Mackenzie Guigar, PA-C - Medicare Physician Assistant in Grand Rapids, MI

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Mackenzie Guigar, PA-C is a medicare enrolled "Physician Assistant" in Grand Rapids, Michigan. She graduated from nursing school in 2022 and has 4 years of diverse experience with area of expertise as Physician Assistant. She is a member of the group practice Mercy Specialty Services, Spectrum Health Primary Care Partners and her current practice location is 426 Michigan St Ne, Grand Rapids, Michigan. You can reach out to her office (for appointments etc.) via phone at (616) 267-8338.

Mackenzie Guigar is licensed to practice in Michigan (license number 5601011585) 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 1528773033.

Contact Information

Mackenzie Guigar, PA-C
426 Michigan St Ne,
Grand Rapids, MI 49503-5609
(616) 267-8338
Not Available

Map and Direction




Provider's Profile

Full NameMackenzie Guigar
GenderFemale
SpecialityPhysician Assistant
Experience4 Years
Location426 Michigan St Ne, Grand Rapids, Michigan
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:
  • Mackenzie Guigar graduated from nursing school in 2022
  NPI Data:
  • NPI Number: 1528773033
  • Provider Enumeration Date: 01/18/2023
  • Last Update Date: 11/10/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 6507238292
  • Enrollment ID: I20230206002179

Medical Identifiers

Medical identifiers for Mackenzie Guigar such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1528773033NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363A00000XPhysician Assistant 5601011585 (Michigan)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Corewell Health Grand Rapids Hospitals ButterworthGrand rapids, MIHospital
Trinity Health Muskegon HospitalMuskegon, MIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mercy Specialty Services236543954487
Spectrum Health Primary Care Partners45875686472283

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. Mackenzie Guigar allows following entities to bill medicare on her behalf.
Entity NameSpectrum Health Primary Care Partners
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1235188673
PECOS PAC ID: 4587568647
Enrollment ID: O20031121000091
Entity NameMercy Physician Network
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023056744
PECOS PAC ID: 8921996307
Enrollment ID: O20040308000687
Entity NameMercy Specialty Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1629010384
PECOS PAC ID: 2365439544
Enrollment ID: O20040429000064
Entity NameMercy Health Partners Sub-specialty Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1124042700
PECOS PAC ID: 3274504105
Enrollment ID: O20040804000803
Entity NameMercy Health Partners - Physician Specialist
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1922248772
PECOS PAC ID: 2163572991
Enrollment ID: O20090616000615
Entity NameMercy Health Westshore Cardiology Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1336573393
PECOS PAC ID: 5991932360
Enrollment ID: O20131210000146

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. Mackenzie Guigar 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
Mackenzie Guigar, PA-C
100 Michigan St Ne, Mc 845,
Grand Rapids, MI 49503-2560

Ph: Not Available		Mackenzie Guigar, PA-C
426 Michigan St Ne,
Grand Rapids, MI 49503-5609

Ph: (616) 267-8338

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.