DAVID MARK VIAU M.D.
NPI 1942543996
Emergency Medicine in Marquette, MI
About David Mark Viau M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DAVID MARK VIAU M.D. (NPI 1942543996) is an individual emergency medicine provider in Marquette, Michigan, licensed in Michigan (4301103754) and active in the NPI registry since March 2013. He is enrolled in Medicare PECOS, is affiliated with Uphs Marquette Dlp Hospital, and is a graduate of Wayne State University School Of Medicine (2013).
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
David Mark Viau M.d. 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
4Medicare enrollment records show David Viau reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Marquette, MI 49855
- Reassigned Medicare billing, Michigan enrollment
- 440 clinicians in this Medicare group
Marquette, MI 49855
- Reassigned Medicare billing, Michigan enrollment
- 136 clinicians in this Medicare group
Ishpeming, MI 49849
- Reassigned Medicare billing, Michigan enrollment
- 61 clinicians in this Medicare group
Escanaba, MI 49829
- Reassigned Medicare billing, Michigan enrollment
- 61 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 5
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Uphs Marquette Dlp Hospital
Acute Care Hospitals · Marquette, MIDickinson County Memorial Hospital
Acute Care Hospitals · Iron Mountain, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 49855 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.
MARQUETTE, MI 49855
MARQUETTE, MI 49855
MARQUETTE, MI 49855
MARQUETTE, MI 49855
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 David Viau's NPI number?
The NPI number for David Viau is 1942543996. It was assigned to this individual provider in the NPPES registry on March 28, 2013.
Where is David Viau located?
David Viau practices at 580 W College Ave Department Of Emergency Medicine, Marquette, MI 49855. The listed phone number is (906) 226-3561.
What is David Viau's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is David Viau enrolled in Medicare?
Yes. David Viau 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 David Viau's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Viau reassigns Medicare benefits to 4 organizations: Dlp Marquette Physician Practices Inc (Marquette, MI), Dickinson County Healthcare System (Marquette, MI), Acquisition Bell Hospital LLC (Ishpeming, MI) and Northern Michigan Emergency Physicians, LLP (Escanaba, 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 David Viau's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does David Viau accept?
Health plans from Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list David Viau 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 David Viau affiliated with any hospitals?
According to CMS data, David Viau is affiliated with Uphs Marquette Dlp Hospital and Dickinson County Memorial Hospital.
When was this NPI record last updated?
The NPPES record for David Viau was last updated on March 30, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# David Mark Viau, M.D. · NPI 1942543996
Emergency Medicine physician in Marquette, Michigan. Individual provider, active in the CMS NPPES registry since March 28, 2013.
## Identity
- **NPI:** 1942543996 (Entity type: Individual)
- **Enumerated:** March 28, 2013
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 4301103754 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 580 W COLLEGE AVE, DEPARTMENT OF EMERGENCY MEDICINE, Marquette, MI 49855-2736
- **Phone:** (906) 226-3561
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Dlp Marquette Physician Practices Inc (NPI 1013265065, Marquette, MI); Dickinson County Healthcare System (NPI 1710693346, Marquette, MI); Acquisition Bell Hospital LLC (NPI 1699101345, Ishpeming, MI); Northern Michigan Emergency Physicians, LLP (NPI 1417972183, Escanaba, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Wayne State University School Of Medicine, class of 2013
## Record status
- **NPPES last updated:** March 30, 2017
---
Source: [NPI Profile](https://npiprofile.com/npi/1942543996) · Data from the CMS NPPES public registry.