Doctor profile · Federal record
Dr. Aaron Cohn, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · Gastroenterology Physician · Grayslake, IL
- NPI 1841586211
- Accepts Medicare
- MIPS 91.3 / 100 · 2023
- 15 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
1475 E Belvidere RD Ste 301
Grayslake, IL 600302016
(847) 535-6083
fax (224) 271-4910 - Additional location
-
5841 S Maryland Ave
Chicago, IL 606371447
(773) 702-1000 - Additional location
-
10103 Ridgegate Pkwy Ste 312
Lone Tree, CO 801245525
(303) 788-8888
fax (303) 790-2567
Credentials & registration
- NPI registered
- June 2011 — 15 yrs on file
- Profile last updated
- July 21, 2022
- Year of graduation
- 2011 — 15 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State licenses (3)
- Illinois #036.146777 · Illinois #125.059364 · Colorado #DR.0058264
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1841586211. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
685
Distinct HCPCS
10
Medicare allowed
$104,279
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99204 |
New patient office or other outpatient visit, 45-59 minutes | 122 | 122 | $173 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 116 | 102 | $133 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 57 | 46 | $186 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 53 | 53 | $165 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 53 | 53 | $252 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 41 | 40 | $135 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 37 | 37 | $83 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 33 | 33 | $78 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 30 | 17 | $79 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 23 | 23 | $160 |
In context: peer comparison
Among 2 peers in Grayslake Gastroenterology Physician, average services per provider: 39. This provider delivers 18× the peer median.Open Payments
Industry payments received
All-time total
$537
Transactions
15
Manufacturers
3
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Janssen Biotech, INC. | 8 | $247.39 | |
| Abbvie INC. | 6 | $164.17 | |
| Aimmune Therapeutics, INC. | 1 | $124.99 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
554
Patients
257
Total drug cost
$61,764
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 165 | 67 | $3,406 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) | Brand | 117 | 113 | $9,484 |
| Linzess (Linaclotide) | Brand | 35 | 0 | $27,779 |
| Dicyclomine Hcl | Generic | 28 | 13 | $558 |
| Pantoprazole Sodium | Generic | 28 | 11 | $783 |
| Diphenoxylate-Atropine (Diphenoxylate Hcl/Atropine) | Brand | 27 | 0 | $670 |
| Cholestyramine (Cholestyramine (With Sugar)) | Brand | 26 | 0 | $1,772 |
| Vancomycin Hcl | Generic | 24 | 0 | $10,173 |
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 23 | 23 | $436 |
| Suprep (Sodium, Potassium,Mag Sulfates) | Brand | 18 | 18 | $2,198 |
Hospital affiliations
Frequently asked questions
What is Dr. Aaron Cohn's medical specialty?
Dr. Aaron Cohn practices Gastroenterology Physician in Grayslake, IL.
Where does Dr. Aaron Cohn practice?
Dr. Aaron Cohn practices at 1475 E Belvidere RD Ste 301, Grayslake, IL 600302016. Office phone: 8475356083.
What is Dr. Aaron Cohn's NPI?
Dr. Aaron Cohn's National Provider Identifier (NPI) is 1841586211, issued by NPPES.
Does Dr. Aaron Cohn accept Medicare assignment?
Yes. Dr. Aaron Cohn accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Aaron Cohn commonly perform?
Top Medicare-reported procedures in 2023: New patient office or other outpatient visit (HCPCS 99204); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.