Dr. James G. Corwin, MD
- Medicare services, 2024
- 884
- Medicare patients, 2024
- 350
- Part D claims, 2024
- 7,735
- Hospital affiliations
- 5
- Industry payments
- $59
- Practice address
- 3805 Edwards Rd Ste 360 Suite 360, Cincinnati, OH 45209
- Practice phone
- Call (513) 871-7848
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Tchma
Primary care practice · Cincinnati, Ohio
Find Dr. Corwin's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. James G. Corwin is an internist in Cincinnati, Ohio
Dr. Corwin practices at Tchma in Cincinnati, Ohio.
Dr. Corwin's NPI, 1558363374, was assigned on August 11, 2005. Dr. Corwin graduated from University of Missouri, Columbia School of Medicine in 1989. Dr. Corwin holds Ohio license 35060948.
- NPI
- 1558363374NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6507991783
- NPI enumeration date
- August 11, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (513) 871-7848
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. James G. Corwin practices at Tchma in Cincinnati, Ohio
Dr. Corwin's primary practice is Tchma, at 3805 Edwards Rd Ste 360 Suite 360, Cincinnati, OH 45209. The practice phone is (513) 871-7848.
- Tchma3805 Edwards Rd Ste 360 Suite 360, Cincinnati, OH 45209Phone(513) 871-7848
Source: Dmand AI Affiliation Data
Dr. James G. Corwin is affiliated with 6 sites of care and 1 medical group
Dr. Corwin's primary practice is Tchma in Cincinnati, Ohio. Dr. Corwin is also affiliated with University of Cincinnati Medical Center. The medical group on file is The Christ Hospital Medical Associates. Dmand AI also links Dr. Corwin to 4 more hospitals, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. James G. Corwin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Corwin practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Tchma | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. James G. Corwin is one of 4,708 internists in Ohio
Internal medicine is Dr. Corwin's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Corwin is licensed in Ohio.
Specialties and state licenses
- Internal medicine, OhioPrimary
Internists near Dr. Corwin
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. James G. Corwin billed Medicare for 884 services in 2024
CMS data shows 884 Medicare services from Dr. Corwin across 11 procedure codes in 2024, for 350 Medicare patients. Medicare paid $40,271 for them. Every service was in an office.
Dr. Corwin's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4292024: 4525%
- Other services
- 2023: 2782024: 31614%
- Tests and treatments
- 2023: 1172024: 1161%
Dr. Corwin compared with the Ohio median for internists, 2024
- Dr. Corwin
- Ohio median
- Medicare services
- 884vs 48782% above
- Medicare patients
- 350vs 19282% above
- Part D claims
- 7,093vs 29424.1 times
Medians across 4,703 internists in Ohio with Dmand AI profiles that report each measure.
Dr. Corwin's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Corwin and other internists in Ohio.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. James G. Corwin treated 350 Medicare patients in 2024, average age 75
CMS counts 350 Medicare patients who saw Dr. Corwin in 2024. The largest group is 65 to 74, with 191 patients. 75% of them have high cholesterol, and 60% have high blood pressure. Their average risk score is 0.95, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Corwin's median patient age at 67, with 43% women.
Dr. Corwin's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Corwin's Medicare patients by sex, 2024
- Women15945%
- Men19155%
Chronic conditions among Dr. Corwin's Medicare patients, 2024
- High cholesterol75%
- High blood pressure60%
- Arthritis36%
- Ischemic heart disease24%
- Diabetes19%
- Atrial fibrillation16%
- Cancer15%
- Chronic kidney disease13%
Share of Medicare patients with each condition. A patient can have several.
Dr. Corwin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women43%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. James G. Corwin wrote 7,735 Medicare Part D claims in 2024
In 2024, Dr. Corwin wrote 7,735 Medicare Part D claims for 777 patients. 88% of them were for generic drugs. CMS names the drug for 7,093 of them, across 123 drugs with 11 or more claims each, at $520,517 in total drug cost. In 2023, CMS named 5,919 claims across 109 drugs.
Dr. Corwin's Part D claims by kind of drug, 2024
- Generic6,783 claims88%
- Brand-name891 claims12%
- Other61 claims1%
Dr. Corwin's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Corwin's Part D claims, 2024
- Opioids2%181 of 7,735 claims
- Antibiotics2%190 of 7,735 claims
- Antipsychotics, patients 65 and over1%41 of 7,735 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 5,9192024: 7,09320%
Drugs named by CMS: 123 in 2024, 109 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. James G. Corwin takes part in Medicare
Dr. Corwin accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. James G. Corwin received $59 in industry payments from 2018 to 2022
CMS Open Payments shows 4 general payments to Dr. Corwin from 2 drug and device companies from 2018 to 2022. Food and beverage make up the largest share, 100% of the total. Abbott Laboratories paid the most, $47.
General payments to Dr. Corwin by program year, 2018 to 2022
Companies that paid Dr. Corwin the most, 2018 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. James G. Corwin graduated from University of Missouri, Columbia School of Medicine
Dr. Corwin graduated from University of Missouri, Columbia School of Medicine in 1989.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. James G. Corwin's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. James G. Corwin
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. James G. Corwin's NPI number?
Dr. James G. Corwin's NPI number is 1558363374. It was assigned on August 11, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. James G. Corwin?
Dr. James G. Corwin is an internist in Cincinnati, Ohio. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. James G. Corwin practice?
Dr. Corwin practices at 3805 Edwards Rd Ste 360 Suite 360, Cincinnati, OH 45209. Dr. Corwin's primary practice is Tchma in Cincinnati, Ohio. Dmand AI also links Dr. Corwin to 4 hospitals.
What is Dr. James G. Corwin's office phone number?
The practice phone on file for Dr. Corwin is (513) 871-7848.
What is Dr. James G. Corwin's medical license number?
Dr. Corwin holds Ohio license 35060948.
Which hospitals is Dr. James G. Corwin affiliated with?
Dr. Corwin is affiliated with University of Cincinnati Medical Center. Dmand AI links Dr. Corwin to 4 more hospitals.
What medical group is Dr. James G. Corwin part of?
Dr. Corwin is linked to The Christ Hospital Medical Associates.
Does Dr. James G. Corwin accept Medicare?
Yes. CMS data shows Dr. Corwin billed Medicare for 884 services in 2024, and Dr. Corwin accepts Medicare assignment.
How many Medicare patients does Dr. James G. Corwin see?
CMS counts 350 Medicare patients who saw Dr. Corwin in 2024, with an average age of 75.
What services does Dr. James G. Corwin bill to Medicare?
In 2024, Dr. Corwin's most billed Medicare services were medicare service (G0439), office visit, established patient (99213) and office visit, established patient (99214).
Show 4 more questionsShow fewer questions
Where did Dr. James G. Corwin go to medical school?
Dr. Corwin graduated from University of Missouri, Columbia School of Medicine in 1989.
What drugs does Dr. James G. Corwin prescribe most?
In 2024 Medicare Part D data, Dr. Corwin's most prescribed drugs by claims were Atorvastatin Calcium, Omeprazole and Amlodipine Besylate.
Has Dr. James G. Corwin received payments from drug or device companies?
CMS Open Payments shows $59 in general payments to Dr. Corwin from 2 companies from 2018 to 2022. The largest total came from Abbott Laboratories.
How long has Dr. James G. Corwin been practicing?
Dr. Corwin graduated from medical school in 1989, 37 years ago.
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