Individual provider Active NPI

Hillary Ann Oneto Buch

  • Registered Dietitian
  • Casa Grande, AZ
National Provider Identifier
1871951582
Registry record updated Aug 4, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Registered DietitianTaxonomy code 133V00000X
License
3236 Issued in LA
Practice address
1281 E Cottonwood LN
Casa Grande, AZ 85122-2949
Phone
(520) 863-9800
Fax
(520) 863-1510
NPI assigned
Feb 9, 2016
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 4, 2025

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

Specialties & licenses 10

Specialty (taxonomy)CodeLicenseStatePrimary
Registered Dietitian 133V00000X ND8632 FL
Registered Dietitian 133V00000X 37003963A IN
Registered Dietitian 133V00000X 2011026060 MO
Registered Dietitian 133V00000X D-1588 ID
Registered Dietitian 133V00000X L006791 NC
Registered Dietitian 133V00000X 2025028888 MO
Registered Dietitian 133V00000X LD.09070 OH
Registered Dietitian 133V00000X 440-LD HI
Registered Dietitian 133V00000X DT89424 TX
Registered Dietitian 133V00000X 3236 LA Primary

Addresses

Primary practice location

1281 E Cottonwood LN
Casa Grande, AZ 85122-2949

Mailing address

PO Box 749495
Atlanta, GA 30374-9495
Phone (855) 963-2100

Other practice location 1

1 Barnes Jewish Hospital Plz
Mailstop 90-17-334
Saint Louis, MO 63110-1003
Phone (314) 362-3833

Other practice location 2

605 Medical Center Drive
Suite B
Alexandria, LA 71301-8143
Phone (225) 767-0822

Other practice location 3

4242 Highway 19
Building 3, Suite B
Zachary, LA 70791
Phone (225) 306-7260

Other practice location 4

500 Ala Moana Blvd
Suite 6-230
Honolulu, HI 96813-4929
Phone (808) 524-6115

Other practice location 5

18354 Interstate 45 S Ste 200
Shenandoah, TX 77384-4993
Phone (936) 235-7092

Other practice location 6

3850 S. National Ave
Suite 600
Springfield, MO 65807-5230
Phone (417) 882-4880

Other names 1

  • Hillary Ann Oneto Former name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in TX, LA, AZ, HI, MO5 enrollments

Enrollment records 5

Enrollment IDStateProvider typePAC IDDetails
I20250428003655 TX Practitioner - Registered Dietitian Or Nutrition Professional 3678099181 Reassigns benefits to 1 organization
I20250428003924 LA Practitioner - Registered Dietitian Or Nutrition Professional 3678099181 Reassigns benefits to 1 organization
I20250502002871 AZ Practitioner - Registered Dietitian Or Nutrition Professional 3678099181 Reassigns benefits to 1 organization
I20250502002957 HI Practitioner - Registered Dietitian Or Nutrition Professional 3678099181 Reassigns benefits to 1 organization
I20250813001217 MO Practitioner - Registered Dietitian Or Nutrition Professional 3678099181 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Registered Dietitian Or Nutrition Professional
Education
Saginaw Valley Medical College - NLG, 2013
Medicare assignment
May accept Medicare assignment

Practice addresses (Care Compare)

PO Box
Atlanta, GA 30374

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
ND8632FLMDRegistered Dietitian
440-LDHIMDRegistered Dietitian
D-1588IDMDRegistered Dietitian
37003963AINMDRegistered Dietitian
2011026060MOMDRegistered Dietitian
L006791NCMDRegistered Dietitian
LD.09070OHMDRegistered Dietitian

Practice roles

OrganizationSpecialtyStatusNew patients
American Oncology Partners of Hawaii, LLC CurrentSince Apr 15, 2025 Accepting new patients
Hawaii Cancer Care Inc Current Accepting new patients
American Oncology Partners, P.a. CurrentSince Jul 22, 2025 Accepting new patients
American Oncology Partners PA CurrentSince Feb 23, 2025 Accepting new patients

Locations

1281 E Cottonwood Ln
Casa Grande, AZ 85122
Phone (520) 836-9800

500 Ala Moana Blvd
Ste 6230
Honolulu, HI 96813
Phone (808) 524-6115

605 Medical Center Dr
Ste B
Alexandria, LA 71301
Phone (225) 767-0822

4242 Highway 19
Ste 3B
Zachary, LA 70791
Phone (225) 654-0774

3850 S National Ave
Ste 600
Springfield, MO 65807
Phone (417) 882-4880

3201 S Austin Ave
Ste 315
Georgetown, TX 78626
Phone (512) 302-1210

18354 Interstate 45 S
Ste 200
Shenandoah, TX 77384
Phone (936) 235-7092

Organizations & group practices 4

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.

NPI Registry JSON

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

{
    "created_epoch": "1454976000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754265600000",
    "number": "1871951582",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 749495",
            "city": "ATLANTA",
            "state": "GA",
            "postal_code": "303749495",
            "telephone_number": "855-963-2100",
            "fax_number": "813-321-1296"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1281 E COTTONWOOD LN",
            "city": "CASA GRANDE",
            "state": "AZ",
            "postal_code": "851222949",
            "telephone_number": "520-863-9800",
            "fax_number": "520-863-1510"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1 Barnes Jewish Hospital Plz",
            "address_2": "Mailstop 90-17-334",
            "address_purpose": "LOCATION",
            "city": "Saint Louis",
            "state": "MO",
            "postal_code": "631101003",
            "country_code": "US",
            "telephone_number": "314-362-3833",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "605 Medical Center Drive",
            "address_2": "Suite B",
            "address_purpose": "LOCATION",
            "city": "Alexandria",
            "state": "LA",
            "postal_code": "713018143",
            "country_code": "US",
            "telephone_number": "225-767-0822",
            "fax_number": "225-769-5424",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "4242 Highway 19",
            "address_2": "Building 3, Suite B",
            "address_purpose": "LOCATION",
            "city": "Zachary",
            "state": "LA",
            "postal_code": "70791",
            "country_code": "US",
            "telephone_number": "225-306-7260",
            "fax_number": "225-654-0717",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "500 Ala Moana Blvd",
            "address_2": "Suite 6-230",
            "address_purpose": "LOCATION",
            "city": "Honolulu",
            "state": "HI",
            "postal_code": "968134929",
            "country_code": "US",
            "telephone_number": "808-524-6115",
            "fax_number": "808-528-1711",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "18354 Interstate 45 S Ste 200",
            "address_purpose": "LOCATION",
            "city": "Shenandoah",
            "state": "TX",
            "postal_code": "773844993",
            "country_code": "US",
            "telephone_number": "936-235-7092",
            "fax_number": "281-805-7320",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "3850 S. National Ave",
            "address_2": "Suite 600",
            "address_purpose": "LOCATION",
            "city": "Springfield",
            "state": "MO",
            "postal_code": "658075230",
            "country_code": "US",
            "telephone_number": "417-882-4880",
            "fax_number": "417-882-7843",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "BUCH",
        "first_name": "HILLARY",
        "middle_name": "ANN ONETO",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2016-02-09",
        "last_updated": "2025-08-04",
        "certification_date": "2025-08-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "133V00000X",
            "taxonomy_group": "",
            "desc": "Dietitian, Registered",
            "state": "FL",
            "license": "ND8632",
            "primary": false
        },
        {
            "code": "133V00000X",
            "taxonomy_group": "",
            "desc": "Dietitian, Registered",
            "state": "IN",
            "license": "37003963A",
            "primary": false
        },
        {
            "code": "133V00000X",
            "taxonomy_group": "",
            "desc": "Dietitian, Registered",
            "state": "MO",
            "license": "2011026060",
            "primary": false
        },
        {
            "code": "133V00000X",
            "taxonomy_group": "",
            "desc": "Dietitian, Registered",
            "state": "ID",
            "license": "D-1588",
            "primary": false
        },
        {
            "code": "133V00000X",
            "taxonomy_group": "",
            "desc": "Dietitian, Registered",
            "state": "NC",
            "license": "L006791",
            "primary": false
        },
        {
            "code": "133V00000X",
            "taxonomy_group": "",
            "desc": "Dietitian, Registered",
            "state": "MO",
            "license": "2025028888",
            "primary": false
        },
        {
            "code": "133V00000X",
            "taxonomy_group": "",
            "desc": "Dietitian, Registered",
            "state": "OH",
            "license": "LD.09070",
            "primary": false
        },
        {
            "code": "133V00000X",
            "taxonomy_group": "",
            "desc": "Dietitian, Registered",
            "state": "HI",
            "license": "440-LD",
            "primary": false
        },
        {
            "code": "133V00000X",
            "taxonomy_group": "",
            "desc": "Dietitian, Registered",
            "state": "TX",
            "license": "DT89424",
            "primary": false
        },
        {
            "code": "133V00000X",
            "taxonomy_group": "",
            "desc": "Dietitian, Registered",
            "state": "LA",
            "license": "3236",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "HILLARY",
            "last_name": "ONETO",
            "middle_name": "ANN",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Casa Grande, AZ

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 4, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.