Robert Orenstein, DO - Medicare Infectious Disease in Phoenix, AZ

Robert Orenstein, DO is a medicare enrolled "Internal Medicine - Infectious Disease" physician in Phoenix, Arizona. He graduated from medical school in 1987 and has 37 years of diverse experience with area of expertise as Infectious Disease. He is a member of the group practice Mayo Clinic - Arizona and his current practice location is 5777 E Mayo Blvd, Phoenix, Arizona. You can reach out to his office (for appointments etc.) via phone at (480) 301-8000.

Robert Orenstein is licensed to practice in Arizona (license number 5472) 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 1174500565.

Contact Information

Robert Orenstein, DO
5777 E Mayo Blvd,
Phoenix, AZ 85054
(480) 301-8000
Not Available

Map and Direction




Physician's Profile

Full NameRobert Orenstein
GenderMale
SpecialityInfectious Disease
Experience37 Years
Location5777 E Mayo Blvd, 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:
  • Robert Orenstein graduated from medical school in 1987
  NPI Data:
  • NPI Number: 1174500565
  • Provider Enumeration Date: 12/27/2005
  • Last Update Date: 09/09/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 3971680190
  • Enrollment ID: I20101012001051

Medical Identifiers

Medical identifiers for Robert Orenstein such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1174500565NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 44468 (Minnesota)Secondary
207RI0200XInternal Medicine - Infectious Disease 44468 (Minnesota)Secondary
207RI0200XInternal Medicine - Infectious Disease 5472 (Arizona)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Mayo Clinic HospitalPhoenix, AZHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mayo Clinic - Arizona70128299301400

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. Robert Orenstein allows following entities to bill medicare on his behalf.
Entity NameMayo Clinic Arizona
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1558332494
PECOS PAC ID: 7012829930
Enrollment ID: O20031105000782

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. Robert Orenstein 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
Robert Orenstein, DO
5777 E Mayo Blvd,
Phoenix, AZ 85054-4502

Ph: (480) 301-8000
Robert Orenstein, DO
5777 E Mayo Blvd,
Phoenix, AZ 85054

Ph: (480) 301-8000

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.