Dr Warren Maynard Butler, MD - Medicare Internal Medicine in Scottsdale, AZ

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Dr Warren Maynard Butler, MD is a medicare enrolled "Internal Medicine" physician in Scottsdale, Arizona. He graduated from medical school in 2001 and has 24 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Aia Hospitalists Llc and his current practice location is 9590 E Ironwood Square Dr, Ste 125, Scottsdale, Arizona. You can reach out to his office (for appointments etc.) via phone at (480) 455-3000.

Dr Warren Maynard Butler is licensed to practice in Arizona (license number 41991) 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 1750339784.

Contact Information

Dr Warren Maynard Butler, MD
9590 E Ironwood Square Dr, Ste 125,
Scottsdale, AZ 85258-4581
(480) 455-3000
(866) 819-6119

Map and Direction




Physician's Profile

Full NameDr Warren Maynard Butler
GenderMale
SpecialityInternal Medicine
Experience24 Years
Location9590 E Ironwood Square Dr, Scottsdale, 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 Warren Maynard Butler graduated from medical school in 2001
  NPI Data:
  • NPI Number: 1750339784
  • Provider Enumeration Date: 05/04/2006
  • Last Update Date: 05/30/2016
  Medicare PECOS Information:
  • PECOS PAC ID: 5991892671
  • Enrollment ID: I20091208000471

Medical Identifiers

Medical identifiers for Dr Warren Maynard Butler such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1750339784NPI-NPPES
475710MedicaidAZ

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 25MA0764700 (New Jersey)Secondary
208M00000XHospitalist 41991 (Arizona)Secondary
207R00000XInternal Medicine 41991 (Arizona)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Chandler Regional Medical CenterChandler, AZHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Aia Hospitalists Llc337558363655

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 Warren Maynard Butler allows following entities to bill medicare on his behalf.
Entity NameAmerican Physicians Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1609869908
PECOS PAC ID: 3577467463
Enrollment ID: O20031121000688
Entity NameAia Hospitalists Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1831166230
PECOS PAC ID: 3375583636
Enrollment ID: O20050505000617
Entity NameCogent Healthcare Of Arizona Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1568758266
PECOS PAC ID: 0648441006
Enrollment ID: O20110915000843
Entity Name4c Medical Group Plc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1558654384
PECOS PAC ID: 2769653641
Enrollment ID: O20110926000641
Entity NameHospitalist Medicine Physicians Of Arizona - Phoenix, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1649759754
PECOS PAC ID: 8123370087
Enrollment ID: O20181004001670
Entity NameHospitalist Medicine Physicians Of Arizona - Tcs
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1538758909
PECOS PAC ID: 3274940028
Enrollment ID: O20210324000655

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 Warren Maynard Butler 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 Warren Maynard Butler, MD
9590 E Ironwood Square Dr, Ste 125,
Scottsdale, AZ 85258-4581

Ph: (480) 455-3000		Dr Warren Maynard Butler, MD
9590 E Ironwood Square Dr, Ste 125,
Scottsdale, AZ 85258-4581

Ph: (480) 455-3000

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.