Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mariann M Channell, MD

Individual provider Ophthalmology Physician · NPI 1225030596

Mariann M Channell, MD is an Ophthalmology in St Clair Shores, Michigan. Graduated from Wayne State University School of Medicine in 1980, 46 years ago. Practices with Richard C Mertz Jr MD PC, a 5-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
46
Trained at
Wayne State University School of Medicine
Licensed in
MI
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

21711 Greater Mack Ave
St Clair Shores, MI 48080-2418
Phone: (586) 774-0393
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence 4301043844 (MI)

Record details

NPI number1225030596
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 1, 2005
Last updated in NPPESJune 3, 2008

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOPHTHALMOLOGY
Medical schoolWAYNE STATE UNIVERSITY SCHOOL OF MEDICINE
Graduated 1980 (46 years in practice)
Group practice Richard C Mertz Jr Md Pc — 5 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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