Jaroslav Zivny, M.D.
NPI 1144203076 · Gastroenterology Physician · Worcester, MA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jaroslav Zivny, M.D. is a Gastroenterology Physician provider in Worcester, MA (NPI 1144203076).
Provider details
- NPI number
- 1144203076
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 209607 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
722 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 93 | $49 |
| Review By Radiologist of Image From Tube Placement Into Bile Duct Using an Endoscope74328 | 87 | $23 |
| Removal of Stone Or Debris From Bile Or Pancreatic Duct Using a Flexible Endoscope43264 | 61 | $104 |
| Insertion of Stent Into Pancreatic Or Bile Duct Using a Flexible Endoscope43274 | 50 | $376 |
| Ultrasound Exam of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope Through Mouth43237 | 48 | $156 |
| Ultrasound Guided Needle Aspiration Or Biopsy of Esophagus Using a Flexible Endoscope43238 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 84 | 31 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C | 78 | 73 |
| Sucralfate | 50 | 23 |
| Pantoprazole Sodium | 32 | 13 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 31 | 31 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 30 | 29 |
| Famotidine | 11 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$709 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (3)
- 157 Union StMarlborough, MA 01752-1228Phone: (508) 334-3068Fax: (774) 443-7028
- 119 Belmont StWorcester, MA 01605-2903Phone: (508) 334-3068Fax: (508) 856-3981
- 21 Eastern AveWorcester, MA 01605-3094Phone: (508) 334-3068Fax: (508) 334-8437
Registry dates
- Enumerated
- 2005-11-23
- Last updated
- 2020-10-28
- Certified
- 2020-10-28
Frequently asked questions
- What is Jaroslav Zivny's NPI number?
- Jaroslav Zivny's National Provider Identifier (NPI) is 1144203076, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jaroslav Zivny's specialty?
- Jaroslav Zivny is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Jaroslav Zivny located?
- Jaroslav Zivny's practice location on file with NPPES is 55 Lake Ave N, Worcester, MA 01655-0002.
- What is Jaroslav Zivny's phone number?
- The practice phone number listed in the NPPES registry for Jaroslav Zivny is (508) 856-8399.
- Does Jaroslav Zivny accept Medicare?
- Jaroslav Zivny is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jaroslav Zivny's NPI active?
- Yes — Jaroslav Zivny's NPI (1144203076) is active in the NPPES registry as of the last update on 2020-10-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.