Individual provider Active NPI

Thomas Mastakouris, M.D

  • Internal Medicine Physician
  • Astoria, NY
National Provider Identifier
1144277443
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
187418 Issued in NY
Practice address
3010 38TH St
Astoria, NY 11103-3804
Phone
(718) 545-2020
Fax
(718) 932-9131
NPI assigned
May 30, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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 187418 NY Primary

Addresses

Primary practice location

3010 38TH St
Astoria, NY 11103-3804

Mailing address

3010 38TH St
Astoria, NY 11103-3804
Phone (718) 545-2020

Other identifiers 1

IdentifierTypeStateIssuer
01415952MedicaidNY

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY
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

Enrollment IDStateProvider typePAC IDDetails
I20051116000042 NY Practitioner - Internal Medicine 6901825314 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Other, 1987
Medicare assignment
May accept Medicare assignment
Group practices
Astoria Healthcare Associates LLPGroup PAC ID 5991724395, 2 clinicians

Practice addresses (Care Compare)

3010 38TH St
FL 2
Astoria, NY 11103-3804
Phone (718) 545-2020

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
187418NYMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Astoria Healthcare Associates LLP CurrentSince Jul 26, 2005 Accepting new patients
Steinway Advanced Medical P.C PastSince Jul 1, 2010 Accepting new patients

Locations

3010 38th St
Fl 2
Long Island City, NY 11103
Phone (718) 278-7376

Networks

  • Healthfirst Medicare Network H3359

Organizations & group practices 2

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.

Hospital & facility affiliations 3

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1148947200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1144277443",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3010 38TH ST",
            "city": "ASTORIA",
            "state": "NY",
            "postal_code": "111033804",
            "telephone_number": "718-545-2020",
            "fax_number": "718-932-9131"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3010 38TH ST",
            "city": "ASTORIA",
            "state": "NY",
            "postal_code": "111033804",
            "telephone_number": "718-545-2020",
            "fax_number": "718-932-9131"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MASTAKOURIS",
        "first_name": "THOMAS",
        "credential": "M.D",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-30",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "187418",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "01415952",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Astoria, NY

Sources for this page

Verify at the official NPI Registry.