Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Gregory Wayne Rouan, MD

Individual provider Internal Medicine Physician · NPI 1023066222

Gregory Wayne Rouan, MD practises Internal Medicine in Cincinnati, Ohio. Graduated from University of Cincinnati College of Medicine in 1980, 46 years ago. Practices with University of Cincinnati Physicians Company LLC, a 1,476-clinician group and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
46
Trained at
University of Cincinnati 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.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

222 Piedmont Ave Ste 6000
Cincinnati, OH 45219-4231 Not confirmed with CMS for 13 years — call before visiting
Phone: (513) 475-7880
Fax: (513) 475-7327
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 35-046436 (OH)

Record details

NPI number1023066222
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 4, 2006
Last updated in NPPESMarch 12, 2013

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF CINCINNATI COLLEGE OF MEDICINE
Graduated 1980 (46 years in practice)
Group practice University Of Cincinnati Physicians Company Llc — 1476 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients142
Services billed 807 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at University of Cincinnati Physicians Company LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1476 clinicians in the practice; 12 are shown here.

Other providers in Cincinnati