Maria Lynn Ostafew

Primary specialty

Registered DietitianTaxonomy code 133V00000X

License

86172324 Issued in NY

Practice address

1825 Maple Rd Ste 110
Williamsville, NY 14221-2723

Phone

(716) 704-0684

NPI assigned

Mar 13, 2023

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

Opted out of Medicare

Yes, effective Feb 23, 2026 through Feb 23, 2028

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

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.

• Buffalo Nutrition & Dietetics, PLLC

  • Registered Dietitian
  • Grand Island, NY
  • NPI 1235663212

  Dietitian, Registered

  NPD
• United Nutrition & Dietetics, PLLC

  • Registered Dietitian
  • Grand Island, NY
  • NPI 1932881372

  Dietitian, Registered

  NPD

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

{
    "created_epoch": "1678665600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772236800000",
    "number": "1205537636",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 831",
            "city": "GRAND ISLAND",
            "state": "NY",
            "postal_code": "140720831",
            "telephone_number": "716-704-0684",
            "fax_number": "716-625-1236"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1825 MAPLE RD STE 110",
            "city": "WILLIAMSVILLE",
            "state": "NY",
            "postal_code": "142212723",
            "telephone_number": "716-704-0684"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3980 Sheridan Dr Ste 401",
            "address_purpose": "LOCATION",
            "city": "Amherst",
            "state": "NY",
            "postal_code": "142261727",
            "country_code": "US",
            "telephone_number": "716-704-0684",
            "fax_number": "716-625-1236",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "OSTAFEW",
        "first_name": "MARIA",
        "middle_name": "LYNN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2023-03-13",
        "last_updated": "2026-02-28",
        "certification_date": "2026-02-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "133V00000X",
            "taxonomy_group": "",
            "desc": "Dietitian, Registered",
            "state": "NY",
            "license": "86172324",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Christina Osborne, FNP
• Jenny Louise Osburn, RN
• Dennis Osiak
• Chelsea Kay Osman
• Magda G Osman, MD
• Jessica Oswald, PA-C
• Wendy Ouellette, CRNA
• Andrea Marie Overturf, NP
• Alexandra Bri Owczarzak, DC, MSES
• Cheryl Lynn Owczarzak, PA-C

• Registered Dietitian in Williamsville, NY
• Providers in Williamsville, 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 Feb 28, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Opt Out Affidavits.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.