Dr Walter John Nieri, MD - Medicare Internal Medicine in Phoenix, AZ

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Dr Walter John Nieri, MD is a medicare enrolled "Internal Medicine - Geriatric Medicine" physician in Phoenix, Arizona. He graduated from medical school in 1968 and has 58 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Banner Hospital Based Physicians Arizona Llc and his current practice location is 6510 N 27th St, Phoenix, Arizona. You can reach out to his office (for appointments etc.) via phone at (602) 885-1988.

Dr Walter John Nieri is licensed to practice in Arizona (license number 6055) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1265488258.

Contact Information

Dr Walter John Nieri, MD
6510 N 27th St,
Phoenix, AZ 85016-8943
(602) 885-1988
(602) 951-9750

Map and Direction




Physician's Profile

Full NameDr Walter John Nieri
GenderMale
SpecialityInternal Medicine
Experience58 Years
Location6510 N 27th St, Phoenix, Arizona
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Walter John Nieri graduated from medical school in 1968
  NPI Data:
  • NPI Number: 1265488258
  • Provider Enumeration Date: 05/25/2006
  • Last Update Date: 02/24/2009
  Medicare PECOS Information:
  • PECOS PAC ID: 8325139777
  • Enrollment ID: I20070814000568

Medical Identifiers

Medical identifiers for Dr Walter John Nieri such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1265488258NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0300XInternal Medicine - Geriatric Medicine 6055 (Arizona)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Hospice Of The WestPhoenix, AZHospice
Banner Boswell Medical CenterSun city, AZHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Banner Hospital Based Physicians Arizona Llc3274782487636

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. Dr Walter John Nieri allows following entities to bill medicare on his behalf.
Entity NameBanner Alzheimers Institute
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1013966712
PECOS PAC ID: 8527070101
Enrollment ID: O20060623000043
Entity NameBanner Hospital Based Physicians Arizona LLC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1275889891
PECOS PAC ID: 3274782487
Enrollment ID: O20121003000752

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. Dr Walter John Nieri 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
Dr Walter John Nieri, MD
6510 N 27th St,
Phoenix, AZ 85016-8943

Ph: (902) 885-1988		Dr Walter John Nieri, MD
6510 N 27th St,
Phoenix, AZ 85016-8943

Ph: (602) 885-1988

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.