Erin Marie Duenas, MS, RDN, CDN

Primary specialty

Registered DietitianTaxonomy code 133V00000X

License

013336 Issued in NY

Practice address

12 1St St
Riverhead, NY 11901-4602

Phone

(631) 740-9330

Fax

(631) 640-9330

NPI assigned

May 13, 2026

Last updated

May 13, 2026By 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 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Master of Science

Practice roles

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.

• East End Nutrition, PLLC

  • Registered Dietitian
  • Riverhead, NY
  • NPI 1770986796

  Dietitian, Registered

  NPD (past)

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

{
    "created_epoch": "1778630400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778630400000",
    "number": "1396673729",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "12 1ST ST",
            "city": "RIVERHEAD",
            "state": "NY",
            "postal_code": "119014602",
            "telephone_number": "631-740-9330",
            "fax_number": "631-640-9330"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "12 1ST ST",
            "city": "RIVERHEAD",
            "state": "NY",
            "postal_code": "119014602",
            "telephone_number": "631-740-9330",
            "fax_number": "631-640-9330"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DUENAS",
        "first_name": "ERIN",
        "middle_name": "MARIE",
        "credential": "MS, RDN, CDN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2026-05-13",
        "last_updated": "2026-05-13",
        "certification_date": "2026-05-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "133V00000X",
            "taxonomy_group": "",
            "desc": "Dietitian, Registered",
            "state": "NY",
            "license": "013336",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Dr. Bellamy Brook DO PC
• Dr. Gerald a. Esmond, DPM,PC
• Dr. Gregory P Doroski DMD
• Dr. Judith Magloczki, D.O., P.C.
• Teresa Duda, RN
• Gregory Edward Dunn, MSPT, OCS
• Joseph M Duva, MD
• Anne Vasilas Dwoskin, ANP
• Theresa M. Dyer, LCSW-R
• East End Allergy and Asthma Care, PC

• Registered Dietitian in Riverhead, NY
• Providers in Riverhead, NY by specialty
• Registered Dietitian in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.