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1764633600000",
    "number": "1033100334",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "75 ARCH ST STE 410",
            "city": "AKRON",
            "state": "OH",
            "postal_code": "443041433",
            "telephone_number": "330-376-0928",
            "fax_number": "330-376-1302"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "525 E MARKET ST",
            "city": "AKRON",
            "state": "OH",
            "postal_code": "443041619",
            "telephone_number": "330-375-3557",
            "fax_number": "337-376-1302"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "524 W High St",
            "address_purpose": "LOCATION",
            "city": "Bryan",
            "state": "OH",
            "postal_code": "435061618",
            "country_code": "US",
            "telephone_number": "419-636-9800",
            "fax_number": "419-636-0451",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DEMAS",
        "first_name": "WILLIAM",
        "middle_name": "FITZGERALD",
        "credential": "M.D., F.A.C.R.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-11-04",
        "last_updated": "2025-12-02",
        "certification_date": "2025-12-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "OH",
            "license": "35-054294",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "0636879",
            "state": "OH"
        }
    ],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicprod-mobile.parkview.com/FHIR/api/FHIR/R4/",
            "affiliation": "N",
            "address_1": "524 W High St",
            "city": "Bryan",
            "state": "OH",
            "country_code": "US",
            "postal_code": "435061618",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "wdemas688586@Direct.Parkviewexchange.com",
            "affiliation": "N",
            "address_1": "524 W High St",
            "city": "Bryan",
            "state": "OH",
            "country_code": "US",
            "postal_code": "435061618",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicprod-mobile.parkview.com/FHIR/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "524 W High St",
            "city": "Bryan",
            "state": "OH",
            "country_code": "US",
            "postal_code": "435061618",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Kenzie Marie Delposen
• Amie Deluca
• Meridith Deluca, MD
• Michael A Delucia, M.D.
• Carin Lynn Delzoppo, APRN-CNP
• Robert Joseph Demboski, DDS
• John Walter Dembowski, COUNSELOR
• John Demell
• Karli Irene Demell
• Lisa Ann Dement, MACCCSLP

• All providers in Akron, OH
• Radiation Oncology Physician in Ohio

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 2, 2025; 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.