William Walker, MD - Medicare Family Medicine in Sumrall, MS

William Walker, MD is a medicare enrolled "Family Medicine" physician in Sumrall, Mississippi. His current practice location is Merit Health Medical Group-sumrall, 4891 Hwy 589, Sumrall, Mississippi. You can reach out to his office (for appointments etc.) via phone at (601) 758-4606.

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
Merit Health Medical Group-sumrall, 4891 Hwy 589,
Sumrall, MS 39482-3948
(601) 758-4606
(601) 758-4615

Map and Direction




Physician's Profile

Full NameWilliam Walker
GenderMale
SpecialityFamily Medicine
LocationMerit Health Medical Group-sumrall, Sumrall, 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: 01/06/2022
  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
207Q00000XFamily Medicine 08061 (Mississippi)Primary
207P00000XEmergency Medicine 08061 (Mississippi)Secondary

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 NameWesley Physician Services Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1538200209
PECOS PAC ID: 2466559851
Enrollment ID: O20070518000496

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
Merit Health Medical Group-sumrall, 4891 Hwy 589,
Sumrall, MS 39482-5218

Ph: (017) 584-6066
William Walker, MD
Merit Health Medical Group-sumrall, 4891 Hwy 589,
Sumrall, MS 39482-3948

Ph: (601) 758-4606

Reviews and Comments


Family Medicine Doctors in Sumrall, MS

Jamie Goodwin Rawls, MD
Family Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 1238 Highway 42, Sumrall, MS 39482
Phone: 601-758-3100    Fax: 601-758-3060
Ginger N Pace-herndon, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1016 Highway 42, Sumrall, MS 39482
Phone: 601-758-4215    Fax: 601-758-0614
Brandon L Coleman, D. O.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1016 Highway 42, Sumrall, MS 39482
Phone: 601-758-4214    Fax: 601-758-0614
John David Bullock, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1238 Highway 42, Sumrall, MS 39482
Phone: 601-758-3100    Fax: 601-758-3008

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.