William F Quirk Jr, MD - Medicare Emergency Medicine in Littleton, CO

William F Quirk Jr, MD is a medicare enrolled "Emergency Medicine" physician in Littleton, Colorado. He graduated from medical school in 1993 and has 31 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Usacs Of Colorado Inc and his current practice location is 7700 S Broadway, Littleton, Colorado. You can reach out to his office (for appointments etc.) via phone at (303) 730-5800.

William F Quirk Jr is licensed to practice in Colorado (license number 39224) 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 1184699597.

Contact Information

William F Quirk Jr, MD
7700 S Broadway,
Littleton, CO 80122-2602
(303) 730-5800
(303) 730-5868

Map and Direction




Physician's Profile

Full NameWilliam F Quirk Jr
GenderMale
SpecialityEmergency Medicine
Experience31 Years
Location7700 S Broadway, Littleton, Colorado
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 F Quirk Jr graduated from medical school in 1993
  NPI Data:
  • NPI Number: 1184699597
  • Provider Enumeration Date: 02/20/2006
  • Last Update Date: 04/22/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 1355422809
  • Enrollment ID: I20100607000594

Medical Identifiers

Medical identifiers for William F Quirk Jr such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1184699597NPI-NPPES
930103389OtherCORR MEDICARE
51308568MedicaidCO

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 39224 (Colorado)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Prowers Medical CenterLamar, COHospital
Littleton Adventist Hospital, Centura HealthLittleton, COHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Usacs Of Colorado Inc498150757146

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 F Quirk Jr allows following entities to bill medicare on his behalf.
Entity NameUsacs Of Colorado Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760415871
PECOS PAC ID: 4981507571
Enrollment ID: O20040130000439
Entity NameUsacs Community Emergency Services Of Colorado Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1053824979
PECOS PAC ID: 2466711536
Enrollment ID: O20180117002329

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 F Quirk Jr 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 F Quirk Jr, MD
2320 E 93rd St,
Chicago, IL 60617-3909

Ph: (303) 759-0854
William F Quirk Jr, MD
7700 S Broadway,
Littleton, CO 80122-2602

Ph: (303) 730-5800

Reviews and Comments


Emergency Medicine Doctors in Littleton, CO

Richard Kubista, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 7700 S Broadway, Littleton Adventist Hospital, Emergency Department, Littleton, CO 80122
Phone: 303-778-5666    Fax: 303-759-0864
Ahmed R Stowers, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 7700 S Broadway, Littleton, CO 80122
Phone: 303-730-5800    Fax: 303-730-5868
Nicholas Sweda, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 7700 S Broadway, Littleton, CO 80122
Phone: 303-730-8900    
Dr. Patricia Michelle Troxell Klingenbjerg, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 7700 S Broadway, Littleton, CO 80122
Phone: 303-730-8900    
Susan Elizabeth Sipay, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 26 W Dry Creek Cir Ste 520, Littleton, CO 80120
Phone: 720-791-2911    
Michael Schuett, MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 7700 S Broadway, Littleton Hospital, Littleton, CO 80122
Phone: 303-730-5800    Fax: 303-730-5868

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.