PHILLIP MICHAEL BRIER DO
NPI 1649966656
Internal Medicine in Grand Rapids, MI
About Phillip Michael Brier Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PHILLIP MICHAEL BRIER DO (NPI 1649966656) is an individual internal medicine provider in Grand Rapids, Michigan, licensed in Michigan (5151016292) and active in the NPI registry since April 2023. He is enrolled in Medicare PECOS, is affiliated with Spectrum Health, and is a graduate of Other (2023).
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
Phillip Michael Brier Do 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 Phillip Brier 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
- 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.
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.
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 Phillip Brier's NPI number?
The NPI number for Phillip Brier is 1649966656. It was assigned to this individual provider in the NPPES registry on April 12, 2023.
Where is Phillip Brier located?
Phillip Brier practices at 100 Michigan St NE, Grand Rapids, MI 49503. The listed phone number is (616) 391-3139.
What is Phillip Brier's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Phillip Brier enrolled in Medicare?
Yes. Phillip Brier 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 Phillip Brier's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Phillip Brier 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 Phillip Brier's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Phillip Brier accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian and Priority Health list Phillip Brier 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 Phillip Brier affiliated with any hospitals?
According to CMS data, Phillip Brier is affiliated with Spectrum Health.
When was this NPI record last updated?
The NPPES record for Phillip Brier was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Phillip Michael Brier, DO · NPI 1649966656
Internal Medicine physician in Grand Rapids, Michigan. Individual provider, active in the CMS NPPES registry since April 12, 2023.
## Identity
- **NPI:** 1649966656 (Entity type: Individual)
- **Enumerated:** April 12, 2023
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 5151016292 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 100 MICHIGAN ST NE, Grand Rapids, MI 49503-2560
- **Phone:** (616) 391-3139
## 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 1790093763, Grand Rapids, MI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** July 13, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1649966656) · Data from the CMS NPPES public registry.