ROBERT HOLWERDA DO
NPI 1205995735
Psychiatry & Neurology - Psychiatry in Grand Rapids, MI
About Robert Holwerda Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ROBERT HOLWERDA DO (NPI 1205995735) is an individual psychiatry provider in Grand Rapids, Michigan, licensed in Michigan (5101009935) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS and maintains a secondary practice location in Grand Rapids.
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 (PECOS)
Robert Holwerda Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Robert Holwerda reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Grand Rapids, MI 49503
- Reassigned Medicare billing, Michigan enrollment
- 164 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.
Physician 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.
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
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 Robert Holwerda's NPI number?
The NPI number for Robert Holwerda is 1205995735. It was assigned to this individual provider in the NPPES registry on December 8, 2006.
Where is Robert Holwerda located?
Robert Holwerda practices at 790 Fuller Ave NE, Grand Rapids, MI 49503. The listed phone number is (616) 336-3909.
What is Robert Holwerda's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Robert Holwerda enrolled in Medicare?
Yes. Robert Holwerda is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Robert Holwerda's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Robert Holwerda reassigns Medicare benefits to Kent County Cmh Authority (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 Robert Holwerda's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Robert Holwerda accept?
Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company and Priority Health list Robert Holwerda 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 Robert Holwerda was last updated on March 29, 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.