Kathy Amber Crystal, NP

Primary specialty

Gerontology Nurse PractitionerTaxonomy code 363LG0600X

License

4704271880 Issued in MI

Practice address

7751 Byron Center Ave SW Ste C
Byron Center, MI 49315-8001

Phone

(616) 267-7668

NPI assigned

Jul 16, 2019

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other names 1

• Kathy Smith Former name

Electronic endpoints 2

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

Specialty

Nurse Practitioner

Education

Other, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Spectrum Health Primary Care PartnersGroup PAC ID 4587568647, 2,283 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Spectrum Health Hospital, Grand Rapids, MI, CCN 230038

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

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.

• Spectrum Health Primary Care Partners

  • Internal Medicine Physician
  • Grand Rapids, MI
  • NPI 1235188673
  Medicare reassignment Care Compare group
• Reed City Hospital Corporation

  • Family Medicine Physician
  • Reed City, MI
  • NPI 1831253798
  Medicare reassignment NPD
• Spectrum Health United

  • General Acute Care Hospital
  • Greenville, MI
  • NPI 1457304495
  Medicare reassignment

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

• Pennock Hospital

  • Critical Access Hospital
  • Hastings, MI
  • NPI 1932695525
  Care Compare affiliation
• Spectrum Health Hospitals

  • General Acute Care Hospital
  • Grand Rapids, MI
  • NPI 1922090554
  Care Compare affiliation

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

{
    "created_epoch": "1563235200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768867200000",
    "number": "1841842192",
    "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": "7751 BYRON CENTER AVE SW STE C",
            "city": "BYRON CENTER",
            "state": "MI",
            "postal_code": "493158001",
            "telephone_number": "616-267-7668"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CRYSTAL",
        "first_name": "KATHY",
        "middle_name": "AMBER",
        "credential": "NP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-07-16",
        "last_updated": "2026-01-20",
        "certification_date": "2026-01-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LG0600X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Gerontology",
            "state": "MI",
            "license": "4704271880",
            "primary": true
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "MI",
            "license": "4704271880",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicarr02.spectrumhealth.org/EpicFHIR/api/FHIR/R4/",
            "affiliation": "N",
            "address_1": "7751 Byron Center Ave SW Ste C",
            "city": "Byron Center",
            "state": "MI",
            "country_code": "US",
            "postal_code": "493158001",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "kcrystal104903@epic00.corewelldirect.org",
            "affiliation": "N",
            "address_1": "7751 Byron Center Ave SW Ste C",
            "city": "Byron Center",
            "state": "MI",
            "country_code": "US",
            "postal_code": "493158001",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "first_name": "KATHY",
            "last_name": "SMITH",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Morgan Cornelius, OD
• Kirsten Marie Cortes, PHARMD
• Catherine Mary Cross, RPH
• Jeffrey Cross, MD
• Justin Robert Crow, DNP
• Kelli Cummings
• Heiki Danielle Cunningham, RDN
• Russel F Curtis, OD
• James Richard Czapek I, PHARM.D.
• Rebecca Anne Dadles, PHARMACIST

• Gerontology Nurse Practitioner in Byron Center, MI
• Providers in Byron Center, MI by specialty
• Gerontology Nurse Practitioner in Michigan

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 20, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.