Mariana Rodriguez Fierro, RDN, CDCES - Medicare Dietitian in Phoenix, AZ

Mariana Rodriguez Fierro, RDN, CDCES is a medicare enrolled "Dietitian, Registered" provider in Phoenix, Arizona. She graduated from medical school in 2019 and has 7 years of diverse experience with area of expertise as Registered Dietitian Or Nutrition Professional. She is a member of the group practice Neighborhood Outreach Access To Health and her current practice location is 9015 N 3rd St, Phoenix, Arizona. You can reach out to her office (for appointments etc.) via phone at (480) 882-4545.

Mariana Rodriguez Fierro is licensed to practice in Arizona (license number 86154635) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1861361776.

Contact Information

Mariana Rodriguez Fierro, RDN, CDCES
9015 N 3rd St,
Phoenix, AZ 85020-2444
(480) 882-4545
(602) 714-3755

Map and Direction




Healthcare Provider's Profile

Full NameMariana Rodriguez Fierro
GenderFemale
SpecialityRegistered Dietitian Or Nutrition Professional
Experience7 Years
Location9015 N 3rd St, Phoenix, Arizona
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Mariana Rodriguez Fierro graduated from medical school in 2019
  NPI Data:
  • NPI Number: 1861361776
  • Provider Enumeration Date: 10/30/2025
  • Last Update Date: 03/16/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 6901385079
  • Enrollment ID: I20260209003189

Medical Identifiers

Medical identifiers for Mariana Rodriguez Fierro such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1861361776NPI-NPPES
250916MedicaidAZ

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
133V00000XDietitian, Registered 86154635 (Arizona)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Neighborhood Outreach Access To Health3577743764107

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. Mariana Rodriguez Fierro allows following entities to bill medicare on her behalf.
Provider NameNeighborhood Outreach Access to Health
Provider TypePart B Supplier - Clinic/group Practice
Provider IdentifiersNPI Number: 1942518550
PECOS PAC ID: 3577743764
Enrollment ID: O20110204000504

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. Mariana Rodriguez Fierro 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
Mariana Rodriguez Fierro, RDN, CDCES
7500 N Dreamy Draw Dr Ste 145,
Phoenix, AZ 85020-4668

Ph: (480) 882-4545
Mariana Rodriguez Fierro, RDN, CDCES
9015 N 3rd St,
Phoenix, AZ 85020-2444

Ph: (480) 882-4545

Reviews and Comments


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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.