Ms Jennifer Castle, ARNP - Medicare Nurse Practitioner in Mason City, IA

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Ms Jennifer Castle, ARNP is a medicare enrolled "Clinical Nurse Specialist" in Mason City, Iowa. She graduated from nursing school in 2016 and has 9 years of diverse experience with area of expertise as Nurse Practitioner. She is a member of the group practice North Iowa Mercy Clinics and her current practice location is 1000 4th St Sw, Mason City, Iowa. You can reach out to her office (for appointments etc.) via phone at (641) 428-6300.

Ms Jennifer Castle is licensed to practice in Iowa (license number W107452) 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 1871031302.

Contact Information

Ms Jennifer Castle, ARNP
1000 4th St Sw,
Mason City, IA 50401-2800
(641) 428-6300
(641) 428-6347

Map and Direction




Provider's Profile

Full NameMs Jennifer Castle
GenderFemale
SpecialityNurse Practitioner
Experience9 Years
Location1000 4th St Sw, Mason City, Iowa
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:
  • Ms Jennifer Castle graduated from nursing school in 2016
  NPI Data:
  • NPI Number: 1871031302
  • Provider Enumeration Date: 02/03/2017
  • Last Update Date: 07/15/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 2961788856
  • Enrollment ID: I20170406003026

Medical Identifiers

Medical identifiers for Ms Jennifer Castle such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1871031302NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
364S00000XClinical Nurse Specialist W107452 (Iowa)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Mercyone North Iowa Medical CenterMason city, IAHospital
Kossuth Regional Health CenterAlgona, IAHospital
Franklin General HospitalHampton, IAHospital
Floyd County Medical CenterCharles city, IAHospital
Iowa Specialty Hospital - BelmondBelmond, IAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
North Iowa Mercy Clinics7810809076273

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. Ms Jennifer Castle allows following entities to bill medicare on her behalf.
Entity NameNorth Iowa Mercy Clinics
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1780278242
PECOS PAC ID: 7810809076
Enrollment ID: O20031105000273

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. Ms Jennifer Castle 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
Ms Jennifer Castle, ARNP
1000 4th St Sw,
Mason City, IA 50401-2800

Ph: () -		Ms Jennifer Castle, ARNP
1000 4th St Sw,
Mason City, IA 50401-2800

Ph: (641) 428-6300

Reviews and Comments


Clinical Nurse Specialist Nurses in Mason City, IA

Mrs. Amy Marie Joslin, DNP, ARNP, AGCNS-BC
Clinical Nurse Specialist
Medicare: Accepting Medicare Assignments
Practice Location: 250 S Crescent Dr, Mason City, IA 50401
Phone: 641-494-5300    
Heidi Smith, ARNP
Clinical Nurse Specialist
Medicare: Accepting Medicare Assignments
Practice Location: 1000 4th St Sw, Mason City, IA 50401
Phone: 641-428-6300    Fax: 641-428-6374

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.