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 Waterbury Internal Medicine Physician, 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 |
Hospital affiliations
Frequently asked questions
What is Dr. Thomas Gniadek's medical specialty?
Dr. Thomas Gniadek practices Internal Medicine Physician in Waterbury, CT.
Where does Dr. Thomas Gniadek practice?
Dr. Thomas Gniadek practices at 1389 W Main St, Waterbury, CT 06708. Office phone: 2037557711.
What is Dr. Thomas Gniadek's NPI?
Dr. Thomas Gniadek's National Provider Identifier (NPI) is 1972591931, issued by NPPES.
Does Dr. Thomas Gniadek accept Medicare assignment?
Yes. Dr. Thomas Gniadek accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thomas Gniadek commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report (HCPCS 95251). Source: CMS Medicare Physician & Other Practitioners file.