Ernst John Schaefer, M.D.

Primary specialty

Endocrinology, Diabetes & Metabolism PhysicianTaxonomy code 207RE0101X

License

50085 Issued in MA

Practice address

252 Tremont St
Boston, MA 02116-5603

Phone

(781) 258-1454

NPI assigned

Oct 15, 2007

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

Other identifiers 1

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 and National Provider Directory roles.

• Boston Heart Diagnostics Corporation

  • Clinical Medical Laboratory
  • Lenexa, KS
  • NPI 1922259753
  NPD (past)

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

{
    "created_epoch": "1192406400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1192406400000",
    "number": "1083803159",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "711 WASHINGTON ST",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021111524",
            "telephone_number": "617-556-3100"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "252 TREMONT ST",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021165603",
            "telephone_number": "781-258-1454"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SCHAEFER",
        "first_name": "ERNST",
        "middle_name": "JOHN",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2007-10-15",
        "last_updated": "2007-10-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "MA",
            "license": "50085",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "2080478",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Gavin Schaefer-Hood, MD
• Amber Nicole Schaefer, M.S. ED.
• Annika Marie Sysantos Schaefer, MD
• Elizabeth A Schaefer, MD
• Erin K Schaefer
• Esperance Anne Kreek Schaefer, M.D., ,M.P.H.
• Inga-Marie Schaefer, M.D.
• Kristen G. Schaefer, M.D.
• Maximilian Sebastian Schaefer, MD
• Pamela Whitney Schaefer, MD

• Endocrinology, Diabetes & Metabolism Physician in Boston, MA
• Providers in Boston, MA by specialty
• Endocrinology, Diabetes & Metabolism Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 15, 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.