KATHY AMBER CRYSTAL NP
NPI 1841842192
Nurse Practitioner - Gerontology in Byron Center, MI
About Kathy Amber Crystal Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KATHY AMBER CRYSTAL NP (NPI 1841842192) is an individual gerontology provider in Byron Center, Michigan, licensed in Michigan (4704271880) and active in the NPI registry since July 2019. She is enrolled in Medicare PECOS, is affiliated with Spectrum Health, and is a graduate of Other (2019).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Kathy Amber Crystal Np is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Kathy Crystal reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Grand Rapids, MI 49548
- Reassigned Medicare billing, Michigan enrollment
- 2,446 clinicians in this Medicare group
Greenville, MI 48838
- Reassigned Medicare billing, Michigan enrollment
- 242 clinicians in this Medicare group
Reed City, MI 49677
- Reassigned Medicare billing, Michigan enrollment
- 132 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Spectrum Health
Acute Care Hospitals · Grand Rapids, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 49315 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BYRON CENTER, MI 49315
BYRON CENTER, MI 49315
BYRON CENTER, MI 49315
BYRON CENTER, MI 49315
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Kathy Crystal's NPI number?
The NPI number for Kathy Crystal is 1841842192. It was assigned to this individual provider in the NPPES registry on July 16, 2019. The provider is also known as Kathy Smith.
Where is Kathy Crystal located?
Kathy Crystal practices at 7751 Byron Center Ave SW Ste C, Byron Center, MI 49315. The listed phone number is (616) 267-7668.
What is Kathy Crystal's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Gerontology, with taxonomy code 363LG0600X.
Is Kathy Crystal enrolled in Medicare?
Yes. Kathy Crystal is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Kathy Crystal's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kathy Crystal reassigns Medicare benefits to 3 organizations: Spectrum Health Primary Care Partners (Grand Rapids, MI), Spectrum Health United (Greenville, MI) and Reed City Hospital Corporation (Reed City, MI). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Kathy Crystal's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Kathy Crystal accept?
Health plans from Priority Health list Kathy Crystal as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Kathy Crystal affiliated with any hospitals?
According to CMS data, Kathy Crystal is affiliated with Spectrum Health.
When was this NPI record last updated?
The NPPES record for Kathy Crystal was last updated on January 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Kathy Amber Crystal, NP · NPI 1841842192
Gerontology physician in Byron Center, Michigan. Individual provider, active in the CMS NPPES registry since July 16, 2019.
## Identity
- **NPI:** 1841842192 (Entity type: Individual)
- **Enumerated:** July 16, 2019
- **Primary specialty:** Nurse Practitioner - Gerontology · taxonomy 363LG0600X
- **State license:** 4704271880 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 7751 BYRON CENTER AVE SW STE C, Byron Center, MI 49315-8001
- **Phone:** (616) 267-7668
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Spectrum Health Primary Care Partners (NPI 1821422007, Grand Rapids, MI); Spectrum Health United (NPI 1538436852, Greenville, MI); Reed City Hospital Corporation (NPI 1538239892, Reed City, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** January 20, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1841842192) · Data from the CMS NPPES public registry.