Colin A Sieff, MB, BCH

Primary specialty

Pediatric Hematology & Oncology PhysicianTaxonomy code 2080P0207X

License

73641 Issued in MA

Practice address

300 Longwood Ave
Fegan 7
Boston, MA 02115-5724

Phone

(617) 258-5228

Fax

(617) 258-6768

NPI assigned

Oct 20, 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 MA

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

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: csieff21903@direct.bostonchildrens.org

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.

• Children's Hospital Pediatric Associates, Inc

  • Pediatrics Physician
  • Boston, MA
  • NPI 1457306664

  Pediatric Hematology-Oncology

  Medicare reassignment NPD

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

{
    "created_epoch": "1161302400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1183852800000",
    "number": "1942382635",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "45 ORCHARD AVE",
            "city": "WABAN",
            "state": "MA",
            "postal_code": "024682001",
            "telephone_number": "617-527-1417"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "300 LONGWOOD AVE",
            "address_2": "FEGAN 7",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021155724",
            "telephone_number": "617-258-5228",
            "fax_number": "617-258-6768"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIEFF",
        "first_name": "COLIN",
        "middle_name": "A",
        "name_prefix": "Dr.",
        "credential": "MB, BCH",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-10-20",
        "last_updated": "2007-07-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2080P0207X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Hematology-Oncology",
            "state": "MA",
            "license": "73641",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "3087440",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Christine Barrett Sieberg Madariaga, PHD
• Tatum Siebert, M.ED
• Mark Jacob Siedner, MD
• Amanda Elyse Sieferman, ED.M.
• Caleb J Siefert, PHD
• Alanna Kristina Siegal
• Ariel Siegel
• Ashley Emily Siegel, MD
• Ava Siegel
• Benjamin S Siegel, MD

• Pediatric Hematology & Oncology Physician in Boston, MA
• Providers in Boston, MA by specialty
• Pediatric Hematology & Oncology Physician in Massachusetts

• 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.
• 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.