William Sterious, MD

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

MD072708L Issued in PA

Practice address

130 South Bryn Mawr Avenue
Bryn Mawr, PA 19010

Phone

(610) 526-3583

Fax

(610) 526-3614

NPI assigned

Feb 16, 2006

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

Other identifiers 1

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

Practice roles

Locations

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.

• Main Line Emergency Med Associates LLC

  • Emergency Medicine Physician
  • Paoli, PA
  • NPI 1316919368
  Medicare reassignment NPD

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

{
    "created_epoch": "1140048000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1801860663",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 3012",
            "city": "WILMINGTON",
            "state": "DE",
            "postal_code": "19804",
            "telephone_number": "800-456-4629",
            "fax_number": "302-224-2848"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "130 SOUTH BRYN MAWR AVENUE",
            "city": "BRYN MAWR",
            "state": "PA",
            "postal_code": "19010",
            "telephone_number": "610-526-3583",
            "fax_number": "610-526-3614"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "STERIOUS",
        "first_name": "WILLIAM",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-02-16",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "PA",
            "license": "MD072708L",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "0018748080002",
            "state": "PA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• John Steers, MD
• Gina Marie Stefanelli, D.O.
• Neza Lee Stefanic
• Emma Stein, NCC
• Stephen J Gershberg DMD PC
• Matthew E Sterling, MD
• Kendall Stokes, RDN, LDN, SNS
• David S. Stolzenberg, D.O.
• Margaret M Stone, CMW
• Sarah Abramson Stoots, M.D.

• Emergency Medicine Physician in Bryn Mawr, PA
• Providers in Bryn Mawr, PA by specialty
• Emergency Medicine Physician in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.