DR. MICHAEL JAMES DIONNE M.D.
NPI 1700933371
Internal Medicine in Grosse Pointe Farms, MI
About Dr. Michael James Dionne M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MICHAEL JAMES DIONNE M.D. (NPI 1700933371) is an individual internal medicine provider in Grosse Pointe Farms, Michigan, licensed in Michigan (047871) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS, is affiliated with Beaumont Hospital - Grosse Pointe, and is a graduate of Wayne State University School Of Medicine (1982).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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 and accepts Medicare assignment
Dr. Michael James Dionne 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
2Medicare enrollment records show Michael Dionne reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Royal Oak, MI 48073
- Reassigned Medicare billing, Michigan enrollment
- 154 clinicians in this Medicare group
Dearborn, MI 48124
- Reassigned Medicare billing, Michigan enrollment
- 453 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 7
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.
Beaumont Hospital - Grosse Pointe
Acute Care Hospitals · Grosse Pointe, MIBeaumont Hospital Royal Oak
Acute Care Hospitals · Royal Oak, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48236 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 4
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 Michael Dionne's NPI number?
The NPI number for Michael Dionne is 1700933371. It was assigned to this individual provider in the NPPES registry on January 4, 2007.
Where is Michael Dionne located?
Michael Dionne practices at 131 Kercheval Ave Ste 330, Grosse Pointe Farms, MI 48236. The listed phone number is (313) 885-5700.
What is Michael Dionne's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Michael Dionne enrolled in Medicare?
Yes. Michael Dionne 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 Michael Dionne's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Dionne reassigns Medicare benefits to 2 organizations: William Beaumont Hospital (Royal Oak, MI) and Oakwood Ambulatory LLC (Dearborn, 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 Michael Dionne's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michael Dionne 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 and 2 other insurers list Michael Dionne 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 Michael Dionne affiliated with any hospitals?
According to CMS data, Michael Dionne is affiliated with Beaumont Hospital - Grosse Pointe and Beaumont Hospital Royal Oak.
When was this NPI record last updated?
The NPPES record for Michael Dionne was last updated on October 21, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.