Doctor profile · Federal record

Dr. Uday Shankar, M.D.

Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · Waterbury, CT

  • NPI 1578849519
  • Accepts Medicare
  • 22 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
3801 E Main St Fl 2
Waterbury, CT 06705
(203) 709-4001
Additional location
20900 Biscayne Blvd, Division of Hospital Medicine
Aventura, FL 331801407
(201) 706-1164

Credentials & registration

NPPES · NUCC
NPI registered
October 2011 — 15 yrs on file
Profile last updated
October 28, 2021
Year of graduation
2004 — 22 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State licenses (2)
Connecticut #62492 · New York #003922

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1578849519. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
388
Distinct HCPCS
10
Medicare allowed
$52,211
HCPCS Description Services Patients Avg allowed
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 54 53 $180
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 53 52 $94
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 52 37 $82
99214 Established patient office or other outpatient visit, 30-39 minutes 39 34 $132
99213 Established patient office or other outpatient visit, 20-29 minutes 36 35 $93
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 32 32 $240
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 27 26 $241
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 25 25 $80
99204 New patient office or other outpatient visit, 45-59 minutes 20 20 $175
74328 Review by radiologist of image from tube placement into bile duct using an endoscope 14 11 $24

In context: peer comparison

Among 6 peers in Waterbury Gastroenterology Physician, average services per provider: 50. This provider delivers 7.8× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,297
Transactions
24
Manufacturers
7
Payer (manufacturer) Industry Txns Amount
Boston Scientific Corporation 11 $943.05
Phathom Pharmaceuticals, INC. 6 $194.39
Takeda Pharmaceuticals U.S.A., INC. 3 $82.74
Intercept Pharmaceuticals, INC. 1 $22.31
Celltrion USA INC. 1 $19.99
Ardelyx, INC. 1 $19.62
Pfizer INC. 1 $14.81

By nature of payment

Travel and Lodging
$667
Food and Beverage
$610
Education
$20

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
432
Patients
105
Total drug cost
$84,396
Drug Type Claims Patients Total cost
Pantoprazole Sodium Generic 201 75 $2,572
Omeprazole Generic 50 13 $961
Mesalamine Generic 41 0 $23,751
Linzess (Linaclotide) Brand 32 0 $23,855
Famotidine Generic 24 0 $412
Dicyclomine Hcl Generic 20 0 $812
Gavilyte-C (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) Brand 17 17 $297
Sucralfate Generic 13 0 $296
Lansoprazole Generic 12 0 $437
Creon (Lipase/Protease/Amylase) Brand 11 0 $30,511

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Uday Shankar's medical specialty?
Dr. Uday Shankar practices Gastroenterology Physician in Waterbury, CT.
Where does Dr. Uday Shankar practice?
Dr. Uday Shankar practices at 3801 E Main St Fl 2, Waterbury, CT 06705. Office phone: 2037094001.
What is Dr. Uday Shankar's NPI?
Dr. Uday Shankar's National Provider Identifier (NPI) is 1578849519, issued by NPPES.
Does Dr. Uday Shankar accept Medicare assignment?
Yes. Dr. Uday Shankar accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Uday Shankar commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with moderate level of medical decision making (HCPCS 99223); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.