SPECTRUM HEALTH UNITED HOSP. FAMILY MED. AND OBSTETRICS & GYNECOLOGY
NPI 1538436852
Clinic/Center - Rural Health in Greenville, MI
About Spectrum Health United Hosp. Family Med. And Obstetrics & Gynecology NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SPECTRUM HEALTH UNITED HOSP. FAMILY MED. AND OBSTETRICS & GYNECOLOGY (NPI 1538436852) is a healthcare organization registered as a rural health in Greenville, Michigan and active in the NPI registry since December 2011. The organization lists Amanda Knuth, Controller, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 4
Other Names 2
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Spectrum Health United Hosp. Family Med. And Obstetrics & Gynecology is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
242Medicare enrollment records show 242 clinicians reassign Medicare billing to Spectrum Health United Hosp. Family Med. And Obstetrics & Gynecology, which bills Medicare for the services they deliver. Of these, 17 practice at this address and 38 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 20
Nearest to this location (20)
See all 242Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Spectrum Health United's NPI number?
The NPI number for Spectrum Health United is 1538436852. It was assigned to this organization in the NPPES registry on December 1, 2011. The provider is doing business as Spectrum Health United Hosp. Family Med. And Obstetrics & Gynecology and Corewell Health Greenville Hospital Multispecialty Center - Oak St.
Where is Spectrum Health United located?
Spectrum Health United is located at 1202 W Oak St, Greenville, MI 48838. The listed phone number is (616) 754-2944.
What is Spectrum Health United's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Rural Health, with taxonomy code 261QR1300X.
Is Spectrum Health United enrolled in Medicare?
Yes. Spectrum Health United is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Spectrum Health United?
According to the CMS Revalidation Reassignment List (October 2026 release), 242 clinicians in 20 Medicare specialties reassign their Medicare billing to Spectrum Health United. A 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 the clinician's services. The largest specialties are Nurse Practitioner (98), Family Practice (43) and Pediatric Medicine (22). Of these, 17 practice at this address and 38 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Spectrum Health United accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Spectrum Health United 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.
When was this NPI record last updated?
The NPPES record for Spectrum Health United was last updated on August 23, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.
# Spectrum Health United Hosp. Family Med. And Obstetrics & Gynecology · NPI 1538436852
Rural Health organization in Greenville, Michigan. Organization record, active in the CMS NPPES registry since December 1, 2011.
## Identity
- **NPI:** 1538436852 (Entity type: Organization)
- **Enumerated:** December 1, 2011
- **Primary specialty:** Clinic/Center - Rural Health · taxonomy 261QR1300X
- **Legal business name:** Spectrum Health United
- **Also known as:** Corewell Health Greenville Hospital Multispecialty Center - Oak St (Doing Business As)
- **Organization subpart:** No
- **Authorized official:** Amanda Knuth, CONTROLLER
## Practice location
- **Address:** 1202 W OAK ST, Greenville, MI 48838-2155
- **Phone:** (616) 754-2944
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 242 clinicians in 20 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (98), Family Practice (43), Pediatric Medicine (22); 17 practice at this address and 38 within 10 miles; [full list](https://npiprofile.com/npi/1538436852/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 23, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1538436852) · Data from the CMS NPPES public registry.