Maria A Keenan, CRNA - Medicare Certified Registered Nurse Anesthetist (crna) in Marshfield, WI

Maria A Keenan, CRNA is a medicare enrolled "Nurse Anesthetist, Certified Registered" in Marshfield, Wisconsin. She graduated from nursing school in 1993 and has 31 years of diverse experience with area of expertise as Certified Registered Nurse Anesthetist (crna). She is a member of the group practice Mchs Hospitals Inc and her current practice location is 1000 N Oak Ave, Marshfield, Wisconsin. You can reach out to her office (for appointments etc.) via phone at (715) 387-7179.

Maria A Keenan is licensed to practice in Wisconsin (license number 113547) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1235222613.

Contact Information

Maria A Keenan, CRNA
1000 N Oak Ave,
Marshfield, WI 54449
(715) 387-7179
Not Available

Map and Direction




Provider's Profile

Full NameMaria A Keenan
GenderFemale
SpecialityCertified Registered Nurse Anesthetist (crna)
Experience31 Years
Location1000 N Oak Ave, Marshfield, Wisconsin
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Maria A Keenan graduated from nursing school in 1993
  NPI Data:
  • NPI Number: 1235222613
  • Provider Enumeration Date: 09/30/2006
  • Last Update Date: 04/27/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 1850468687
  • Enrollment ID: I20080922000035

Medical Identifiers

Medical identifiers for Maria A Keenan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1235222613NPI-NPPES
43333300MedicaidWI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
367500000XNurse Anesthetist, Certified Registered 113547 (Wisconsin)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Marshfield Medical CenterMarshfield, WIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mchs Hospitals Inc56980711731030

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. Maria A Keenan allows following entities to bill medicare on her behalf.
Entity NameMarshfield Clinic Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1952347981
PECOS PAC ID: 2264345206
Enrollment ID: O20031106000590
Entity NameMchs Hospitals Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1093221434
PECOS PAC ID: 5698071173
Enrollment ID: O20180208000096

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. Maria A Keenan 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
Maria A Keenan, CRNA
1000 N Oak Ave,
Marshfield, WI 54449-5777

Ph: () -
Maria A Keenan, CRNA
1000 N Oak Ave,
Marshfield, WI 54449

Ph: (715) 387-7179

Reviews and Comments


Nurse Anesthetist, Certified Registered Nurses in Marshfield, WI

James Skibba, CRNA
Nurse Anesthetist - CR
Medicare: Not Enrolled in Medicare
Practice Location: 1000 N Oak Ave, Marshfield, WI 54449
Phone: 715-387-7179    
Alan R Janssen, CRNA
Nurse Anesthetist - CR
Medicare: Not Enrolled in Medicare
Practice Location: 1000 N Oak Ave, Marshfield, WI 54449
Phone: 715-387-5511    
Justin L. Willuweit, CRNA
Nurse Anesthetist - CR
Medicare: Accepting Medicare Assignments
Practice Location: 1000 N Oak Ave, Marshfield, WI 54449
Phone: 715-387-5511    
Kimberly L Anderson, CRNA
Nurse Anesthetist - CR
Medicare: Accepting Medicare Assignments
Practice Location: 1000 N Oak Ave, Marshfield, WI 54449
Phone: 715-387-5511    
Jodi Mechelke, CRNA
Nurse Anesthetist - CR
Medicare: Medicare Enrolled
Practice Location: 1000 N Oak Ave, Marshfield, WI 54449
Phone: 715-387-7275    
Robin J. Kalk, CRNA
Nurse Anesthetist - CR
Medicare: Medicare Enrolled
Practice Location: 1000 N Oak Ave, Marshfield, WI 54449
Phone: 715-387-5511    
James Brand, CRNA
Nurse Anesthetist - CR
Medicare: Medicare Enrolled
Practice Location: 1000 N Oak Ave, Marshfield, WI 54449
Phone: 715-387-5511    

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.