KATHERINE RACHEL VAN OSS MD
NPI 1801020474
Preventive Medicine - Public Health & General Preventive Medicine in Grand Rapids, MI
About Katherine Rachel Van Oss Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KATHERINE RACHEL VAN OSS MD (NPI 1801020474) is an individual public health & general preventive medicine provider in Grand Rapids, Michigan, licensed in Michigan (4301510374) and active in the NPI registry since May 2009. She is enrolled in Medicare PECOS, is affiliated with Spectrum Health United Hospital, and is a graduate of Other (2009).
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
Katherine Rachel Van Oss Md 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 Katherine Van Oss reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Grand Rapids, MI 49546
- 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 6
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Spectrum Health United Hospital
Acute Care Hospitals · Greenville, MISpectrum Health
Acute Care Hospitals · Grand Rapids, MICorewell Health Big Rapids Hospital
Acute Care Hospitals · Big Rapids, MICorewell Health Gerber Hospital
Critical Access Hospitals · Fremont, MICorewell Health Pennock Hospital
Critical Access Hospitals · Hastings, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 49546 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.
GRAND RAPIDS, MI 49546
GRAND RAPIDS, MI 49546
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 Katherine Van Oss's NPI number?
The NPI number for Katherine Van Oss is 1801020474. It was assigned to this individual provider in the NPPES registry on May 11, 2009.
Where is Katherine Van Oss located?
Katherine Van Oss practices at 4069 Lake Dr SE Ste 118, Grand Rapids, MI 49546. The listed phone number is (616) 267-8520.
What is Katherine Van Oss's specialty?
The primary specialty registered for this NPI is Preventive Medicine, specializing in Public Health & General Preventive Medicine, with taxonomy code 2083P0901X.
Is Katherine Van Oss enrolled in Medicare?
Yes. Katherine Van Oss 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 Katherine Van Oss's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Van Oss 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 Katherine Van Oss's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Katherine Van Oss 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 and 1 other insurer list Katherine Van Oss 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 Katherine Van Oss affiliated with any hospitals?
According to CMS data, Katherine Van Oss is affiliated with Spectrum Health United Hospital, Spectrum Health, Corewell Health Big Rapids Hospital, Corewell Health Gerber Hospital and Corewell Health Pennock Hospital.
When was this NPI record last updated?
The NPPES record for Katherine Van Oss was last updated on December 11, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Katherine Rachel Van Oss, MD · NPI 1801020474
Public Health & General Preventive Medicine physician in Grand Rapids, Michigan. Individual provider, active in the CMS NPPES registry since May 11, 2009.
## Identity
- **NPI:** 1801020474 (Entity type: Individual)
- **Enumerated:** May 11, 2009
- **Primary specialty:** Preventive Medicine - Public Health & General Preventive Medicine · taxonomy 2083P0901X
- **State license:** 4301510374 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 4069 LAKE DR SE STE 118, Grand Rapids, MI 49546-8816
- **Phone:** (616) 267-8520
## 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:** Spectrum Health Primary Care Partners (NPI 1043655780, Grand Rapids, MI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2009
## Record status
- **NPPES last updated:** December 11, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1801020474) · Data from the CMS NPPES public registry.