Doctor profile · Federal record
Dr. Mireille El Hayek, M.D.
Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · Endocrinology, Diabetes & Metabolism Physician · Saint Louis, MO
- NPI 1912139940
- Accepts Medicare
- 19 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2315 Dougherty Ferry Road, Suite 109B
Saint Louis, MO 631223383
(314) 965-9133
fax (314) 984-2793
Credentials & registration
- NPI registered
- August 2009 — 17 yrs on file
- Profile last updated
- October 23, 2023
- Year of graduation
- 2007 — 19 yrs since
- Specialty taxonomy
- 207RE0101X — NUCC code
- State licenses (2)
- Illinois #036142174 · Missouri #2015023837
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1912139940. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
327
Distinct HCPCS
6
Medicare allowed
$26,364
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 99 | 62 | $126 | |
83036 |
Hemoglobin a1c level | 85 | 49 | $10 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 65 | 51 | $89 | |
95251 |
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | 37 | 17 | $34 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 29 | 29 | $164 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 12 | 12 | $110 |
In context: peer comparison
Among 33 peers in Saint Louis Endocrinology, Diabetes & Metabolism Physician, average services per provider: 421. This provider delivers 0.8× the peer median.Open Payments
Industry payments received
All-time total
$333
Transactions
18
Manufacturers
10
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Novo Nordisk INC | 6 | $107.85 | |
| Alexion Pharmaceuticals, INC. | 2 | $49.55 | |
| Insulet Corporation | 1 | $37.13 | |
| Nevro Corp. | 2 | $32.09 | |
| Kyowa Kirin, INC. | 1 | $27.00 | |
| Dexcom, INC. | 1 | $19.17 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 1 | $18.53 | |
| Lilly USA, LLC | 1 | $15.96 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 1 | $14.98 | |
| Beta Bionics, INC. | 2 | $10.90 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
985
Patients
252
Total drug cost
$466,102
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 174 | 48 | $2,273 |
| Farxiga (Dapagliflozin Propanediol) | Brand | 106 | 23 | $100,478 |
| Metformin Hcl | Generic | 99 | 26 | $804 |
| Jardiance (Empagliflozin) | Brand | 83 | 14 | $64,969 |
| Metformin Hcl ER (Metformin Hcl) | Brand | 81 | 24 | $1,113 |
| Ozempic (Semaglutide) | Brand | 76 | 25 | $117,060 |
| Trulicity (Dulaglutide) | Brand | 50 | 14 | $59,793 |
| Rosuvastatin Calcium | Generic | 48 | 16 | $611 |
| Glimepiride | Generic | 44 | 13 | $630 |
| Januvia (Sitagliptin Phosphate) | Brand | 43 | 11 | $38,902 |
Frequently asked questions
What is Dr. Mireille El Hayek's medical specialty?
Dr. Mireille El Hayek practices Endocrinology, Diabetes & Metabolism Physician in Saint Louis, MO.
Where does Dr. Mireille El Hayek practice?
Dr. Mireille El Hayek practices at 2315 Dougherty Ferry Road, Saint Louis, MO 631223383. Office phone: 3149659133.
What is Dr. Mireille El Hayek's NPI?
Dr. Mireille El Hayek's National Provider Identifier (NPI) is 1912139940, issued by NPPES.
Does Dr. Mireille El Hayek accept Medicare assignment?
Yes. Dr. Mireille El Hayek accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mireille El Hayek commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Hemoglobin a1c level (HCPCS 83036); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.