William Nicholson, MD - Medicare Family Medicine in West Allis, WI

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William Nicholson, MD is a medicare enrolled "Family Medicine" physician in West Allis, Wisconsin. His current practice location is 2514 S 102nd St Ste 160, West Allis, Wisconsin. You can reach out to his office (for appointments etc.) via phone at (414) 255-0300.

William Nicholson is licensed to practice in Wisconsin (license number 37383) 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 1003830142.

Contact Information

William Nicholson, MD
2514 S 102nd St Ste 160,
West Allis, WI 53227-2142
(414) 255-0300
(414) 543-9601

Map and Direction




Physician's Profile

Full NameWilliam Nicholson
GenderMale
SpecialityFamily Medicine
Location2514 S 102nd St Ste 160, West Allis, Wisconsin
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1003830142
  • Provider Enumeration Date: 07/26/2006
  • Last Update Date: 07/21/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 9537262092
  • Enrollment ID: I20070321000531

Medical Identifiers

Medical identifiers for William Nicholson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1003830142NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 37383 (Wisconsin)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 Nicholson allows following entities to bill medicare on his behalf.
Entity NameVpa Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1659484657
PECOS PAC ID: 9234041948
Enrollment ID: O20040322000734
Entity NameIah Of Wisconsin Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1861898090
PECOS PAC ID: 1658696729
Enrollment ID: O20150212000235

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 Nicholson 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 Nicholson, MD
3807 Spring St,
Racine, WI 53405-1667

Ph: (262) 687-8173		William Nicholson, MD
2514 S 102nd St Ste 160,
West Allis, WI 53227-2142

Ph: (414) 255-0300

Reviews and Comments


Family Medicine Doctors in West Allis, WI

Michael D Hazelberg, DO
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 2514 S 102nd St Ste 160, West Allis, WI 53227
Phone: 414-255-0300    Fax: 414-543-9601
Gregory Rachu, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 7220 W National Ave, West Allis, WI 53214
Phone: 414-257-8500    
Dr. Paul Gordon Malen, DO
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 2323 S 109th St, #220, West Allis, WI 53227
Phone: 414-541-5222    Fax: 414-541-4959
Peggy A Callahan, MD
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 8901 W Lincoln Ave, Hyperbaric Medicine And Wound Care, West Allis, WI 53227
Phone: 414-203-3760    
Hillary A Tamar, MD
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 2814 S 108th St, West Allis, WI 53227
Phone: 414-885-3525    
Francis X Ruzicka, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 801 S 70th St, West Allis, WI 53214
Phone: 414-773-6600    Fax: 414-773-6672

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.