DR. MARK DAVID BROMBACHER MD
NPI 1437737095
Emergency Medicine in Grand Rapids, MI
About Dr. Mark David Brombacher Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK DAVID BROMBACHER MD (NPI 1437737095) is an individual emergency medicine provider in Grand Rapids, Michigan, licensed in Michigan (4351047952) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS, is affiliated with Spectrum Health United Hospital, and is a graduate of New York Medical College (2021).
NPPES Registry Identity
Specialties & Licenses 2
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
Dr. Mark David Brombacher 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 Reassignments
2Medicare enrollment records show Mark Brombacher reassigns Medicare billing to 2 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
- 265 clinicians in this Medicare group
Grand Rapids, MI 49503
- Reassigned Medicare billing, Michigan enrollment
- 192 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 3
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 3
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 Pennock Hospital
Critical Access Hospitals · Hastings, 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 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Mark Brombacher's NPI number?
The NPI number for Mark Brombacher is 1437737095. It was assigned to this individual provider in the NPPES registry on April 1, 2021.
Where is Mark Brombacher located?
Mark Brombacher practices at 100 Michigan St NE # Mc49, Grand Rapids, MI 49503. The listed phone number is (616) 391-1680.
What is Mark Brombacher's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Mark Brombacher enrolled in Medicare?
Yes. Mark Brombacher 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 Mark Brombacher's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Brombacher reassigns Medicare benefits to 2 organizations: Ecs Western Michigan PC (Grand Rapids, MI) and Visionary Medical Services PC (Grand Rapids, 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 Mark Brombacher's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Brombacher accept?
Health plans from Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Mark Brombacher 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 Mark Brombacher affiliated with any hospitals?
According to CMS data, Mark Brombacher is affiliated with Spectrum Health United Hospital, Spectrum Health and Corewell Health Pennock Hospital.
When was this NPI record last updated?
The NPPES record for Mark Brombacher was last updated on September 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Dr. Mark David Brombacher, MD · NPI 1437737095
Emergency Medicine physician in Grand Rapids, Michigan. Individual provider, active in the CMS NPPES registry since April 1, 2021.
## Identity
- **NPI:** 1437737095 (Entity type: Individual)
- **Enumerated:** April 1, 2021
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 4351047952 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 100 MICHIGAN ST NE # MC49, Grand Rapids, MI 49503-2560
- **Phone:** (616) 391-1680 · **Fax:** (616) 391-3674
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Ecs Western Michigan PC (NPI 1992281000, Grand Rapids, MI); Visionary Medical Services PC (NPI 1538216569, Grand Rapids, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** New York Medical College, class of 2021
## Record status
- **NPPES last updated:** September 10, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1437737095) · Data from the CMS NPPES public registry.