Individual provider Active NPI

Rachel Macak, MD

  • Pediatrics Physician
  • Grand Rapids, MI
National Provider Identifier
1053975300
Registry record updated Apr 3, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pediatrics PhysicianTaxonomy code 208000000X
License
4301511862 Issued in MI
Practice address
25 Michigan St NE Ste 2100
Grand Rapids, MI 49503-2526
Phone
(616) 391-8842
NPI assigned
Apr 23, 2019
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 3, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatrics Physician 208000000X 4301511862 MI Primary

Addresses

Primary practice location

25 Michigan St NE Ste 2100
Grand Rapids, MI 49503-2526

Mailing address

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

Other names 1

  • Rachel Butts Former name

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address RMACAK352367@DIRECT.MED.UTAH.EDU Direct University of Utah

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: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20240705000884 MI Practitioner - Pediatric Medicine 5799103347 Reassigns benefits to 1 organization

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Spectrum Health Primary Care Partners CurrentSince Aug 12, 2024 Accepting new patients
Spectrum Health Primary Care Partners CurrentSince Aug 12, 2024 Accepting new patients

Locations

25 Michigan St NE
Ste 2100
Grand Rapids, MI 49503
Phone (616) 391-3777

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

35 Michigan St NE
Ste 5301
Grand Rapids, MI 49503
Phone (616) 391-8842

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

Interoperability endpoints

  • Direct secure messaging: rmacak352367@direct.med.utah.edu
  • Direct secure messaging: rmacak2658061@epic00.corewelldirect.org

Organizations & group practices 2

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": "1555977600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775174400000",
    "number": "1053975300",
    "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": "25 MICHIGAN ST NE STE 2100",
            "city": "GRAND RAPIDS",
            "state": "MI",
            "postal_code": "495032526",
            "telephone_number": "616-391-8842"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MACAK",
        "first_name": "RACHEL",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-04-23",
        "last_updated": "2026-04-03",
        "certification_date": "2026-04-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "MI",
            "license": "4301511862",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "RMACAK352367@DIRECT.MED.UTAH.EDU",
            "affiliation": "Y",
            "affiliationName": "University of Utah",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "CDA/CCD/TXT",
            "address_1": "50 N Medical Dr",
            "city": "Salt Lake City",
            "state": "UT",
            "country_code": "US",
            "postal_code": "841320001",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "first_name": "RACHEL",
            "last_name": "BUTTS",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Grand Rapids, MI

Sources for this page

Verify at the official NPI Registry.