Individual provider Active NPI

Siamak Malek, M.D.

  • Internal Medicine Physician
  • Boston, MA
National Provider Identifier
1174716286
Registry record updated Apr 7, 2017
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
MD434166 Issued in PA
Practice address
165 Cambridge St
5TH Floor
Boston, MA 02114-2783
Phone
(617) 726-4900
NPI assigned
Aug 22, 2007
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 7, 2017

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X MD434166 PA Primary

Addresses

Primary practice location

165 Cambridge St
5TH Floor
Boston, MA 02114-2783

Mailing address

165 Cambridge St
5TH Floor
Boston, MA 02114-2783
Phone (617) 726-4900

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA, TX2 enrollments
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 2

Enrollment IDStateProvider typePAC IDDetails
I20170203000416 MA Practitioner - Internal Medicine 2769553528 Reassigns benefits to 2 organizations
I20240418002113 TX Practitioner - Internal Medicine 2769553528 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Other, 2005
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Rosebud Indian Health ServiceGroup PAC ID 6901704055, 76 clinicians

Practice addresses (Care Compare)

400 Soldier Creek Dr
Rosebud, SD 57570-8502
Phone (918) 457-8945

PO Box
Suite 400
Rosebud, SD 57570

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
MD434166PAMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
General Hospital Corp Current Accepting new patients
Rosebud Indian Health Service CurrentSince Apr 1, 2024 Accepting new patients
Rosebud Indian Health Service CurrentSince Apr 1, 2024 Accepting new patients
Massachusetts General Physicians Organization Inc Internal Medicine CurrentSince Mar 9, 2017 Accepting new patients
The General Hospital Corporation CurrentSince Mar 9, 2017 Accepting new patients

Locations

55 Fruit St
Boston, MA 02114

55 Fruit St
#2
Boston, MA 02114
Phone (617) 726-2967

165 Cambridge St
Fl 5
Boston, MA 02114
Phone (617) 726-4600

Interoperability endpoints

  • Direct secure messaging: malek.siamak.mgh@direct.partners.masshiway.net

Organizations & group practices 5

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.

NPI Registry JSON

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

{
    "created_epoch": "1187740800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1491523200000",
    "number": "1174716286",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "165 CAMBRIDGE ST",
            "address_2": "5TH FLOOR",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021142783",
            "telephone_number": "617-726-4900"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "165 CAMBRIDGE ST",
            "address_2": "5TH FLOOR",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021142783",
            "telephone_number": "617-726-4900"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MALEK",
        "first_name": "SIAMAK",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-08-22",
        "last_updated": "2017-04-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "PA",
            "license": "MD434166",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.