Alexander Williams, MD - Medicare Emergency Medicine in Phoenix, AZ

Alexander Williams, MD is a medicare enrolled "Emergency Medicine" physician in Phoenix, Arizona. He went to University Of Oklahoma College Of Medicine and graduated in 2009 and has 15 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Global Physician Network Llc Series I and his current practice location is 2601 E Roosevelt St, Phoenix, Arizona. You can reach out to his office (for appointments etc.) via phone at (602) 344-5808.

Alexander Williams is licensed to practice in Arizona (license number R71493) 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 1942534565.

Contact Information

Alexander Williams, MD
2601 E Roosevelt St,
Phoenix, AZ 85008-4973
(602) 344-5808
Not Available

Map and Direction




Physician's Profile

Full NameAlexander Williams
GenderMale
SpecialityEmergency Medicine
Experience15 Years
Location2601 E Roosevelt 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:
  • Alexander Williams attended and graduated from University Of Oklahoma College Of Medicine in 2009
  NPI Data:
  • NPI Number: 1942534565
  • Provider Enumeration Date: 09/29/2009
  • Last Update Date: 09/29/2009
  Medicare PECOS Information:
  • PECOS PAC ID: 0143485698
  • Enrollment ID: I20120706000383

Medical Identifiers

Medical identifiers for Alexander Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1942534565NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine R71493 (Arizona)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Sarasota Memorial HospitalSarasota, FLHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Global Physician Network Llc Series I721420236541

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. Alexander Williams allows following entities to bill medicare on his behalf.
Entity NameInphynet Contracting Services Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073556767
PECOS PAC ID: 7416865811
Enrollment ID: O20031105000125
Entity NameGlobal Physician Network Llc Series I
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1316467525
PECOS PAC ID: 7214202365
Enrollment ID: O20170929000797
Entity NameGlobal Physician Network Llc Series Ii
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1821518028
PECOS PAC ID: 7012282775
Enrollment ID: O20171005000818

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. Alexander Williams 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
Alexander Williams, MD
7004 S 21st Dr,
Phoenix, AZ 85041-6567

Ph: () -
Alexander Williams, MD
2601 E Roosevelt St,
Phoenix, AZ 85008-4973

Ph: (602) 344-5808

Reviews and Comments


Emergency Medicine Doctors in Phoenix, AZ

Dr. Joel Philip Betz, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2601 E Roosevelt St, Phoenix, AZ 85008
Phone: 602-344-5411    
Beth Marie Ranney, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 645 E Missouri Ave Ste 300, Phoenix, AZ 85012
Phone: 480-500-2540    
Dr. Carrie Lynn Cook, D.O.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1111 E Mcdowell Rd, Phoenix, AZ 85006
Phone: 480-500-2540    Fax: 623-201-7954
Joseph Choi,
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2000 W Bethany Home Rd, Phoenix, AZ 85015
Phone: 602-249-0212    
Diana M Bui, M.D.
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 5777 E Mayo Blvd, Phoenix, AZ 85054
Phone: 480-301-8000    
Dr. Diana Lynelle Dabell, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1300 N 12th St, Ste 301, Phoenix, AZ 85006
Phone: 602-839-6968    
Dr. Jason B Daniels, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 5102 W Campbell Ave, Phoenix, AZ 85031
Phone: 623-848-5000    

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.