William H Johnston, MD - Medicare Family Practice in Mosinee, WI

William H Johnston, MD is a medicare enrolled "Family Medicine" physician in Mosinee, Wisconsin. He went to University Of California, Davis School Of Medicine and graduated in 2003 and has 21 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Aspirus Medical Group Inc and his current practice location is 1881 Highway Xx, Mosinee, Wisconsin. You can reach out to his office (for appointments etc.) via phone at (715) 355-4040.

William H Johnston is licensed to practice in Wisconsin (license number 48123) 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 1427017789.

Contact Information

William H Johnston, MD
1881 Highway Xx,
Mosinee, WI 54455
(715) 355-4040
Not Available

Map and Direction




Physician's Profile

Full NameWilliam H Johnston
GenderMale
SpecialityFamily Practice
Experience21 Years
Location1881 Highway Xx, Mosinee, Wisconsin
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 H Johnston attended and graduated from University Of California, Davis School Of Medicine in 2003
  NPI Data:
  • NPI Number: 1427017789
  • Provider Enumeration Date: 03/23/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 3577566223
  • Enrollment ID: I20060817000631

Medical Identifiers

Medical identifiers for William H Johnston such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1427017789NPI-NPPES
34869200MedicaidWI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 48123 (Wisconsin)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Aspirus At HomeWausau, WIHome health agency
Aspirus Comfort Care And Hospice ServicesWausau, WIHospice
Aspirus Wausau HospitalWausau, WIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Aspirus Medical Group Inc1052223625204

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 H Johnston allows following entities to bill medicare on his behalf.
Entity NameAspirus Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1669595294
PECOS PAC ID: 1052223625
Enrollment ID: O20031103000267
Entity NameAspirus Wausau Hospital Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1922321140
PECOS PAC ID: 6406757442
Enrollment ID: O20040114000297

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 H Johnston 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 H Johnston, MD
3000 Westhill Dr, Suite 303,
Wausau, WI 54401-3795

Ph: (715) 847-2304
William H Johnston, MD
1881 Highway Xx,
Mosinee, WI 54455

Ph: (715) 355-4040

Reviews and Comments


Family Medicine Doctors in Mosinee, WI

William C Nietert, MD
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 1881 Highway Xx, Mosinee, WI 54455
Phone: 715-355-4040    
Susan M Schneider, MD
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 1881 Highway Xx, Mosinee, WI 54455
Phone: 715-355-4040    
Elizabeth G Barr, MD
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1881 Highway Xx, Mosinee, WI 54455
Phone: 715-355-4040    
Darrell Witt, MD
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1928 Dubay Dr, Mosinee, WI 54455
Phone: 715-457-6521    
Boyd J Groth, MD
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 390 Orbiting Dr, Mosinee, WI 54455
Phone: 715-693-9100    
Gerald W Grim, MD
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 390 Orbiting Dr, Mosinee, WI 54455
Phone: 715-693-9100    

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.