Individual provider Active NPI

Kathleen Ritzert, CNP

  • Nurse Practitioner
  • Ann Arbor, MI
National Provider Identifier
1225583362
Registry record updated Mar 20, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nurse PractitionerTaxonomy code 363L00000X
License
4704251887 Issued in MI
Practice address
2215 Fuller Rd
Ann Arbor, MI 48105-2303
Phone
(734) 769-1624
NPI assigned
Aug 18, 2016
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 20, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Nurse Practitioner 363L00000X 4704251887 MI Primary

Addresses

Primary practice location

2215 Fuller Rd
Ann Arbor, MI 48105-2303

Mailing address

2215 Fuller Rd
Ann Arbor, MI 48105-2303
Phone (734) 769-7100

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MI
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20161010001486 MI Practitioner - Nurse Practitioner 8921396854 Reassigns benefits to 1 organization

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Certified Nurse Practitioner, Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Iha Health Services Corporation Current Accepting new patients
Iha Health Services Organization CurrentSince Sep 1, 2016 Accepting new patients
Iha Health Service Corporation CurrentSince Sep 1, 2016 Accepting new patients

Locations

24 Frank Lloyd Wright Dr
Ann Arbor, MI 48105
Phone (734) 930-7400

2305 Genoa Business Park Dr
Ste 200
Brighton, MI 48114
Phone (810) 494-6840

49650 Cherry Hill Rd
Ste 120
Canton, MI 48187
Phone (734) 398-7800

128 Van Buren St
Chelsea, MI 48118
Phone (734) 475-8677

44428 Woodward Ave
Ste 102
Pontiac, MI 48341
Phone (734) 712-8700

5325 Elliott Dr
Ypsilanti, MI 48197

Organizations & group practices 3

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1471478400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1773964800000",
    "number": "1225583362",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2215 FULLER RD",
            "city": "ANN ARBOR",
            "state": "MI",
            "postal_code": "481052303",
            "telephone_number": "734-769-7100"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2215 FULLER RD",
            "city": "ANN ARBOR",
            "state": "MI",
            "postal_code": "481052303",
            "telephone_number": "734-769-1624"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "RITZERT",
        "first_name": "KATHLEEN",
        "credential": "CNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2016-08-18",
        "last_updated": "2026-03-20",
        "certification_date": "2026-03-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "MI",
            "license": "4704251887",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Ann Arbor, MI

Sources for this page

Verify at the official NPI Registry.