William Steven Mark, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

012108E Issued in PA

Practice address

143 Church St
Phoenixville, PA 19460-3438

Phone

(610) 935-1134

Fax

(610) 935-8191

NPI assigned

May 23, 2007

Last updated

Jul 8, 2007By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

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.

• Great Valley Medical Associates, PC

  dba Great Valley Medical Associates

  • Internal Medicine Physician
  • Paoli, PA
  • NPI 1306815048
  NPD (past)

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

{
    "created_epoch": "1179878400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1183852800000",
    "number": "1396955522",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "26 SALEM WAY",
            "city": "MALVERN",
            "state": "PA",
            "postal_code": "193559705",
            "telephone_number": "610-296-2506",
            "fax_number": "610-647-5133"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "143 CHURCH ST",
            "city": "PHOENIXVILLE",
            "state": "PA",
            "postal_code": "194603438",
            "telephone_number": "610-935-1134",
            "fax_number": "610-935-8191"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MARK",
        "first_name": "WILLIAM",
        "middle_name": "STEVEN",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2007-05-23",
        "last_updated": "2007-07-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "PA",
            "license": "012108E",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Stanley R. Mantell, D.D.S
• Melissa Spinella Manzon, LCSW
• Courtney Marcellus
• Robert Mariani, D.M.D.
• Talin Elizabeth Marino, AUD
• Jessica A Marks, MSW, LCSW
• Hannah Marley
• Katama Martellucci
• Christopher W Martin, MD
• Jordan Martin

• Internal Medicine Physician in Phoenixville, PA
• Providers in Phoenixville, PA by specialty
• Internal Medicine Physician in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 8, 2007; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.