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

Dr. James G. Corwin, MD

Individual provider Internal Medicine Physician · NPI 1558363374

Dr. James G. Corwin, MD practises Internal Medicine in Cincinnati, Ohio. Graduated from University of Missouri, Columbia School of Medicine in 1989, 37 years ago. Practices with The Christ Hospital Medical Associates, LLC, a 270-clinician group and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
37
Trained at
University of Missouri, Columbia School of Medicine
Licensed in
OH
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

3805 Edwards Rd Ste 300
Cincinnati, OH 45209-1900
Phone: (513) 871-5900
Fax: (513) 871-5970
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 35060948 (OH)

Record details

NPI number1558363374
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 11, 2005
Last updated in NPPESOctober 23, 2020
Certification dateOctober 23, 2020

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF MISSOURI, COLUMBIA SCHOOL OF MEDICINE
Graduated 1989 (37 years in practice)
Group practice The Christ Hospital Medical Associates, Llc — 270 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of skin lesions 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients350
Services billed 979 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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. Those with a page here are linked.

Colleagues at The Christ Hospital Medical Associates, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 270 clinicians in the practice; 12 are shown here.

Other providers in Cincinnati