DR. J MARK JOLIAT MD
NPI 1780645143
Internal Medicine in Troy, MI
About Dr. J Mark Joliat Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. J MARK JOLIAT MD (NPI 1780645143) is an individual internal medicine provider in Troy, Michigan, licensed in Michigan (040407) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Beaumont Hospital Royal Oak, and is a graduate of Wayne State University School Of Medicine (1977).
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
Dr. J Mark Joliat 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 Reassignment
Medicare enrollment records show J Mark Joliat reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Rochester Hills, MI 48307
- Reassigned Medicare billing, Michigan enrollment
- 66 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 34
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Beaumont Hospital Royal Oak
Acute Care Hospitals · Royal Oak, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48098 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.
Referred Medical Equipment & Supplies CMS DME claims 5
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
TROY, MI 48098
TROY, MI 48098
TROY, MI 48098
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 J Mark Joliat's NPI number?
The NPI number for J Mark Joliat is 1780645143. It was assigned to this individual provider in the NPPES registry on March 28, 2006.
Where is J Mark Joliat located?
J Mark Joliat practices at 4600 Investment Dr Ste 300, Troy, MI 48098. The listed phone number is (248) 267-5000.
What is J Mark Joliat's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is J Mark Joliat enrolled in Medicare?
Yes. J Mark Joliat 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 J Mark Joliat's services?
According to the CMS Revalidation Reassignment List (October 2026 release), J Mark Joliat reassigns Medicare benefits to Arcturus Healthcare Plc (Rochester Hills, 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 J Mark Joliat's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does J Mark Joliat accept?
Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, Priority Health and UnitedHealthcare list J Mark Joliat 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 J Mark Joliat affiliated with any hospitals?
According to CMS data, J Mark Joliat is affiliated with Beaumont Hospital Royal Oak.
When was this NPI record last updated?
The NPPES record for J Mark Joliat was last updated on January 24, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.