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

Dr. John J Mizenko, DO

Individual provider Gastroenterology Physician · NPI 1417958703

Dr. John J Mizenko, DO is a Gastroenterology Physician in Warrensville Heights, Ohio. Licensed in Ohio. Registered with an NPI since 2005.

Licensed in
OH
In the registry since
2005
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

4100 Warrensville Center Rd Ste 203
Warrensville Heights, OH 44122-7024
Phone: (216) 561-0801
Show map & directions

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

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 34001263M (OH)

Record details

NPI number1417958703
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedAugust 9, 2005
Last updated in NPPESJuly 13, 2026
Mailing address4100 Warrensville Center Rd, Suite 203, Warrensville Heights, OH 44122-7024

Other providers in Warrensville Heights