Hillary Ann Oneto Buch, - Medicare Dietitian in Casa Grande, AZ

Hillary Ann Oneto Buch, is a medicare enrolled "Dietitian, Registered" provider in Casa Grande, Arizona. Her current practice location is 1281 E Cottonwood Ln, Casa Grande, Arizona. You can reach out to her office (for appointments etc.) via phone at (520) 863-9800.

Hillary Ann Oneto Buch is licensed to practice in Louisiana (license number 3236) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1871951582.

Contact Information

Hillary Ann Oneto Buch,
1281 E Cottonwood Ln,
Casa Grande, AZ 85122-2949
(520) 863-9800
(520) 863-1510

Map and Direction




Healthcare Provider's Profile

Full NameHillary Ann Oneto Buch
GenderFemale
SpecialityDietitian, Registered
Location1281 E Cottonwood Ln, Casa Grande, Arizona
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1871951582
  • Provider Enumeration Date: 02/09/2016
  • Last Update Date: 08/04/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 3678099181
  • Enrollment ID: I20250428003655

Medical Identifiers

Medical identifiers for Hillary Ann Oneto Buch such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1871951582NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
133V00000XDietitian, Registered ND8632 (Florida)Secondary
133V00000XDietitian, Registered 37003963A (Indiana)Secondary
133V00000XDietitian, Registered 2011026060 (Missouri)Secondary
133V00000XDietitian, Registered D-1588 (Idaho)Secondary
133V00000XDietitian, Registered L006791 (North Carolina)Secondary
133V00000XDietitian, Registered 2025028888 (Missouri)Secondary
133V00000XDietitian, Registered LD.09070 (Ohio)Secondary
133V00000XDietitian, Registered 440-LD (Hawaii)Secondary
133V00000XDietitian, Registered DT89424 (Texas)Secondary
133V00000XDietitian, Registered 3236 (Louisiana)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Hillary Ann Oneto Buch allows following entities to bill medicare on her behalf.
Provider NameAmerican Oncology Partners Pa
Provider TypePart B Supplier - Clinic/group Practice
Provider IdentifiersNPI Number: 1265929723
PECOS PAC ID: 0042569758
Enrollment ID: O20230606001135

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Hillary Ann Oneto Buch is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Hillary Ann Oneto Buch,
Po Box 749495,
Atlanta, GA 30374-9495

Ph: (855) 963-2100
Hillary Ann Oneto Buch,
1281 E Cottonwood Ln,
Casa Grande, AZ 85122-2949

Ph: (520) 863-9800

Reviews and Comments


Dietitian, Registered in Casa Grande, AZ

Ashley Vander Weel, RD
Dietitian
Medicare: Not Enrolled in Medicare
Practice Location: 351 N Peart Rd, Apt 325, Casa Grande, AZ 85222
Phone: 248-909-2648    
C Godsgoodness Nutrition And Counseling Llc
Dietitian
Medicare: Not Enrolled in Medicare
Practice Location: 631 W Kingman Loop, Casa Grande, AZ 85122
Phone: 520-709-1231    
Mrs. Sheri Steincamp, MS, RD
Dietitian
Medicare: Not Enrolled in Medicare
Practice Location: 1895 N Trekell Rd Ste 3, Casa Grande, AZ 85122
Phone: 520-840-4026    Fax: 866-438-4206
Catherine Decker, REGISTERED DIETITIAN
Dietitian
Medicare: Not Enrolled in Medicare
Practice Location: 631 W Kingman Loop, Casa Grande, AZ 85122
Phone: 520-709-1231    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.