Doctor profile · Federal record

Dr. Thomas Rockoff, MD

Gastroenterology Physician (CMS: Gastroenterology) · Prospect, CT

  • NPI 1356313944
  • Accepts Medicare
  • MIPS 79.7 / 100 · 2023
  • 31 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
166 Waterbury RD Ste 104
Prospect, CT 067121246
(203) 756-6722
fax (203) 756-2448
Mailing address
1312 West Main Street, Suite 101
Waterbury, CT 06708

Credentials & registration

NPPES · NUCC
NPI registered
February 2006 — 20 yrs on file
Profile last updated
April 27, 2018
Year of graduation
1995 — 31 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Connecticut #039233
Medicaid
CT #001392331

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1356313944. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
618
Distinct HCPCS
10
Medicare allowed
$91,048
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 89 82 $94
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 80 76 $101
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 76 76 $262
99214 Established patient office or other outpatient visit, 30-39 minutes 70 62 $133
99203 New patient office or other outpatient visit, 30-44 minutes 64 64 $118
99204 New patient office or other outpatient visit, 45-59 minutes 51 51 $175
45378 Diagnostic exam of large bowel using a flexible endoscope 45 45 $187
99221 Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 45 44 $86
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk 35 35 $190
45380 Biopsy of large bowel using a flexible endoscope 31 31 $189

In context: peer comparison

Among 2 peers in this city , average services per provider: 43. This provider delivers 14× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$3,175
Transactions
143
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
ABBVIE INC. 39 $796.06
Takeda Pharmaceuticals U.S.A., Inc. 16 $427.94
PFIZER INC. 15 $274.65
Gilead Sciences, Inc. 11 $227.95
Lilly USA, LLC 13 $215.67
Phathom Pharmaceuticals, Inc. 9 $166.50
IRONWOOD PHARMACEUTICALS, INC 7 $165.97
Celgene Corporation 8 $136.28
Janssen Biotech, Inc. 5 $116.88
GENZYME CORPORATION 4 $107.69
Celltrion USA Inc. 4 $77.63
Merck Sharp & Dohme LLC 3 $69.34
Ardelyx, Inc. 3 $66.53
Intercept Pharmaceuticals, Inc. 3 $59.26
Salix Pharmaceuticals, a division of Bausch Health US, LLC 3 $45.89

By nature of payment

Food and Beverage
$3,116
Education
$59

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
953
Patients
283
Total drug cost
$149,912
Drug Type Claims Patients Total cost
Pantoprazole Sodium Generic 255 75 $4,095
Omeprazole Generic 214 78 $3,645
Dicyclomine Hcl Generic 114 46 $2,801
Linzess (Linaclotide) Brand 73 21 $67,741
Esomeprazole Magnesium Generic 71 24 $3,741
Diphenoxylate-Atropine (Diphenoxylate Hcl/Atropine) Brand 46 13 $1,519
Metoclopramide Hcl Generic 33 12 $185
Mesalamine Generic 29 0 $18,094
Dexlansoprazole Dr (Dexlansoprazole) Brand 26 0 $17,416
Movantik (Naloxegol Oxalate) Brand 18 0 $14,640

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Thomas Rockoff's medical specialty?
Dr. Thomas Rockoff practices Gastroenterology Physician in Prospect, CT.
Where does Dr. Thomas Rockoff practice?
Dr. Thomas Rockoff practices at 166 Waterbury RD Ste 104, Prospect, CT 067121246. Office phone: 2037566722.
What is Dr. Thomas Rockoff's NPI?
Dr. Thomas Rockoff's National Provider Identifier (NPI) is 1356313944, issued by NPPES.
Does Dr. Thomas Rockoff accept Medicare assignment?
Yes. Dr. Thomas Rockoff accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thomas Rockoff commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385). Source: CMS Medicare Physician & Other Practitioners file.