Doctor profile · Federal record

Dr. Ujjwal Kumar, M.D.

Gastroenterology Physician (CMS: Gastroenterology) · Cedar Rapids, IA

  • NPI 1235570805
  • Accepts Medicare
  • 19 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
Mercy Gastroenterology Clinic, 788 8Th Avenue Se
Cedar Rapids, IA 52401
(319) 369-4542
fax (319) 369-4543

Credentials & registration

NPPES · NUCC
NPI registered
July 2013 — 13 yrs on file
Profile last updated
December 8, 2020
Year of graduation
2007 — 19 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Iowa #MD-45784

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1235570805. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
642
Distinct HCPCS
10
Medicare allowed
$93,726
HCPCS Description Services Patients Avg allowed
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 172 165 $205
99214 Established patient office or other outpatient visit, 30-39 minutes 115 74 $120
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 83 78 $81
45380 Biopsy of large bowel using a flexible endoscope 67 65 $48
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 38 37 $95
45390 Removal of large bowel tissue using a flexible endoscope 34 31 $303
43264 Removal of stone or debris from bile or pancreatic duct using a flexible endoscope 24 20 $138
43274 Insertion of stent into pancreatic or bile duct using a flexible endoscope 24 18 $358
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 24 24 $123
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 19 14 $75

In context: peer comparison

Among 3 peers in Cedar Rapids Gastroenterology Physician, average services per provider: 51. This provider delivers 13× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,325
Transactions
27
Manufacturers
10
Payer (manufacturer) Industry Txns Amount
Boston Scientific Corporation 3 $808.49
Abbvie INC. 12 $214.47
Janssen Biotech, INC. 3 $141.11
Celgene Corporation 3 $46.84
Merck Sharp & Dohme LLC 1 $22.63
Salix Pharmaceuticals, A Division of Bausch Health US, LLC 1 $22.13
Madrigal Pharmaceuticals 1 $19.19
Ardelyx, INC. 1 $17.45
Pfizer INC. 1 $17.15
Lilly USA, LLC 1 $15.06

By nature of payment

Travel and Lodging
$778
Food and Beverage
$446
Education
$100

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
700
Patients
374
Total drug cost
$117,097
Drug Type Claims Patients Total cost
Pantoprazole Sodium Generic 190 72 $2,907
Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) Brand 163 154 $13,598
Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) Brand 88 84 $1,740
Omeprazole Generic 49 18 $977
Linzess (Linaclotide) Brand 36 0 $29,635
Suprep (Sodium, Potassium,Mag Sulfates) Brand 31 28 $3,661
Ursodiol Generic 23 0 $6,626
Lactulose Generic 20 0 $574
Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) Brand 19 18 $713
Spironolactone Generic 18 0 $860

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Ujjwal Kumar's medical specialty?
Dr. Ujjwal Kumar practices Gastroenterology Physician in Cedar Rapids, IA.
Where does Dr. Ujjwal Kumar practice?
Dr. Ujjwal Kumar practices at Mercy Gastroenterology Clinic, Cedar Rapids, IA 52401. Office phone: 3193694542.
What is Dr. Ujjwal Kumar's NPI?
Dr. Ujjwal Kumar's National Provider Identifier (NPI) is 1235570805, issued by NPPES.
Does Dr. Ujjwal Kumar accept Medicare assignment?
Yes. Dr. Ujjwal Kumar accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ujjwal Kumar commonly perform?
Top Medicare-reported procedures in 2023: Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Established patient office or other outpatient visit (HCPCS 99214); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239). Source: CMS Medicare Physician & Other Practitioners file.