Ambica Nath Trehan

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

335040 Issued in NY

Practice address

Maimonides Medical Center
4802 10TH Avenue
Brooklyn, NY 11219

Phone

(718) 283-6000

NPI assigned

Apr 5, 2022

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

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 Osteopathy

Practice roles

Locations

Networks

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

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.

• Maimonides Medical Center - MMC Emergency Physicians FPP

  • Emergency Medicine Physician
  • Brooklyn, NY
  • NPI 1982708202
  Medicare reassignment NPD

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

{
    "created_epoch": "1649116800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759449600000",
    "number": "1386385599",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "MAIMONIDES MEDICAL CENTER",
            "address_2": "4802 10TH AVENUE",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "11219",
            "telephone_number": "718-283-6000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "MAIMONIDES MEDICAL CENTER",
            "address_2": "4802 10TH AVENUE",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "11219",
            "telephone_number": "718-283-6000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TREHAN",
        "first_name": "AMBICA",
        "middle_name": "NATH",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2022-04-05",
        "last_updated": "2025-10-03",
        "certification_date": "2025-10-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "NY",
            "license": "335040",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Tree of Life RX Inc
• Susan Brenda Tree, CDR, RD
• William R. Treem, M.D.
• Claire Ruth Trefethen, OTD
• Shaindy Treff, DDS
• Molly Trehey, PA-C
• Andrew Marc Treihaft, MD
• Stuart Allan Treitel, P.A.
• Anneliese Treitmeier-McCarthy
• Barbara Noemi Trejo Ortega, MD

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

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 3, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.