James G. Corwin, M.D.
Internal Medicine Physician · Cincinnati, OH
James G. Corwin, M.D. is an internal medicine physician with a practice address in Cincinnati, Ohio, and NPI 1558363374, issued on Aug 11, 2005. Check the license (Ohio 35060948, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- James G. Corwin
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 35060948 OH
Self-reported in NPPES; status is on the state search - Practice location
- 3805 Edwards RD, Cincinnati, OH 45209
- Phone
- (513) 871-5900
- Enumerated
- Aug 11, 2005
- Record last updated
- Oct 23, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (513) 871-5970
- Medicaid ID
- 0666784 OH
- Medicare enrollment
- Enrolled (PECOS I20100312000392); accepts Medicare assignment
- Medical or professional school
- University Of Missouri, Columbia School Of Medicine, 1989
- Entity
- Type 1 · individual
Also registered at 3805 Edwards RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Janis Eiler, M.D.Internal Medicine Physician1942202429
- David Fisher, M.D.Internal Medicine Physician1073691440
- Jessica Fornash, APRNFamily Nurse Practitioner1598336364
Verify James G. Corwin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35060948Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average internal medicine physician in 2024
7,735 Medicare Part D claims for 777 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 181 claims were for opioids.
Most prescribed
- Atorvastatin Calcium618 claims
- Omeprazole357 claims
- Amlodipine Besylate250 claims
- Rosuvastatin Calcium223 claims
- Pantoprazole Sodium210 claims
- Lisinopril206 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- The Christ Hospital Medical Associates, LLCCincinnati, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
566 internal medicine physician records list a practice address in Cincinnati
They are 566 of the 31,362 NPPES records with a practice address in Cincinnati, and 5,277 internal medicine physician records in Ohio.
All 566 in Cincinnati → All 5,277 in Ohio → Every provider in Cincinnati →
Other internal medicine physician records in Ohio
- Evan Abalos, D.O.Toledo, OH1194163089
- Susan Abbott, MDCincinnati, OH1568414290
- Walid Abboud, MDCleveland, OH1245295559
- Joelle Abdallah, MDColumbus, OH1912577651
- Mandi Abdel Ahad, DOCleveland, OH1235870551
- Saaid Abdel-Ghani, M.D.Columbus, OH1598926529
- Bahaa Abdelghaffar, MDCleveland, OH1265954275
- John Abdelnour, MDCleveland, OH1114656931
- Ahmad Abdelrahman, MDToledo, OH1134859192
- Nawal Abdi, MDCleveland, OH1154002582
Common questions
What is James G. Corwin, M.D.'s NPI number?
James G. Corwin, M.D.'s National Provider Identifier (NPI) is 1558363374, issued on Aug 11, 2005. An NPI identifies a provider in billing; it is not a license.
Where is James G. Corwin, M.D. located?
The NPPES record lists a practice address at 3805 Edwards RD, Cincinnati, OH, 45209. Phone: (513) 871-5900. Providers update this record themselves, so call before visiting.
How can I verify James G. Corwin, M.D.'s license?
NPPES lists Ohio license number 35060948, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does James G. Corwin, M.D. prescribe under Medicare Part D?
In 2024, James G. Corwin, M.D. had 7,735 Medicare Part D claims for 777 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.