Doctor profile · Federal record
Dr. THOMAS GNIADEK, M.D.
Internal Medicine Physician (CMS: ENDOCRINOLOGY) · Endocrinology, Diabetes & Metabolism Physician · WATERBURY, CT
- NPI 1972591931
- Accepts Medicare
- 50 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1389 W MAIN ST, SUITE 224
WATERBURY, CT 06708
(203) 755-7711
fax (203) 755-8996
Credentials & registration
- NPI registered
- October 2005 — 21 yrs on file
- Profile last updated
- November 9, 2021
- Year of graduation
- 1976 — 50 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Connecticut #19477
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1972591931. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,165
Distinct HCPCS
8
Medicare allowed
$114,068
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 646 | 287 | $134 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 177 | 130 | $95 | |
95251 |
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | 87 | 44 | $35 | |
G0008 |
Administration of influenza virus vaccine | 61 | 61 | $33 | |
96372 |
Injection of drug or substance under skin or into muscle | 60 | 12 | $15 | |
82962 |
Blood glucose (sugar) test performed by hand-held instrument | 55 | 45 | $3 | |
90694 |
Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage | 52 | 52 | $76 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 27 | 26 | $15 |
In context: peer comparison
Among 34 peers in this city , average services per provider: 87. This provider delivers 13× the peer median.Open Payments
Industry payments received
All-time total
$799
Transactions
42
Manufacturers
10
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Boehringer Ingelheim Pharmaceuticals, Inc. | 15 | $304.73 | |
| Abbott Laboratories | 8 | $165.04 | |
| Xeris Pharmaceuticals, Inc. | 10 | $144.88 | |
| Amgen Inc. | 2 | $46.11 | |
| Dexcom, Inc. | 2 | $43.99 | |
| Lilly USA, LLC | 1 | $25.18 | |
| ABBVIE INC. | 1 | $23.84 | |
| Antares Pharma, Inc. | 1 | $16.36 | |
| Medtronic, Inc. | 1 | $14.85 | |
| Novo Nordisk Inc | 1 | $13.70 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
4,153
Patients
1,111
Total drug cost
$519,173
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 891 | 234 | $17,516 |
| Rosuvastatin Calcium | Generic | 412 | 110 | $10,144 |
| Lisinopril | Generic | 313 | 84 | $3,430 |
| Amlodipine Besylate | Generic | 299 | 80 | $2,876 |
| Mounjaro (Tirzepatide) | Brand | 291 | 54 | $417,672 |
| Furosemide | Generic | 262 | 70 | $2,232 |
| Metformin Hcl | Generic | 226 | 64 | $2,471 |
| Metoprolol Succinate | Generic | 222 | 64 | $5,580 |
| Synthroid (Levothyroxine Sodium) | Brand | 215 | 49 | $22,199 |
| Losartan Potassium | Generic | 200 | 52 | $3,278 |