Dr. James Henry Cohn, MD
- Medicare services, 2023
- 352
- Part D claims, 2024
- 386
- Industry payments
- $5,966
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 201 E Huron St, Chicago, IL 60611
- Practice phone
- Call (312) 943-8566
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Internal Medicine Associates - Chicago (E Huron St)
Primary care practice · Chicago, Illinois
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Dr. James Henry Cohn is an internist in Chicago, Illinois
Dr. Cohn practices at Internal Medicine Associates - Chicago (E Huron St) in Chicago, Illinois.
Dr. Cohn's NPI, 1952367054, was assigned on April 26, 2006. Dr. Cohn graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1978. Dr. Cohn holds Illinois license 036 058882.
- NPI
- 1952367054NPI Registry (opens in a new tab)
- NPI enumeration date
- April 26, 2006
- NPI status
- Active
- Practice phone
- (312) 943-8566
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 74
- Medical school graduation
- 1978
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. James Henry Cohn practices at 2 locations in Chicago, Illinois
Dr. Cohn's primary practice is Internal Medicine Associates - Chicago (E Huron St), at 201 E Huron St, Chicago, IL 60611. The practice phone is (312) 943-8566. The NPI Registry lists Dr. Cohn's practice address as 676 N St Clair St, Chicago, IL 60611.
- Internal Medicine Associates - Chicago (E Huron St)Primary201 E Huron St, Chicago, IL 60611Phone(312) 943-8566
- NPI Registry address676 N St Clair St, Chicago, IL 60611 · Cook CountyPhone(312) 943-8566
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. James Henry Cohn is affiliated with 1 site of care and 1 medical group
Dr. Cohn's primary practice is Internal Medicine Associates - Chicago (E Huron St) in Chicago, Illinois. The medical group on file is Internal Medicine Associates.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. James Henry Cohn's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Cohn practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Internal Medicine Associates - Chicago (E Huron St) | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. James Henry Cohn is one of 5,652 internists in Illinois
Internal medicine is Dr. Cohn's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Cohn is licensed in Illinois.
Specialties and state licenses
- Internal medicine, IllinoisPrimary
Internists near Dr. Cohn
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 Henry Cohn billed Medicare for 352 services in 2023
CMS data shows 352 Medicare services from Dr. Cohn across 3 procedure codes in 2023. Medicare paid $25,456 for them. Every service was in an office.
Dr. Cohn's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 4832023: 28042%
- Other services
- 2022: 3342023: 7278%
- Tests and treatments
- 2022: 1712023: 0100%
Dr. Cohn compared with the Illinois median for internists, 2023
- Dr. Cohn
- Illinois median
- Medicare services
- 352vs 56638% below
- Part D claims
- 234vs 28418% below
Medians across 5,192 internists in Illinois with Dmand AI profiles that report each measure.
Dr. Cohn's most billed Medicare procedure codes, 2023
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. Cohn and other internists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. James Henry Cohn's patients have a median age of 74
Across all payers, Dmand AI patient panel data puts Dr. Cohn's median patient age at 74, with 35% women.
Dr. Cohn's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women35%
- Men64%
Source: Dmand AI Patient Panel Data
Dr. James Henry Cohn wrote 386 Medicare Part D claims in 2024
In 2024, Dr. Cohn wrote 386 Medicare Part D claims for 179 patients. 89% of them were for generic drugs. CMS names the drug for 234 of them, across 10 drugs with 11 or more claims each, at $18,788 in total drug cost. In 2023, CMS named 3,137 claims across 47 drugs.
Dr. Cohn's Part D claims by kind of drug, 2024
- Generic342 claims89%
- Brand-name and other44 claims11%
Dr. Cohn'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3,1372024: 23493%
Drugs named by CMS: 10 in 2024, 47 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
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Dr. James Henry Cohn received $5,966 in industry payments from 2016 to 2024
CMS Open Payments shows 344 general payments to Dr. Cohn from 32 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $1,080.
General payments to Dr. Cohn by program year, 2016 to 2024
General payments to Dr. Cohn by kind, 2016 to 2024
- Food and beverage$5,941100%
- Education$250%
Companies that paid Dr. Cohn the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. James Henry Cohn graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)
Dr. Cohn graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1978.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. James Henry Cohn'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 Data |
| 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) |
| 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 Henry Cohn
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What is Dr. James Henry Cohn's NPI number?
Dr. James Henry Cohn's NPI number is 1952367054. It was assigned on April 26, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. James Henry Cohn?
Dr. James Henry Cohn is an internist in Chicago, Illinois. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. James Henry Cohn practice?
Dr. Cohn practices at 201 E Huron St, Chicago, IL 60611. Dr. Cohn also practices at 676 N St Clair St, Chicago, IL 60611. Dr. Cohn's primary practice is Internal Medicine Associates - Chicago (E Huron St) in Chicago, Illinois.
What is Dr. James Henry Cohn's office phone number?
The practice phone on file for Dr. Cohn is (312) 943-8566.
What is Dr. James Henry Cohn's medical license number?
Dr. Cohn holds Illinois license 036 058882.
What medical group is Dr. James Henry Cohn part of?
Dr. Cohn is linked to Internal Medicine Associates.
Does Dr. James Henry Cohn accept Medicare?
Yes. CMS data shows Dr. Cohn billed Medicare for 352 services in 2023.
What services does Dr. James Henry Cohn bill to Medicare?
In 2023, Dr. Cohn's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and medicare service (G0439).
Where did Dr. James Henry Cohn go to medical school?
Dr. Cohn graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1978.
What drugs does Dr. James Henry Cohn prescribe most?
In 2024 Medicare Part D data, Dr. Cohn's most prescribed drugs by claims were Atorvastatin Calcium, Losartan Potassium and Levothyroxine Sodium.
Has Dr. James Henry Cohn received payments from drug or device companies?
CMS Open Payments shows $5,966 in general payments to Dr. Cohn from 32 companies from 2016 to 2024. The largest total came from Pfizer Inc.
How long has Dr. James Henry Cohn been practicing?
Dr. Cohn graduated from medical school in 1978, 48 years ago.
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