Thomas Ptak, MD PHD

Primary specialty

Diagnostic Radiology PhysicianTaxonomy code 2085R0202X

License

MD487489 Issued in PA

Practice address

55 Lake Ave N
Worcester, MA 01655-0002

Phone

(508) 334-3850

NPI assigned

Dec 5, 2005

Sex

Male

Sole proprietor

No

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

Specialties & licenses 4

Addresses

Other identifiers 2

Medicare fee-for-service enrollment

Enrolled in MA, MD, DC, PA4 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 4

Specialty

Diagnostic Radiology

Education

Other, 1990

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Umass Memorial Medical Group IncGroup PAC ID 4284539891, 2,494 clinicians

Medical Imaging of Lehigh Valley PCGroup PAC ID 1557265212, 115 clinicians

Wellspan Medical GroupGroup PAC ID 1951213115, 2,438 clinicians

University of Maryland Diagnostic Imaging Specialists P aGroup PAC ID 7719873298, 81 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Umass Memorial Medical Center/University Campus Hospital, Worcester, MA, CCN 220163
• Gettysburg Hospital Hospital, Gettysburg, PA, CCN 390065
• Wellspan Good Samaritan Hospital Hospital, Lebanon, PA, CCN 390066
• Umass Memorial Healthalliance Hospitals Hospital, Leominster, MA, CCN 220001
• Wellspan York Hospital Hospital, York, PA, CCN 390046

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine, Doctor of Philosophy

State licenses

Practice roles

Locations (25 of 97)

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.

• Umass Memorial Medical Group Inc

  • Internal Medicine Physician
  • Worcester, MA
  • NPI 1760445373

  MD

  Medicare reassignment Care Compare group NPD
• Medical Imaging of Lehigh Valley PC

  • Diagnostic Radiology Physician
  • Allentown, PA
  • NPI 1134178023

  MD

  Medicare reassignment Care Compare group NPD
• University of Maryland Diagnostic Imaging Specialists P a

  • Diagnostic Radiology Physician
  • Baltimore, MD
  • NPI 1154335487

  DC, Neuroradiology

  Medicare reassignment Care Compare group NPD
• Wellspan Medical Group

  dba WellSpan Digestive Health

  • Gastroenterology Physician
  • York, PA
  • NPI 1669770004
  Medicare reassignment Care Compare group
• University Imaging Center, LLC

  • Diagnostic Radiology Physician
  • Baltimore, MD
  • NPI 1245245307

  Neuroradiology

  Medicare reassignment NPD
• University of Maryland Diagnostic Radiology, LLC

  • Diagnostic Radiology Physician
  • La Plata, MD
  • NPI 1467996959

  Neuroradiology

  Medicare reassignment NPD
• Umass Memorial Radiology Phys Serv

  • Diagnostic Radiology Physician
  • Worcester, MA
  • NPI 1639122096

  MD

  Medicare reassignment
• Umass Memorial Medical Group, Inc.

  dba Urgent Care Express at Harrington

  • Urgent Care Clinic/Center
  • Oxford, MA
  • NPI 1982381018
  NPD
• Umass Memorial MRI - Marlborough

  • Magnetic Resonance Imaging (MRI) Clinic/Center
  • Marlborough, MA
  • NPI 1457300584
  NPD
• Lehigh Valley Physician Group

  dba LVPG Family and Internal Medicine - East Stroudsburg

  • Family Medicine Physician
  • East Stroudsburg, PA
  • NPI 1245093368
  NPD
• Lehigh Valley Physician Group

  • Transplant Surgery Physician
  • Allentown, PA
  • NPI 1457309650
  NPD
• Lehigh Valley Physician Group

  dba LVPG Physiatry

  • Physical Medicine & Rehabilitation Physician
  • Allentown, PA
  • NPI 1588719835
  NPD

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

• Umass Memorial Healthalliance Clinton Hospital Inc

  • General Acute Care Hospital
  • Leominster, MA
  • NPI 1013995133
  Care Compare affiliation
• Umass Memorial Healthalliance Clinton Hospital Inc

  • Psychiatric Hospital Unit
  • Clinton, MA
  • NPI 1285171934
  Care Compare affiliation
• Umass Memorial Medical Center, Inc.

  • General Acute Care Hospital
  • Worcester, MA
  • NPI 1831151455
  Care Compare affiliation
• The Gettysburg Hospital

  dba WellSpan Gettysburg Hospital SPU

  • Ambulatory Surgical Clinic/Center
  • Gettysburg, PA
  • NPI 1184882011

  Hospital

  Care Compare affiliation
• The Gettysburg Hospital

  • General Acute Care Hospital
  • Gettysburg, PA
  • NPI 1265466957
  Care Compare affiliation
• The Good Samaritan Hospital of Lebanon, Pennsylvania

  dba WellSpan Good Samaritan Hospital

  • Ambulatory Surgical Clinic/Center
  • Lebanon, PA
  • NPI 1205902343

  Hospital

  Care Compare affiliation
• The Good Samaritan Hospital of Lebanon, Pennsylvania

  dba WellSpan Good Samaritan Hospital

  • General Acute Care Hospital
  • Lebanon, PA
  • NPI 1407928500
  Care Compare affiliation
• The Good Samaritan Hospital of Lebanon, Pennsylvania

  dba WellSpan Good Samaritan Hospital

  • Emergency Medicine Physician
  • Lebanon, PA
  • NPI 1730754284

  Hospital

  Care Compare affiliation
• York Hospital

  • General Acute Care Hospital
  • York, PA
  • NPI 1326060492
  Care Compare affiliation
• York Hospital

  dba York Hospital Community Health Center

  • Clinic/Center
  • York, PA
  • NPI 1497814040

  Hospital

  Care Compare affiliation
• York Hospital

  dba WellSpan York Hospital OB/GYN

  • Clinic/Center
  • York, PA
  • NPI 1609112036

  Hospital

  Care Compare affiliation
• York Hospital

  • Family Medicine Physician
  • York, PA
  • NPI 1881617132

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1133740800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779321600000",
    "number": "1467436394",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 415348",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "022415348",
            "telephone_number": "800-225-8885",
            "fax_number": "508-334-1977"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "55 LAKE AVE N",
            "city": "WORCESTER",
            "state": "MA",
            "postal_code": "016550002",
            "telephone_number": "508-334-3850"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "252 S 4th St",
            "address_purpose": "LOCATION",
            "city": "Lebanon",
            "state": "PA",
            "postal_code": "170426111",
            "country_code": "US",
            "telephone_number": "717-270-7732",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "35 Erick Rd",
            "address_purpose": "LOCATION",
            "city": "Lancaster",
            "state": "PA",
            "postal_code": "176013111",
            "country_code": "US",
            "telephone_number": "717-690-0785",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "460 N Reading Rd",
            "address_purpose": "LOCATION",
            "city": "Ephrata",
            "state": "PA",
            "postal_code": "175229606",
            "country_code": "US",
            "telephone_number": "717-721-4840",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "36 Robinhood Dr",
            "address_purpose": "LOCATION",
            "city": "Etters",
            "state": "PA",
            "postal_code": "173199528",
            "country_code": "US",
            "telephone_number": "717-388-7300",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1201 Letort Springs Way",
            "address_purpose": "LOCATION",
            "city": "Carlisle",
            "state": "PA",
            "postal_code": "170158011",
            "country_code": "US",
            "telephone_number": "717-674-7600",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "35 Monument Rd Ste 201",
            "address_purpose": "LOCATION",
            "city": "York",
            "state": "PA",
            "postal_code": "174035074",
            "country_code": "US",
            "telephone_number": "717-812-4083",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "22 S Greene St Rm S2A19",
            "address_purpose": "LOCATION",
            "city": "Baltimore",
            "state": "MD",
            "postal_code": "212011544",
            "country_code": "US",
            "telephone_number": "410-328-3477",
            "fax_number": "410-328-1190",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "169 Martin Ave",
            "address_purpose": "LOCATION",
            "city": "Ephrata",
            "state": "PA",
            "postal_code": "175221734",
            "country_code": "US",
            "telephone_number": "717-738-6414",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "112 N 7th St",
            "address_purpose": "LOCATION",
            "city": "Chambersburg",
            "state": "PA",
            "postal_code": "172011720",
            "country_code": "US",
            "telephone_number": "717-262-4499",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "14781 Wolfe Rd",
            "address_purpose": "LOCATION",
            "city": "New Freedom",
            "state": "PA",
            "postal_code": "173499571",
            "country_code": "US",
            "telephone_number": "717-326-1880",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "147 Gettys St",
            "address_purpose": "LOCATION",
            "city": "Gettysburg",
            "state": "PA",
            "postal_code": "173252534",
            "country_code": "US",
            "telephone_number": "717-337-4207",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "PTAK",
        "first_name": "THOMAS",
        "name_prefix": "Dr.",
        "credential": "MD PHD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-12-05",
        "last_updated": "2026-05-21",
        "certification_date": "2026-05-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "MA",
            "license": "74590",
            "primary": false
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "PA",
            "license": "MD487489",
            "primary": true
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "MD",
            "license": "D0083946",
            "primary": false
        },
        {
            "code": "2085N0700X",
            "taxonomy_group": "",
            "desc": "Radiology, Neuroradiology",
            "state": "MD",
            "license": "D0083946",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "889007200",
            "state": "MD"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "091658433",
            "state": "DC"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Aviva Marta Pruzinsky, OTR/L
• Jenelle Pryce
• Amber Pryzbylski, MS, CGC
• Charles M Psoinos, M.D.
• Psychotherapy Associates of Worcester Inc
• Victoria Puello
• Heather Puente
• Joseph M Pugleasa, M.D.
• Joan Frances Puglia, M.D.
• Elefteria Puka, D.O.

• Diagnostic Radiology Physician in Worcester, MA
• Providers in Worcester, MA by specialty
• Diagnostic Radiology Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 21, 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.