William S Walker, NP - Medicare Nurse Practitioner in Washington, IN

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William S Walker, NP is a medicare enrolled "Nurse Practitioner - Family" physician in Washington, Indiana. He graduated from medical school in 2004 and has 21 years of diverse experience with area of expertise as Nurse Practitioner. He is a member of the group practice St Marys Medical Group Llc and his current practice location is 1314 E Walnut St, Washington, Indiana. You can reach out to his office (for appointments etc.) via phone at (812) 473-2642.

William S Walker is licensed to practice in Indiana (license number 71001830A) 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 1487640033.

Contact Information

William S Walker, NP
1314 E Walnut St,
Washington, IN 47501-2860
(812) 473-2642
Not Available

Map and Direction




Physician's Profile

Full NameWilliam S Walker
GenderMale
SpecialityNurse Practitioner
Experience21 Years
Location1314 E Walnut St, Washington, Indiana
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:
  • William S Walker graduated from medical school in 2004
  NPI Data:
  • NPI Number: 1487640033
  • Provider Enumeration Date: 09/20/2005
  • Last Update Date: 06/27/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 9638179328
  • Enrollment ID: I20070103000027

Medical Identifiers

Medical identifiers for William S Walker such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1487640033NPI-NPPES
000000372944OtherINANTHEM
200520250AMedicaidIN

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207XX0005XOrthopaedic Surgery - Sports Medicine 71001830A (Indiana)Secondary
363LF0000XNurse Practitioner - Family 71001830A (Indiana)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Daviess Community HospitalWashington, INHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
St Marys Medical Group Llc1153493341219

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 S Walker allows following entities to bill medicare on his behalf.
Entity NameDaviess County Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1619154820
PECOS PAC ID: 1557271665
Enrollment ID: O20040412001435
Entity NameDaviess County Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1083915326
PECOS PAC ID: 1557271665
Enrollment ID: O20040708000846
Entity NameSt Marys Medical Group Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1164852539
PECOS PAC ID: 1153493341
Enrollment ID: O20140313001275

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 S 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 S Walker, NP
1314 E Walnut St,
Washington, IN 47501-2860

Ph: () -		William S Walker, NP
1314 E Walnut St,
Washington, IN 47501-2860

Ph: (812) 473-2642

Reviews and Comments



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.