Doctor profile · Federal record
Dr. Jeffrey Dreznick, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · Ansonia, CT
- NPI 1902895436
- Accepts Medicare
- MIPS 90.8 / 100 · 2023
- 42 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
22 Westfield Ave
Ansonia, CT 064011158
(203) 736-9919
fax (203) 735-2055 - Mailing address
-
67 Maple Ave
Derby, CT 064181328
Credentials & registration
- NPI registered
- October 2005 — 21 yrs on file
- Profile last updated
- February 19, 2021
- Year of graduation
- 1984 — 42 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Connecticut #028004
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1902895436. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
159
Distinct HCPCS
7
Medicare allowed
$25,869
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
45380 |
Biopsy of large bowel using a flexible endoscope | 44 | 44 | $183 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 33 | 32 | $190 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 30 | 30 | $97 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 18 | 18 | $177 | |
45378 |
Diagnostic exam of large bowel using a flexible endoscope | 12 | 12 | $164 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 11 | 11 | $136 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 11 | 11 | $181 |
In context: peer comparison
Among 2 peers in Ansonia Gastroenterology Physician, average services per provider: 22. This provider delivers 7.2× the peer median.Open Payments
Industry payments received
All-time total
$504
Transactions
21
Manufacturers
9
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Janssen Biotech, INC. | 4 | $99.31 | |
| Qol Medical, LLC | 3 | $94.57 | |
| Takeda Pharmaceuticals U.S.A., INC. | 3 | $74.56 | |
| Abbvie INC. | 4 | $70.84 | |
| Ardelyx, INC. | 2 | $49.34 | |
| Phathom Pharmaceuticals, INC. | 2 | $45.23 | |
| Intercept Pharmaceuticals, INC. | 1 | $24.82 | |
| Celgene Corporation | 1 | $23.68 | |
| Pfizer INC. | 1 | $21.96 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,076
Patients
456
Total drug cost
$236,543
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Pantoprazole Sodium | Generic | 241 | 70 | $3,503 |
| Famotidine | Generic | 238 | 77 | $4,890 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) | Brand | 130 | 129 | $10,486 |
| Omeprazole | Generic | 86 | 32 | $1,366 |
| Mesalamine | Generic | 60 | 14 | $37,038 |
| Esomeprazole Magnesium | Generic | 50 | 12 | $4,751 |
| Ondansetron Hcl | Generic | 50 | 41 | $207 |
| Dicyclomine Hcl | Generic | 42 | 11 | $908 |
| Gavilyte-C (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 37 | 36 | $644 |
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 36 | 34 | $509 |
Frequently asked questions
What is Dr. Jeffrey Dreznick's medical specialty?
Dr. Jeffrey Dreznick practices Gastroenterology Physician in Ansonia, CT.
Where does Dr. Jeffrey Dreznick practice?
Dr. Jeffrey Dreznick practices at 22 Westfield Ave, Ansonia, CT 064011158. Office phone: 2037369919.
What is Dr. Jeffrey Dreznick's NPI?
Dr. Jeffrey Dreznick's National Provider Identifier (NPI) is 1902895436, issued by NPPES.
Does Dr. Jeffrey Dreznick accept Medicare assignment?
Yes. Dr. Jeffrey Dreznick accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jeffrey Dreznick commonly perform?
Top Medicare-reported procedures in 2023: Biopsy of large bowel using a flexible endoscope (HCPCS 45380); Established patient office or other outpatient visit (HCPCS 99215); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239). Source: CMS Medicare Physician & Other Practitioners file.