COLLEEN ELIZABETH TILLEMA FNP
NPI 1720503329
Nurse Practitioner - Family in Ada, MI
About Colleen Elizabeth Tillema Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
COLLEEN ELIZABETH TILLEMA FNP (NPI 1720503329) is an individual family provider in Ada, Michigan, licensed in Michigan (4704297552) and active in the NPI registry since August 2017. She is enrolled in Medicare PECOS, is affiliated with Spectrum Health, and maintains a secondary practice location in Central Point.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Colleen Elizabeth Tillema Fnp 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 Colleen Tillema 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 49546
- Reassigned Medicare billing, Michigan enrollment
- 2,446 clinicians in this Medicare group
Grand Rapids, MI 49503
- Reassigned Medicare billing, Michigan enrollment
- 737 clinicians in this Medicare group
Kalamazoo, MI 49007
- Reassigned Medicare billing, Michigan enrollment
- 75 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 2
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 49301 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 17
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Colleen Tillema's NPI number?
The NPI number for Colleen Tillema is 1720503329. It was assigned to this individual provider in the NPPES registry on August 4, 2017.
Where is Colleen Tillema located?
Colleen Tillema practices at 7128 Fulton St E, Ada, MI 49301. The listed phone number is (616) 825-3530.
What is Colleen Tillema's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Colleen Tillema enrolled in Medicare?
Yes. Colleen Tillema 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 Colleen Tillema's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Colleen Tillema reassigns Medicare benefits to 3 organizations: Spectrum Health Primary Care Partners (Grand Rapids, MI), Advantage Health Saint Mary's Medical Group (Grand Rapids, MI) and Family Health Center, Inc. (Kalamazoo, 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 Colleen Tillema's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Colleen Tillema accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian and Priority Health list Colleen Tillema 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 Colleen Tillema affiliated with any hospitals?
According to CMS data, Colleen Tillema is affiliated with Spectrum Health.
When was this NPI record last updated?
The NPPES record for Colleen Tillema was last updated on September 10, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Colleen Elizabeth Tillema, FNP · NPI 1720503329
Family physician in Ada, Michigan. Individual provider, active in the CMS NPPES registry since August 4, 2017.
## Identity
- **NPI:** 1720503329 (Entity type: Individual)
- **Enumerated:** August 4, 2017
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 4704297552 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 7128 FULTON ST E, Ada, MI 49301-8413
- **Phone:** (616) 825-3530
## 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 1528374683, Grand Rapids, MI); Advantage Health Saint Mary's Medical Group (NPI 1952340911, Grand Rapids, MI); Family Health Center, Inc. (NPI 1891005906, Kalamazoo, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** September 10, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1720503329) · Data from the CMS NPPES public registry.