Doctor profile · Federal record

Dr. Jaroslav Zivny, M.D.

Gastroenterology Physician (CMS: Gastroenterology) · Worcester, MA

  • NPI 1144203076
  • Accepts Medicare
  • MIPS 89.0 / 100 · 2023
  • 31 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 4 locations .

NPPES Updated May 11, 2026
Primary practice
55 Lake Ave N, Department of Gastroenterology
Worcester, MA 016550002
(508) 856-8399
Additional location
119 Belmont St
Worcester, MA 016052903
(508) 334-3068
fax (508) 856-3981
Additional location
157 Union St
Marlborough, MA 017521228
(508) 334-3068
fax (774) 443-7028
Show 1 more location
Additional location
21 Eastern Ave
Worcester, MA 016053094
(508) 334-3068
fax (508) 334-8437
Mailing address
Po Box 415348
Boston, MA 022415348

Credentials & registration

NPPES · NUCC
NPI registered
November 2005 — 21 yrs on file
Profile last updated
October 28, 2020
Year of graduation
1995 — 31 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Massachusetts #209607
Medicaid
MA #110040645A

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1144203076. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
639
Distinct HCPCS
10
Medicare allowed
$107,744
HCPCS Description Services Patients Avg allowed
74328 Review by radiologist of image from tube placement into bile duct using an endoscope 98 70 $24
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 73 63 $51
43264 Removal of stone or debris from bile or pancreatic duct using a flexible endoscope 67 54 $107
43274 Insertion of stent into pancreatic or bile duct using a flexible endoscope 55 39 $377
43237 Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope through mouth 53 51 $160
43238 Ultrasound guided needle aspiration or biopsy of esophagus using a flexible endoscope 38 36 $215
43270 Destruction of polyp or growth of esophagus, stomach, and/or upper small bowel using a flexible endoscope 33 19 $219
43276 Replacement of stent in pancreatic or bile duct using a flexible endoscope 32 16 $393
74300 Review by radiologist of bile and/or pancreatic duct image during surgery 32 26 $13
43254 Removal of tissue lining of esophagus, stomach, and/or upper small bowel using a flexible endoscope 26 24 $267

In context: peer comparison

Among 20 peers in this city , average services per provider: 36. This provider delivers 18× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$709
Transactions
4
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Ovesco Endoscopy USA, Inc. 1 $662.63
ABBVIE INC. 3 $46.04

By nature of payment

Travel and Lodging
$663
Food and Beverage
$46

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
305
Patients
186
Total drug cost
$13,106
Drug Type Claims Patients Total cost
Gavilyte-C (Peg3350/Sod Sulf,bicarb,cl/Kcl) Brand 83 75 $1,604
Omeprazole Generic 70 22 $2,707
Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) Brand 52 50 $672
Pantoprazole Sodium Generic 41 14 $1,165
Sucralfate Generic 33 11 $5,887
Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,mag Sulfates) Brand 14 14 $1,021
Famotidine Generic 12 0 $51

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Jaroslav Zivny's medical specialty?
Dr. Jaroslav Zivny practices Gastroenterology Physician in Worcester, MA.
Where does Dr. Jaroslav Zivny practice?
Dr. Jaroslav Zivny practices at 55 Lake Ave N, Worcester, MA 016550002. Office phone: 5088568399.
What is Dr. Jaroslav Zivny's NPI?
Dr. Jaroslav Zivny's National Provider Identifier (NPI) is 1144203076, issued by NPPES.
Does Dr. Jaroslav Zivny accept Medicare assignment?
Yes. Dr. Jaroslav Zivny accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jaroslav Zivny commonly perform?
Top Medicare-reported procedures in 2023: Review by radiologist of image from tube placement into bile duct using an endoscope (HCPCS 74328); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239); Removal of stone or debris from bile or pancreatic duct using a flexible endoscope (HCPCS 43264). Source: CMS Medicare Physician & Other Practitioners file.