MARK E BERNTHAL OD
NPI 1811991391
Optometrist in St Clair Shores, MI
About Mark E Bernthal Od NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK E BERNTHAL OD (NPI 1811991391) is an individual optometrist in St Clair Shores, Michigan, licensed in Michigan (4901002685) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS and is a graduate of Illinois College Of Optometry At Chicago (1979).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
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
Mark E Bernthal Od 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 Mark Bernthal reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
St Clair Shores, MI 48080
- Reassigned Medicare billing, Michigan enrollment
- 8 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 2
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 48080 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.
Reported Quality Measures
Other Providers at the Same Location NPPES 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAINT CLAIR SHORES, MI 48080
SAINT CLAIR SHORES, MI 48080
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 Bernthal's NPI number?
The NPI number for Mark Bernthal is 1811991391. It was assigned to this individual provider in the NPPES registry on June 13, 2005.
Where is Mark Bernthal located?
Mark Bernthal practices at 21711 Greater Mack Ave, St Clair Shores, MI 48080. The listed phone number is (586) 774-0393.
What is Mark Bernthal's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Mark Bernthal enrolled in Medicare?
Yes. Mark Bernthal 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 Mark Bernthal's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Bernthal reassigns Medicare benefits to Richard C Mertz Jr MD PC (St Clair Shores, 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 Mark Bernthal's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Bernthal accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, Blue Cross Blue Shield of Wyoming and Blue Cross and Blue Shield of Louisiana and 11 other insurers list Mark Bernthal 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 Mark Bernthal was last updated on June 11, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.