DR. NATHAN AARON BROUWER MD
NPI 1083873384
Emergency Medicine in Ann Arbor, MI
About Dr. Nathan Aaron Brouwer Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. NATHAN AARON BROUWER MD (NPI 1083873384) is an individual emergency medicine provider in Ann Arbor, Michigan, licensed in Michigan (4301092612) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS.
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 (PECOS)
Dr. Nathan Aaron Brouwer Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Nathan Brouwer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Flint, MI 48507
- Reassigned Medicare billing, Michigan enrollment
- 467 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 4
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48109 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.
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
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 Nathan Brouwer's NPI number?
The NPI number for Nathan Brouwer is 1083873384. It was assigned to this individual provider in the NPPES registry on June 3, 2008.
Where is Nathan Brouwer located?
Nathan Brouwer practices at 1500 E Medical Center Dr B1 380 Tc, Ann Arbor, MI 48109. The listed phone number is (734) 763-7919.
What is Nathan Brouwer's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Nathan Brouwer enrolled in Medicare?
Yes. Nathan Brouwer is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Nathan Brouwer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nathan Brouwer reassigns Medicare benefits to Hurley Medical Center (Flint, 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 Nathan Brouwer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nathan Brouwer 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 list Nathan Brouwer 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 Nathan Brouwer was last updated on May 27, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Dr. Nathan Aaron Brouwer, MD · NPI 1083873384
Emergency Medicine physician in Ann Arbor, Michigan. Individual provider, active in the CMS NPPES registry since June 3, 2008.
## Identity
- **NPI:** 1083873384 (Entity type: Individual)
- **Enumerated:** June 3, 2008
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 4301092612 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 1500 E MEDICAL CENTER DR, B1 380 TC, Ann Arbor, MI 48109-5305
- **Phone:** (734) 763-7919 · **Fax:** (734) 763-9298
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Hurley Medical Center (NPI 1194143982, Flint, MI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 27, 2015
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Source: [NPI Profile](https://npiprofile.com/npi/1083873384) · Data from the CMS NPPES public registry.