Doctor profile · Federal record
Dr. Mazin Fattouhi, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Hospitalist Physician · Long Grove, IL
- NPI 1639519309
- Accepts Medicare
- 38 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
3880 Salem Lake Dr, F
Long Grove, IL 600475292
(847) 719-2220
fax (847) 719-2265
Credentials & registration
- NPI registered
- June 2013 — 13 yrs on file
- Profile last updated
- March 7, 2023
- Year of graduation
- 1988 — 38 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Illinois #036139567
- Medicaid
- IL #1639519309
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1639519309. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,820
Distinct HCPCS
5
Medicare allowed
$234,922
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 1,225 | 445 | $123 | |
99239 |
Hospital discharge day management, more than 30 minutes | 277 | 268 | $119 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 248 | 242 | $180 | |
99238 |
Hospital discharge day management, 30 minutes or less | 59 | 58 | $82 | |
99236 |
Initial hospital care with same-day admission and discharge with high level of medical decision making, per day, if using time, at least 85 minutes | 11 | 11 | $215 |
In context: peer comparison
Among 13 peers in this city , average services per provider: 376. This provider delivers 4.8× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
264
Patients
239
Total drug cost
$1,680
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cefdinir | Generic | 38 | 37 | $409 |
| Prednisone | Generic | 28 | 28 | $106 |
| Pantoprazole Sodium | Generic | 27 | 26 | $240 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 20 | 20 | $177 |
| Furosemide | Generic | 20 | 19 | $56 |
| Clopidogrel (Clopidogrel Bisulfate) | Brand | 19 | 13 | $112 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 19 | 19 | $68 |
| Tramadol Hcl | Generic | 19 | 19 | $50 |
| Amlodipine Besylate | Generic | 18 | 16 | $161 |
| Metoprolol Succinate | Generic | 18 | 17 | $106 |
Hospital affiliations
Frequently asked questions
What is Dr. Mazin Fattouhi's medical specialty?
Dr. Mazin Fattouhi practices Internal Medicine Physician in Long Grove, IL.
Where does Dr. Mazin Fattouhi practice?
Dr. Mazin Fattouhi practices at 3880 Salem Lake Dr, Long Grove, IL 600475292. Office phone: 8477192220.
What is Dr. Mazin Fattouhi's NPI?
Dr. Mazin Fattouhi's National Provider Identifier (NPI) is 1639519309, issued by NPPES.
Does Dr. Mazin Fattouhi accept Medicare assignment?
Yes. Dr. Mazin Fattouhi accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mazin Fattouhi commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.