Stefan J Antosiewicz, MD

Primary specialty

Diagnostic Radiology PhysicianTaxonomy code 2085R0202X

License

MT236019 Issued in PA

Practice address

1200 S Cedar Crest Blvd Ste 203
Allentown, PA 18103-6202

Phone

(610) 402-1033

NPI assigned

Jun 8, 2018

Last updated

Apr 24, 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 1

Addresses

Medicare fee-for-service enrollment

Enrolled in PA

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 1

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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

{
    "created_epoch": "1528416000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776988800000",
    "number": "1710470315",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "64 LAFAYETTE ST APT 1",
            "city": "JERSEY CITY",
            "state": "NJ",
            "postal_code": "073047002",
            "telephone_number": "732-586-7354"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1200 S CEDAR CREST BLVD STE 203",
            "city": "ALLENTOWN",
            "state": "PA",
            "postal_code": "181036202",
            "telephone_number": "610-402-1033"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ANTOSIEWICZ",
        "first_name": "STEFAN",
        "middle_name": "J",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2018-06-08",
        "last_updated": "2026-04-24",
        "certification_date": "2026-04-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "PA",
            "license": "MT236019",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Brianna Annunziata, PA-C
• Anthony Palmisano
• Julie N. Antidormi, CRNA
• Manassi Timothy Antonis, DDS
• Amanda Antonucci
• Masood Anwar, MD
• Alexander Anzelmi
• Syed Ali Aown, M.D
• Michael E Apgar, LSW
• Apr Neurology Associates

• Diagnostic Radiology Physician in Allentown, PA
• Providers in Allentown, PA by specialty
• Diagnostic Radiology Physician in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 24, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.