William I Boswell Iv, PA/AA - Medicare Anesthesiology Assistant in Madison, WI

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William I Boswell Iv, PA/AA is a medicare enrolled "Anesthesiologist Assistant" in Madison, Wisconsin. He graduated from nursing school in 1993 and has 33 years of diverse experience with area of expertise as Anesthesiology Assistant. He is a member of the group practice Us Anesthesia Partners Of Colorado Inc, Physician Anesthesia Services Pc, Poudre Valley Medical Group Llc, Ozark Anesthesia Associates Inc and his current practice location is 600 Highland Ave, Madison, Wisconsin. You can reach out to his office (for appointments etc.) via phone at (608) 263-8100.

William I Boswell Iv is licensed to practice in Wisconsin (license number 615-17) 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 1457464679.

Contact Information

William I Boswell Iv, PA/AA
600 Highland Ave,
Madison, WI 53792-0001
(608) 263-8100
Not Available

Map and Direction




Provider's Profile

Full NameWilliam I Boswell Iv
GenderMale
SpecialityAnesthesiology Assistant
Experience33 Years
Location600 Highland Ave, Madison, 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 I Boswell Iv graduated from nursing school in 1993
  NPI Data:
  • NPI Number: 1457464679
  • Provider Enumeration Date: 08/15/2006
  • Last Update Date: 02/03/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 4183538770
  • Enrollment ID: I20170110000319

Medical Identifiers

Medical identifiers for William I Boswell Iv such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1457464679NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
367H00000XAnesthesiologist Assistant ANT.0000069 (Colorado)Secondary
367H00000XAnesthesiologist Assistant 002435 (Georgia)Secondary
367H00000XAnesthesiologist Assistant 615-17 (Wisconsin)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Uch-memorial Health SystemColorado springs, COHospital
Cox Medical CentersSpringfield, MOHospital
Lutheran Medical CenterWheat ridge, COHospital
Sky Ridge Medical CenterLone tree, COHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Us Anesthesia Partners Of Colorado Inc6002072055452
Physician Anesthesia Services Pc7517947146102
Poudre Valley Medical Group Llc96382085491992
Ozark Anesthesia Associates Inc185029014981

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 I Boswell Iv allows following entities to bill medicare on his behalf.
Entity NameUniversity Physicians Incorporated
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1962461889
PECOS PAC ID: 3476465667
Enrollment ID: O20031105000375
Entity NamePhysician Anesthesia Services Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1861476590
PECOS PAC ID: 7517947146
Enrollment ID: O20040723000048
Entity NamePoudre Valley Medical Group Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1225356868
PECOS PAC ID: 9638208549
Enrollment ID: O20100602000122
Entity NameUs Anesthesia Partners Of Colorado Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1922365782
PECOS PAC ID: 6002072055
Enrollment ID: O20120725000032

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 I Boswell Iv 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 I Boswell Iv, PA/AA
7974 Uw Health Ct,
Middleton, WI 53562-5531

Ph: () -		William I Boswell Iv, PA/AA
600 Highland Ave,
Madison, WI 53792-0001

Ph: (608) 263-8100

Reviews and Comments


Anesthesiologist Assistant Nurses in Madison, WI

Margaret O Schessler, AA-C
Anesthesiologist Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 600 Highland Ave, Madison, WI 53792
Phone: 608-263-8100    Fax: 608-263-8111
Mrs. Laura Brichler Wyatt, AA-C
Anesthesiologist Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 600 Highland Ave, Madison, WI 53792
Phone: 608-263-8100    Fax: 608-226-3811
Lucas Martin, CAA
Anesthesiologist Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 600 Highland Ave, Madison, WI 53792
Phone: 608-263-6400    
Nikki L Brechtel, AA-C
Anesthesiologist Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 600 Highland Ave, Madison, WI 53792
Phone: 608-263-8100    Fax: 608-263-0575
Andrew J Liu,
Anesthesiologist Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 202 S Park St, Madison, WI 53715
Phone: 608-417-6676    
Becky Qianyi Chu, CAA
Anesthesiologist Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 600 Highland Ave, Madison, WI 53792
Phone: 608-263-8100    
Kelly Erin Mcclanahan, CAA
Anesthesiologist Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 600 Highland Ave, Madison, WI 53792
Phone: 608-263-8100    Fax: 608-262-6247

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.