KATHERINE MICHELLE JOHNSON D.O.
NPI 1619393899
Obstetrics & Gynecology in Grand Rapids, MI
About Katherine Michelle Johnson D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KATHERINE MICHELLE JOHNSON D.O. (NPI 1619393899) is an individual obstetrics & gynecology provider in Grand Rapids, Michigan, licensed in Michigan (5101021006) and active in the NPI registry since March 2014. She is enrolled in Medicare PECOS, is affiliated with Spectrum Health, and is a graduate of Other (2014).
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 Michelle Johnson D.o. 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 Katherine Johnson 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 49503
- Reassigned Medicare billing, Michigan enrollment
- 2,446 clinicians in this Medicare group
Grand Rapids, MI 49503
- Reassigned Medicare billing, Michigan enrollment
- 405 clinicians in this Medicare group
Southfield, MI 48075
- Reassigned Medicare billing, Michigan enrollment
- Medicare enrollment name: Henry Ford Health St. John Hospital
- 520 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.
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 49503 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.
GRAND RAPIDS, MI 49503
GRAND RAPIDS, MI 49503
GRAND RAPIDS, MI 49503
GRAND RAPIDS, MI 49503
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 Johnson's NPI number?
The NPI number for Katherine Johnson is 1619393899. It was assigned to this individual provider in the NPPES registry on March 11, 2014.
Where is Katherine Johnson located?
Katherine Johnson practices at 221 Michigan St NE Ste 600, Grand Rapids, MI 49503. The listed phone number is (616) 774-7035.
What is Katherine Johnson's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Katherine Johnson enrolled in Medicare?
Yes. Katherine Johnson 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 Katherine Johnson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Johnson reassigns Medicare benefits to 3 organizations: Spectrum Health Primary Care Partners (Grand Rapids, MI), Spectrum Health Hospitals (Grand Rapids, MI) and Ascension St John Hospital (Southfield, 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 Katherine Johnson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Katherine Johnson 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 2 other insurers list Katherine Johnson 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 Johnson affiliated with any hospitals?
According to CMS data, Katherine Johnson is affiliated with Spectrum Health.
When was this NPI record last updated?
The NPPES record for Katherine Johnson was last updated on July 11, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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 Michelle Johnson, D.O. · NPI 1619393899
Obstetrics & Gynecology physician in Grand Rapids, Michigan. Individual provider, active in the CMS NPPES registry since March 11, 2014.
## Identity
- **NPI:** 1619393899 (Entity type: Individual)
- **Enumerated:** March 11, 2014
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 5101021006 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 221 MICHIGAN ST NE STE 600, Grand Rapids, MI 49503-2540
- **Phone:** (616) 774-7035
## 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 1689499667, Grand Rapids, MI); Spectrum Health Hospitals (NPI 1558407189, Grand Rapids, MI); Ascension St John Hospital (NPI 1922397058, Southfield, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** July 11, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1619393899) · Data from the CMS NPPES public registry.