William Anthony Harrison, MD - Medicare Internal Medicine in Cheyenne, WY

William Anthony Harrison, MD is a medicare enrolled "Internal Medicine" physician in Cheyenne, Wyoming. He went to Creighton University School Of Medicine and graduated in 1991 and has 33 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Cheyenne Regional Physicians Group Llc and his current practice location is 800 E 20th St, Suite 350, Cheyenne, Wyoming. You can reach out to his office (for appointments etc.) via phone at (307) 996-1560.

William Anthony Harrison is licensed to practice in Wyoming (license number 5769A) 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 1295718013.

Contact Information

William Anthony Harrison, MD
800 E 20th St, Suite 350,
Cheyenne, WY 82001-3859
(307) 996-1560
(307) 996-1565

Map and Direction




Physician's Profile

Full NameWilliam Anthony Harrison
GenderMale
SpecialityInternal Medicine
Experience33 Years
Location800 E 20th St, Cheyenne, Wyoming
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 Anthony Harrison attended and graduated from Creighton University School Of Medicine in 1991
  NPI Data:
  • NPI Number: 1295718013
  • Provider Enumeration Date: 11/25/2005
  • Last Update Date: 11/08/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 2961584867
  • Enrollment ID: I20080131000162

Medical Identifiers

Medical identifiers for William Anthony Harrison such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1295718013NPI-NPPES
5769AOtherWYSTATE LICENSE
110746100MedicaidWY
710WH95OtherWYSUBSTANCE CONTROL

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 5769A (Wyoming)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Cheyenne Regional Medical Center Home Care ServiceCheyenne, WYHome health agency
Encompass Home Health Of WyomingLaramie, WYHome health agency
Continue Care Home Health Agency IncCheyenne, WYHome health agency
Cheyenne Regional Medical CenterCheyenne, WYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Cheyenne Regional Physicians Group Llc296140363991

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 Anthony Harrison allows following entities to bill medicare on his behalf.
Entity NameMemorial Hospital Of Laramie County
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285621839
PECOS PAC ID: 1557357555
Enrollment ID: O20040423001172
Entity NameCheyenne Regional Physicians Group Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1659458008
PECOS PAC ID: 2961403639
Enrollment ID: O20070123000486

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 Anthony Harrison 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 Anthony Harrison, MD
Po Box 20970,
Cheyenne, WY 82003-7020

Ph: (307) 996-1560
William Anthony Harrison, MD
800 E 20th St, Suite 350,
Cheyenne, WY 82001-3859

Ph: (307) 996-1560

Reviews and Comments


Internal Medicine Doctors in Cheyenne, WY

Robert J. Sachs, MD
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Dr. Jamie Skrove, D.O.
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Dale C Brentlinger, M.D.
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Sandra Abreu Guidry, MD
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Sebastine I Elendu, MD
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Dr. David Franklin Oakes, MD
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Practice Location: 2301 House Ave Ste 301, Cheyenne, WY 82001
Phone: 307-637-1600    
Hoo Feng Choo, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2301 House Ave, Suite 201, Cheyenne, WY 82001
Phone: 307-638-7757    Fax: 307-637-8300

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.