Catherine L Onsrud, FNP - Medicare Nurse Practitioner in Watertown, WI

Catherine L Onsrud, FNP is a medicare enrolled "Nurse Practitioner - Family" in Watertown, Wisconsin. She graduated from nursing school in 2006 and has 18 years of diverse experience with area of expertise as Nurse Practitioner. She is a member of the group practice Mercy Health System Corporation and her current practice location is 109 Air Park Dr, Prohealth Care Medical Centers Watertown, Watertown, Wisconsin. You can reach out to her office (for appointments etc.) via phone at (262) 928-5100.

Catherine L Onsrud is licensed to practice in Wisconsin (license number 2986-033) 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 1902981673.

Contact Information

Catherine L Onsrud, FNP
109 Air Park Dr, Prohealth Care Medical Centers Watertown,
Watertown, WI 53094-7400
(262) 928-5100
(262) 928-5111

Map and Direction




Provider's Profile

Full NameCatherine L Onsrud
GenderFemale
SpecialityNurse Practitioner
Experience18 Years
Location109 Air Park Dr, Watertown, 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:
  • Catherine L Onsrud graduated from nursing school in 2006
  NPI Data:
  • NPI Number: 1902981673
  • Provider Enumeration Date: 10/25/2006
  • Last Update Date: 10/18/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 5799783429
  • Enrollment ID: I20061113000460

Medical Identifiers

Medical identifiers for Catherine L Onsrud such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1902981673NPI-NPPES
39846100MedicaidWI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363LF0000XNurse Practitioner - Family 2986-033 (Wisconsin)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Mercy Health System CorpJanesville, WIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mercy Health System Corporation7416860440475

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. Catherine L Onsrud allows following entities to bill medicare on her behalf.
Entity NameMercy Health System Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1598718603
PECOS PAC ID: 7416860440
Enrollment ID: O20031113000164

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. Catherine L Onsrud 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
Catherine L Onsrud, FNP
N17w24100 Riverwood Dr, Suite 250,
Waukesha, WI 53188-1177

Ph: (262) 928-4100
Catherine L Onsrud, FNP
109 Air Park Dr, Prohealth Care Medical Centers Watertown,
Watertown, WI 53094-7400

Ph: (262) 928-5100

Reviews and Comments


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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.