Amanda Halstrom Marcus, MD

Primary specialty

Endocrinology, Diabetes & Metabolism PhysicianTaxonomy code 207RE0101X

License

309682 Issued in NY

Practice address

1111 Franklin Ave
Garden City, NY 11530-1617

Phone

(516) 663-3511

NPI assigned

May 23, 2017

Last updated

Nov 13, 2025By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

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.

Opted out of Medicare

Yes, effective May 18, 2023 through May 18, 2027

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• Healthfirst Medicare Network H9678

Interoperability endpoints

• Direct secure messaging: ahalstrom230775@nyumc.direct-ci.com

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.

• CKM Medical PLLC

  dba Well by Messer

  • Multi-Specialty Clinic/Center
  • New York, NY
  • NPI 1801540919
  NPD

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

{
    "created_epoch": "1495497600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762992000000",
    "number": "1972031805",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1111 FRANKLIN AVE",
            "city": "GARDEN CITY",
            "state": "NY",
            "postal_code": "115301617",
            "telephone_number": "516-663-3511"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1111 FRANKLIN AVE",
            "city": "GARDEN CITY",
            "state": "NY",
            "postal_code": "115301617",
            "telephone_number": "516-663-3511"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MARCUS",
        "first_name": "AMANDA",
        "middle_name": "HALSTROM",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2017-05-23",
        "last_updated": "2025-11-13",
        "certification_date": "2025-11-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "NY",
            "license": "309682",
            "primary": true
        },
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "CT",
            "license": "83169",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Marc Agulnick, MD, LLC
• Marc J Yunis MD PC
• Marc S Behar MD PC
• Robert John Marchlewski, M.D.
• Deborah Marciano, DO
• Margaret Mulligan Psychologist PLLC
• Lorraine Alice Marin, M.D.
• Richard Thomas Marino III, PA-C
• Mark Fleckner M.D., P.C.
• Mark N. Goldstein M.D., P.C.

• Endocrinology, Diabetes & Metabolism Physician in Garden City, NY
• Providers in Garden City, NY by specialty
• Endocrinology, Diabetes & Metabolism Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 13, 2025; 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; Opt Out Affidavits.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.