William Chase Madsen, - Medicare Emergency Medicine in Las Vegas, NV

William Chase Madsen, is a medicare enrolled "Emergency Medicine" physician in Las Vegas, Nevada. His current practice location is 901 Rancho Ln Ste 135, Las Vegas, Nevada. You can reach out to his office (for appointments etc.) via phone at (702) 383-7885.

William Chase Madsen is licensed to practice in Nevada (license number DO3341) 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 1013545433.

Contact Information

William Chase Madsen,
901 Rancho Ln Ste 135,
Las Vegas, NV 89106-3826
(702) 383-7885
(702) 383-8235

Map and Direction




Physician's Profile

Full NameWilliam Chase Madsen
GenderMale
SpecialityEmergency Medicine
Location901 Rancho Ln Ste 135, Las Vegas, Nevada
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1013545433
  • Provider Enumeration Date: 03/31/2020
  • Last Update Date: 08/28/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 1759743958
  • Enrollment ID: I20230821002190

Medical Identifiers

Medical identifiers for William Chase Madsen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1013545433NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine DO3341 (Nevada)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 Chase Madsen allows following entities to bill medicare on his behalf.
Entity NameSound Physicians Emergency Medicine Of Nevada Bessler Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1881151231
PECOS PAC ID: 1254666993
Enrollment ID: O20190717001801

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 Chase Madsen 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 Chase Madsen,
901 Rancho Ln Ste 135,
Las Vegas, NV 89106-3826

Ph: (702) 383-7885
William Chase Madsen,
901 Rancho Ln Ste 135,
Las Vegas, NV 89106-3826

Ph: (702) 383-7885

Reviews and Comments


Emergency Medicine Doctors in Las Vegas, NV

Dr. Andrew E Sheep, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 542 Las Ocas Ct, Las Vegas, NV 89138
Phone: 267-209-3255    
Dr. Kay E Mcmillan, DO
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 620 Shadow Ln, Las Vegas, NV 89106
Phone: 702-388-4500    
Timothy Vanduzer, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 500 N Rainbow Blvd, Suite 203, Las Vegas, NV 89107
Phone: 702-259-1228    Fax: 702-259-1272
Dr. Henry R Landsman, MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 10055 Canyon Hills Ave, Las Vegas, NV 89148
Phone: 702-497-0424    
Angel Li, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 6655 S Cimarron Rd Ste 100, Las Vegas, NV 89113
Phone: 702-233-7481    
Dr. Roya Laura Mahana, D.O.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3186 S Maryland Pkwy, Las Vegas, NV 89109
Phone: 702-961-5000    

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.