George M Malegiannakis, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

224662 Issued in NY

Practice address

1811 Avenue P
Suite # 1a
Brooklyn, NY 11229-1303

Phone

(718) 375-7595

Fax

(718) 375-7559

NPI assigned

Mar 24, 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 2

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• Healthfirst Medicare Network H5989
• Healthfirst Medicare Network H9678
• Healthfirst Medicare Network H1722
• Healthfirst Medicare Network H3359

Interoperability endpoints

• Direct secure messaging: george.malegiannakis.p1@direct.mmc.nextgenshare.com
• Direct secure messaging: georgemalegiannakis@mai.allscriptsdirect.net
• Direct secure messaging: gmalegiannakis@1100.mdlanddirect.com

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.

• Hasc Diagnostic &Treatment Center, Inc

  • Federally Qualified Health Center (FQHC)
  • Brooklyn, NY
  • NPI 1902872591
  Medicare reassignment NPD
• Hasc Diagnostic & Treatment Center, Inc

  • Federally Qualified Health Center (FQHC)
  • Brooklyn, NY
  • NPI 1790678647
  NPD
• Maimonides Medical Center

  • General Acute Care Hospital
  • Brooklyn, NY
  • NPI 1093777492
  NPD
• Hasc Diagnostic & Treatment Center, Inc

  • Federally Qualified Health Center (FQHC)
  • Brooklyn, NY
  • NPI 1326519612
  NPD (past)
• Maimonides Medical Center Maimonides Primary Care FPP

  • Internal Medicine Physician
  • Brooklyn, NY
  • NPI 1013968593
  NPD (past)
• Mercy Home for Children, Inc.,

  • Intellectual Disabilities Intermediate Care Facility
  • Rosedale, NY
  • NPI 1053580589
  NPD (past)

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

{
    "created_epoch": "1143158400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1376503383",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1811 AVENUE P",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "112291303",
            "telephone_number": "718-375-7595",
            "fax_number": "718-375-7559"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1811 AVENUE P",
            "address_2": "SUITE # 1A",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "112291303",
            "telephone_number": "718-375-7595",
            "fax_number": "718-375-7559"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MALEGIANNAKIS",
        "first_name": "GEORGE",
        "middle_name": "M",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-03-24",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "224662",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "LICENSE",
            "identifier": "224662",
            "state": "NY"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "02499338",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Marleni Maldonado, LCSW
• Melina Maldonado
• Melinda Maldonado, LCSW-R, CASAC
• Moises Maldonado, R.P.A.
• Rachel Davidson Maldonado, PSY.D.
• Esther M Maleh, MS, RD, CDN
• Barri Janeen Malek, CNM
• Chaya Sara Malek, MS CCC-SLP
• Cynthia Malek, LMFT
• Perri Malek, DMD

• Internal Medicine Physician in Brooklyn, NY
• Providers in Brooklyn, NY by specialty
• Internal Medicine Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; 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.