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

Gregory Retzinger, MD

Individual provider Clinical Pathology/Laboratory Medicine Physician · NPI 1053334755

Gregory Retzinger, MD is a Pathology in Cincinnati, Ohio. Graduated from University of Chicago, Pritzker School of Medicine in 1983, 43 years ago. Practices with Northwestern Medical Faculty Foundation, a 4,394-clinician group and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
43
Trained at
University of Chicago, Pritzker School 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.

See every abbreviation used in this directory →

Practice location Address checks out

231 Albert Sabin Way Dept OF Pathology
Cincinnati, OH 45267-0001
Phone: (513) 558-4500
Fax: (513) 558-2289
Show map & directions

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

Specialties & licences

Clinical Pathology/Laboratory Medicine Physician (primary) Taxonomy 207ZP0105X · Licence 35-06-4628-R (OH)

Record details

NPI number1053334755
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 25, 2006
Last updated in NPPESJanuary 27, 2010

Medicare enrollment

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

Medicare specialtyPATHOLOGY
Medical schoolUNIVERSITY OF CHICAGO, PRITZKER SCHOOL OF MEDICINE
Graduated 1983 (43 years in practice)
Group practice Northwestern Medical Faculty Foundation — 4394 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

Other providers in Cincinnati