William Walker, MD - Medicare Emergency Medicine in Hattiesburg, MS

William Walker, MD is a medicare enrolled "Emergency Medicine" physician in Hattiesburg, Mississippi. His current practice location is 6051 Highway 49, Hattiesburg, Mississippi. You can reach out to his office (for appointments etc.) via phone at (601) 288-7000.

William Walker is licensed to practice in Mississippi (license number 08061) 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 1184668246.

Contact Information

William Walker, MD
6051 Highway 49,
Hattiesburg, MS 39401-7200
(601) 288-7000
Not Available

Map and Direction




Physician's Profile

Full NameWilliam Walker
GenderMale
SpecialityEmergency Medicine
Location6051 Highway 49, Hattiesburg, Mississippi
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1184668246
  • Provider Enumeration Date: 06/16/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 3870511165
  • Enrollment ID: I20100722000964

Medical Identifiers

Medical identifiers for William Walker such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1184668246NPI-NPPES
00019522MedicaidMS

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 08061 (Mississippi)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 Walker allows following entities to bill medicare on his behalf.
Entity NameSouth Mississippi Emergency Physicians Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1265478077
PECOS PAC ID: 7113994138
Enrollment ID: O20040910000422
Entity NameHighland Emergency Physicians Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1497268312
PECOS PAC ID: 0547528093
Enrollment ID: O20171211002393

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 Walker 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 Walker, MD
Po Box 15218,
Hattiesburg, MS 39404-5218

Ph: (601) 829-3773
William Walker, MD
6051 Highway 49,
Hattiesburg, MS 39401-7200

Ph: (601) 288-7000

Reviews and Comments

Emergency Medicine Doctors in Hattiesburg, MS

Zachary Ryan Conrad, D.O.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 5001 Hardy St, Hattiesburg, MS 39402
Phone: 601-296-3963    
Robert C Owen, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 6051 Highway 49, Hattiesburg, MS 39401
Phone: 601-288-7000    
Trent Woods, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 6051 Highway 49, Hattiesburg, MS 39401
Phone: 601-288-7000    
Jacob Robert Fenster,
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 5001 Hardy St, Hattiesburg, MS 39402
Phone: 601-296-3963    
Julie Marie Butler, ATC
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 118 College Dr, Hattiesburg, MS 39406
Phone: 601-268-5017    
Melissa B Roberts, MD
Emergency Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 5001 Hardy St, Hattiesburg, MS 39402
Phone: 601-268-8000    

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.