Doctor profile · Federal record

Dr. Thomas Jung, MD

Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · New Haven, CT

  • NPI 1285875484
  • Accepts Medicare
  • MIPS 62.4 / 100 · 2023
  • 23 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
129 York St, 3H
New Haven, CT 065115608
(203) 785-4138
Mailing address
333 Cedar Street, Lmp 1080
New Haven, CT 06520

Credentials & registration

NPPES · NUCC
NPI registered
March 2009 — 17 yrs on file
Profile last updated
November 3, 2016
Year of graduation
2003 — 23 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Connecticut #047422

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1285875484. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
426
Distinct HCPCS
9
Medicare allowed
$61,814
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 207 123 $134
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 62 62 $97
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 42 41 $262
45380 Biopsy of large bowel using a flexible endoscope 33 33 $132
99204 New patient office or other outpatient visit, 45-59 minutes 32 32 $167
99203 New patient office or other outpatient visit, 30-44 minutes 14 14 $119
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 14 14 $180
45378 Diagnostic exam of large bowel using a flexible endoscope 11 11 $165
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 11 11 $123

In context: peer comparison

Among 19 peers in this city , average services per provider: 110. This provider delivers 3.9× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$2,324
Transactions
108
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
ABBVIE INC. 24 $441.49
Phathom Pharmaceuticals, Inc. 10 $273.33
Takeda Pharmaceuticals U.S.A., Inc. 9 $257.62
IRONWOOD PHARMACEUTICALS, INC 11 $243.53
Ardelyx, Inc. 9 $194.67
Gilead Sciences, Inc. 11 $176.80
Celgene Corporation 12 $151.07
Lilly USA, LLC 6 $107.08
Madrigal Pharmaceuticals 2 $58.57
Amgen Inc. 2 $58.08
Janssen Biotech, Inc. 3 $57.84
Celltrion USA Inc. 3 $49.17
Intercept Pharmaceuticals, Inc. 2 $48.64
PFIZER INC. 3 $44.60
QOL Medical, LLC 1 $35.49

By nature of payment

Food and Beverage
$2,275
Education
$49

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,347
Patients
496
Total drug cost
$275,362
Drug Type Claims Patients Total cost
Pantoprazole Sodium Generic 461 183 $8,008
Linzess (Linaclotide) Brand 172 51 $148,392
Omeprazole Generic 166 51 $2,299
Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,mag Sulfates) Brand 133 125 $10,122
Famotidine Generic 82 30 $1,450
Esomeprazole Magnesium Generic 58 19 $6,983
Dicyclomine Hcl Generic 45 12 $1,064
Lactulose Generic 41 0 $285
Cholestyramine (Cholestyramine (With Sugar)) Brand 37 14 $5,165
Creon (Lipase/Protease/Amylase) Brand 33 0 $54,745

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Thomas Jung's medical specialty?
Dr. Thomas Jung practices Gastroenterology Physician in New Haven, CT.
Where does Dr. Thomas Jung practice?
Dr. Thomas Jung practices at 129 York St, New Haven, CT 065115608. Office phone: 2037854138.
What is Dr. Thomas Jung's NPI?
Dr. Thomas Jung's National Provider Identifier (NPI) is 1285875484, issued by NPPES.
Does Dr. Thomas Jung accept Medicare assignment?
Yes. Dr. Thomas Jung accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thomas Jung commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); 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.