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

John J Baniewicz, MD

Individual provider Internal Medicine Physician · NPI 1285740530

John J Baniewicz, MD is an Internal Medicine in Mentor, Ohio. Graduated from Northeastern Ohio University College of Medicine in 1988, 38 years ago. Practices with Lake Hospital System, Inc, a 94-clinician group and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
38
Trained at
Northeastern Ohio University College of Medicine
Licensed in
OH
In the registry since
2006
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

9485 Mentor Ave Ste 210
Mentor, OH 44060
Phone: (440) 205-5835
Fax: (440) 205-5735
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 35-058500 (OH)

Record details

NPI number1285740530
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 21, 2006
Last updated in NPPESMarch 1, 2021
Certification dateMarch 1, 2021
Mailing address36000 Euclid Ave, Mso, Willoughby, OH 44094

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolNORTHEASTERN OHIO UNIVERSITY COLLEGE OF MEDICINE
Graduated 1988 (38 years in practice)
Group practice Lake Hospital System, Inc. — 94 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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