HILLARY MAXINE OTTENBAKER FNP-C
NPI 1689281396
Nurse Practitioner - Family in Grand Rapids, MI
About Hillary Maxine Ottenbaker Fnp-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HILLARY MAXINE OTTENBAKER FNP-C (NPI 1689281396) is an individual family provider in Grand Rapids, Michigan, licensed in Michigan (4704316318) and active in the NPI registry since September 2020. She is enrolled in Medicare PECOS, is affiliated with Corewell Health Zeeland Hospital, and is a graduate of Michigan State University College Of Human Medicine (2020).
NPPES Registry Identity
Specialties & Licenses
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
Hillary Maxine Ottenbaker Fnp-c 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 Reassignment
Medicare enrollment records show Hillary Ottenbaker reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Grand Rapids, MI 49525
- Reassigned Medicare billing, Michigan enrollment
- 2,446 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 9
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Corewell Health Zeeland Hospital
Acute Care Hospitals · Zeeland, MISpectrum Health
Acute Care Hospitals · Grand Rapids, MITrinity Health Grand Haven Hospital
Acute Care Hospitals · Grand Haven, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 49525 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 20
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 Hillary Ottenbaker's NPI number?
The NPI number for Hillary Ottenbaker is 1689281396. It was assigned to this individual provider in the NPPES registry on September 26, 2020.
Where is Hillary Ottenbaker located?
Hillary Ottenbaker practices at 2750 E Beltline Ave NE, Grand Rapids, MI 49525. The listed phone number is (616) 267-7104.
What is Hillary Ottenbaker's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Hillary Ottenbaker enrolled in Medicare?
Yes. Hillary Ottenbaker 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 organization bills Medicare for Hillary Ottenbaker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Hillary Ottenbaker reassigns Medicare benefits to Spectrum Health Primary Care Partners (Grand Rapids, MI). The 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 Hillary Ottenbaker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Hillary Ottenbaker accept?
Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company and Priority Health list Hillary Ottenbaker 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 Hillary Ottenbaker affiliated with any hospitals?
According to CMS data, Hillary Ottenbaker is affiliated with Corewell Health Zeeland Hospital, Spectrum Health and Trinity Health Grand Haven Hospital.
When was this NPI record last updated?
The NPPES record for Hillary Ottenbaker was last updated on August 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.