William Ray Mostow, MD - Medicare Emergency Medicine in Sun City, AZ

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William Ray Mostow, MD is a medicare enrolled "Emergency Medicine" physician in Sun City, Arizona. His current practice location is 14502 West Meeker Boulevard, Sun City, Arizona. You can reach out to his office (for appointments etc.) via phone at (623) 214-4000.

William Ray Mostow is licensed to practice in Arizona (license number 26337) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1922057348.

Contact Information

William Ray Mostow, MD
14502 West Meeker Boulevard,
Sun City, AZ 85375
(623) 214-4000
Not Available

Map and Direction




Physician's Profile

Full NameWilliam Ray Mostow
GenderMale
SpecialityEmergency Medicine
Location14502 West Meeker Boulevard, Sun City, Arizona
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1922057348
  • Provider Enumeration Date: 05/10/2006
  • Last Update Date: 01/14/2009
  Medicare PECOS Information:
  • PECOS PAC ID: 9436050549
  • Enrollment ID: I20060802000529

Medical Identifiers

Medical identifiers for William Ray Mostow such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1922057348NPI-NPPES
428236MedicaidAZ

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 26337 (Arizona)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. William Ray Mostow allows following entities to bill medicare on his behalf.
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
Entity NameCep America- Arizona, Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1780202804
PECOS PAC ID: 1850541970
Enrollment ID: O20121026000403

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. William Ray Mostow 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
William Ray Mostow, MD
2100 Powell Street Ste 920,
Emeryville, CA 94608-1803

Ph: (510) 350-2777		William Ray Mostow, MD
14502 West Meeker Boulevard,
Sun City, AZ 85375

Ph: (623) 214-4000

Reviews and Comments


Emergency Medicine Doctors in Sun City, AZ

Raymond Hemmert, D.O
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 10401 W Thunderbird Blvd, Sun City, AZ 85351
Phone: 623-977-7211    
Aaron C Mckinney, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 14502 West Meeker Boulevard, Sun City, AZ 85375
Phone: 623-214-4000    
Heidi Susan Holland, D.O
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 10401 W Thunderbird Blvd, Sun City, AZ 85351
Phone: 623-977-7211    
Parth Harish Patel, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 10401 W Thunderbird Blvd, Sun City, AZ 85351
Phone: 623-832-4000    
Peter Vaughn Hull, M.D
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 10401 W Thunderbird Blvd, Sun City, AZ 85351
Phone: 623-977-7211    
Scott David Lopata, M.D
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 10401 West Thunderbird Blvd., Sun City, AZ 85351
Phone: 623-977-7211    
Ann Marie Sun, MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 23129 N 122nd Ave, Sun City, AZ 85373
Phone: 623-687-1662    

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.