Individual provider Active NPI

Sara L Koster, FNP-BC

  • Family Nurse Practitioner
  • Grand Rapids, MI
National Provider Identifier
1740575877
Registry record updated Mar 26, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Nurse PractitionerTaxonomy code 363LF0000X
License
4704169831 Issued in MI
Practice address
100 Michigan St NE
Grand Rapids, MI 49503-2560
Phone
(616) 391-1680
NPI assigned
Jun 16, 2011
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 26, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Family Nurse Practitioner 363LF0000X 4704169831 MI Primary
Nurse Practitioner 363L00000X 4704169831 MI

Addresses

Primary practice location

100 Michigan St NE
Grand Rapids, MI 49503-2560

Mailing address

2537 Momentum PL
Chicago, IL 60689-5325
Phone (616) 975-1845

Other practice location 1

300 68th St SE
Grand Rapids, MI 49548-6927
Phone (616) 455-5000

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address pinerestCMHS@directaddress.pinerest.org Direct

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
I20110810000652 MI Practitioner - Nurse Practitioner 9830368745 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2010
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Pine Rest Christian Mental Health ServicesGroup PAC ID 4981506508, 354 clinicians
Metropolitan HospitalGroup PAC ID 5597651836, 421 clinicians

Practice addresses (Care Compare)

300 68TH St SE
Grand Rapids, MI 49548-6927
Phone (616) 455-5000

4055 Cascade Rd SE
Suite 100
Grand Rapids, MI 49546-2149
Phone (616) 252-4010

Hospital & facility affiliations

  • University of Michigan Health - West Hospital, Wyoming, MI, CCN 230236

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
4704169831MIMDNurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Metropolitan Hospital CurrentSince Feb 1, 2016 Accepting new patients

Locations

4055 Cascade Rd SE
Ste 100
Grand Rapids, MI 49546
Phone (616) 252-4010

5900 Byron Center Ave SW
Wyoming, MI 49519
Phone (616) 252-3243

5950 Metro Way SW
Wyoming, MI 49519
Phone (616) 252-8100

Ownership & related parties

All facility ownership & control disclosures 1

Facilities whose Medicare enrollment lists this provider’s PECOS associate ID as an owner or managing party.

FacilityTypeRoleSince
Emmanuel HospiceGrand Rapids, MI, CCN 231629 Hospice Corporate Director Feb 8, 2022

Owned or controlled facilities with NPI records 1

Facilities whose Medicare enrollment lists this provider as an owner, officer, director or managing party.

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.

Hospital & facility affiliations 1

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": "1308182400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1774483200000",
    "number": "1740575877",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2537 MOMENTUM PL",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606895325",
            "telephone_number": "616-975-1845",
            "fax_number": "616-285-0846"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "100 MICHIGAN ST NE",
            "city": "GRAND RAPIDS",
            "state": "MI",
            "postal_code": "495032560",
            "telephone_number": "616-391-1680"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "300 68th St SE",
            "address_purpose": "LOCATION",
            "city": "Grand Rapids",
            "state": "MI",
            "postal_code": "495486927",
            "country_code": "US",
            "telephone_number": "616-455-5000",
            "fax_number": "616-455-5960",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KOSTER",
        "first_name": "SARA",
        "middle_name": "L",
        "credential": "FNP-BC",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2011-06-16",
        "last_updated": "2026-03-26",
        "certification_date": "2026-03-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "MI",
            "license": "4704169831",
            "primary": true
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "MI",
            "license": "4704169831",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "pinerestCMHS@directaddress.pinerest.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "300 68th St SE",
            "city": "Grand Rapids",
            "state": "MI",
            "country_code": "US",
            "postal_code": "495486927",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Grand Rapids, MI

Sources for this page

Verify at the official NPI Registry.