Individual provider Active NPI

Katheryn Knudson, MD

  • Obstetrics & Gynecology Physician
  • Grand Rapids, MI
National Provider Identifier
1063452118
Registry record updated Apr 8, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X
License
4301054863 Issued in MI
Practice address
80 68TH St SE Ste 301
Grand Rapids, MI 49548-6980
Phone
(616) 391-3302
NPI assigned
Jun 7, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 8, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Obstetrics & Gynecology Physician 207V00000X 4301054863 MI Primary

Addresses

Primary practice location

80 68TH St SE Ste 301
Grand Rapids, MI 49548-6980

Mailing address

100 Michigan St NE # Mc845
Grand Rapids, MI 49503-2560

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file
Eligible to order & refer
  • Part B services: No
  • Medical equipment: Yes
  • Home health: No
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Care Compare profile

Medicare Care Compare
Specialty
Obstetrics/Gynecology
Education
University of Minnesota Medical School, 1989
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services

Practice addresses (Care Compare)

100 Michigan St NE
Grand Rapids, MI 49503-2560

100 Michigan St NE MC
Suite 845
Grand Rapids, MI 49503-2560

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Spectrum Health Primary Care Partners CurrentSince Jan 1, 2011 Accepting new patients
Spectrum Health Primary Care Partners CurrentSince Jan 1, 2011 Accepting new patients
Spectrum Health Primary Care Partners Obstetrics & Gynecology Current Accepting new patients
Spectrum Health Hospitals Past Accepting new patients

Locations

7128 Fulton St E
Ada, MI 49301
Phone (616) 825-3500

221 Michigan St NE
Grand Rapids, MI 49503
Phone (616) 391-1405

80 68th St SE
Ste 301
Grand Rapids, MI 49548
Phone (616) 391-3302

4085 Burton St SE
Ste 200
Grand Rapids, MI 49546

2750 E Beltline Ave NE
Fl 1
Grand Rapids, MI 49525
Phone (616) 391-6271

2249 Wealthy St SE
Ste 110
Grand Rapids, MI 49506
Phone (616) 391-4600

3800 Lake Michigan Dr NW
Ste A
Grand Rapids, MI 49534
Phone (616) 267-8225

4829 E Beltline Ave NE
Grand Rapids, MI 49525
Phone (616) 363-9069

100 Michigan St NE
#845
Grand Rapids, MI 49503
Phone (616) 391-8242

1300 Michigan St NE
Ste 103
Grand Rapids, MI 49503
Phone (616) 459-8338

100 Michigan St NE
Grand Rapids, MI 49503
Phone (616) 391-1680

4444 Kalamazoo Ave SE
Ste 200
Kentwood, MI 49508
Phone (616) 391-5600

Interoperability endpoints

  • Direct secure messaging: kknudson8259@epic00.corewelldirect.org

Organizations & group practices 4

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.

Hospital & facility affiliations 2

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1149638400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775606400000",
    "number": "1063452118",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "100 MICHIGAN ST NE # MC845",
            "city": "GRAND RAPIDS",
            "state": "MI",
            "postal_code": "495032560"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "80 68TH ST SE STE 301",
            "city": "GRAND RAPIDS",
            "state": "MI",
            "postal_code": "495486980",
            "telephone_number": "616-391-3302"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KNUDSON",
        "first_name": "KATHERYN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-06-07",
        "last_updated": "2026-04-08",
        "certification_date": "2026-04-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "MI",
            "license": "4301054863",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Grand Rapids, MI

Sources for this page

Verify at the official NPI Registry.