Dr. Mark A. Gromski, MD
Gastroenterology (Gastroenterology Physician)
- Medicare participating
At a glance
- Years since graduation
- 15
- In the NPI registry since
- 2011
- Medicare patients seen, 2024
- 203
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. What an NPI is
Education and training
- 2011Registered with an NPI (national billing number; not a license date)
Medicare’s Care Compare data doesn’t list this clinician’s medical school. Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Gastroenterology Physician primary
IN license 01073629A -
Internal Medicine Physician
MA license 248129
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Indiana University Health Indianapolis, IN
Medical groups
- Iu Health Medical Group LLC (4,462 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 203
- Services billed
- 497
- Patients’ average age
- 71
| Service | Times | Patients |
|---|---|---|
| Review by radiologist of image from tube placement into bile duct using an endoscope | 47 | 38 |
| Removal of stone or debris from bile or pancreatic duct using a flexible endoscope | 42 | 36 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 40 | 40 |
| Ultrasound guided needle aspiration or biopsy of esophagus using a flexible endoscope | 39 | 39 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 36 | 20 |
| Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope through mouth | 31 | 30 |
| Insertion of stent into pancreatic or bile duct using a flexible endoscope | 29 | 26 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 23 | 23 |
| Replacement of stent in pancreatic or bile duct using a flexible endoscope | 22 | 12 |
| Biopsy of gallbladder, pancreatic, liver, and bile ducts using a flexible endoscope | 19 | 17 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Pantoprazole Sodium Other prescribers in Indianapolis, IN | 29 |
| Omeprazole Other prescribers in Indianapolis, IN | 23 |
| Amoxicillin-Clavulanate Potass (amoxicillin/potassium clav) Other prescribers in Indianapolis, IN | 22 |
| Dicyclomine Hcl Other prescribers in Indianapolis, IN | 19 |
| Ciprofloxacin Hcl Other prescribers in Indianapolis, IN | 14 |
| Creon (lipase/protease/amylase) Other prescribers in Indianapolis, IN | 12 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 5 companies reported 51 payments worth $41,702 in total to this clinician.
| Boston Scientific Corporation | $20,748 |
|---|---|
| Wilson Cook Medical Incorporated | $19,272 |
| Cook Medical LLC | $1,492 |
| Conmed Corporation | $131 |
| Omega Medical Imaging, LLC | $60.64 |
| Compensation for services other than consulting (speaking, faculty) | $36,210 |
|---|---|
| Travel and Lodging | $3,179 |
| Food and Beverage | $1,348 |
| Consulting Fee | $965 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Boston Scientific Corporation Sep 25, 2025 | Compensation for services other than consulting (speaking, faculty) General - Therapies · General - Therapies_ENDO | $8,500 |
| Wilson Cook Medical Incorporated Sep 29, 2025 | Compensation for services other than consulting (speaking, faculty) | $6,045 |
| Wilson Cook Medical Incorporated Oct 27, 2025 | Compensation for services other than consulting (speaking, faculty) | $6,045 |
| Wilson Cook Medical Incorporated Jun 25, 2025 | Compensation for services other than consulting (speaking, faculty) FUSION · Endoscopy | $6,045 |
| Boston Scientific Corporation Sep 25, 2025 | Compensation for services other than consulting (speaking, faculty) General - Therapies · General - Therapies_ENDO | $3,000 |
| Boston Scientific Corporation Apr 3, 2025 | Compensation for services other than consulting (speaking, faculty) Spyglass · Spyglass DS_ENDO | $1,575 |
| Boston Scientific Corporation Sep 25, 2025 | Compensation for services other than consulting (speaking, faculty) General - Therapies · General - Therapies_ENDO | $1,500 |
| Boston Scientific Corporation Jul 3, 2025 | Compensation for services other than consulting (speaking, faculty) Habib EndoHPB · Habib_ENDO | $1,000 |
| Cook Medical LLC Sep 12, 2025 | Travel and Lodging FUSION · Endoscopy · travel to Boston, MA | $626 |
| Cook Medical LLC Jul 26, 2025 | Travel and Lodging FUSION · Endoscopy · travel to Boston, MA | $597 |
All 27 payments other than meals, newest first
| Company | What it was for | Amount |
|---|---|---|
| Boston Scientific Corporation Dec 5, 2025 | Travel and Lodging EXALT Model D · EXALT Model D_ENDO · travel to Worcester, MA · in-kind | $201 |
| Wilson Cook Medical Incorporated Oct 29, 2025 | Travel and Lodging FUSION · Endoscopy · travel to Bolton, MA | $159 |
| Wilson Cook Medical Incorporated Oct 27, 2025 | Compensation for services other than consulting (speaking, faculty) | $6,045 |
| Wilson Cook Medical Incorporated Oct 8, 2025 | Travel and Lodging FUSION · Endoscopy · travel to Bolton, MA | $118 |
| Wilson Cook Medical Incorporated Sep 29, 2025 | Compensation for services other than consulting (speaking, faculty) | $6,045 |
| Boston Scientific Corporation Sep 25, 2025 | Compensation for services other than consulting (speaking, faculty) General - Therapies · General - Therapies_ENDO | $8,500 |
| Boston Scientific Corporation Sep 25, 2025 | Compensation for services other than consulting (speaking, faculty) General - Therapies · General - Therapies_ENDO | $3,000 |
| Boston Scientific Corporation Sep 25, 2025 | Compensation for services other than consulting (speaking, faculty) General - Therapies · General - Therapies_ENDO | $1,500 |
| Boston Scientific Corporation Sep 25, 2025 | Compensation for services other than consulting (speaking, faculty) General - Therapies · General - Therapies_ENDO | $500 |
| Boston Scientific Corporation Sep 25, 2025 | Travel and Lodging General - Therapies · General - Therapies_ENDO · travel to Downers Grove, IL | $301 |
| Cook Medical LLC Sep 12, 2025 | Travel and Lodging FUSION · Endoscopy · travel to Boston, MA | $626 |
| Boston Scientific Corporation Aug 16, 2025 | Travel and Lodging SpyGlass · SpyGlass_ENDO · travel to Chicago, IL · in-kind | $353 |
| Boston Scientific Corporation Aug 15, 2025 | Travel and Lodging SpyGlass · SpyGlass_ENDO · travel to Chicago, IL · in-kind | $183 |
| Boston Scientific Corporation Aug 15, 2025 | Travel and Lodging SpyGlass · SpyGlass_ENDO · travel to Chicago, IL · in-kind | $136 |
| Boston Scientific Corporation Aug 14, 2025 | Travel and Lodging SpyGlass · SpyGlass_ENDO · travel to Chicago, IL · in-kind | $183 |
| Boston Scientific Corporation Aug 14, 2025 | Travel and Lodging SpyGlass · SpyGlass_ENDO · travel to Chicago, IL · in-kind | $22.94 |
| Boston Scientific Corporation Aug 7, 2025 | Consulting Fee General - Therapies · General - Therapies_ENDO | $500 |
| Cook Medical LLC Jul 26, 2025 | Travel and Lodging FUSION · Endoscopy · travel to Boston, MA | $597 |
| Boston Scientific Corporation Jul 3, 2025 | Compensation for services other than consulting (speaking, faculty) Habib EndoHPB · Habib_ENDO | $1,000 |
| Boston Scientific Corporation Jul 3, 2025 | Compensation for services other than consulting (speaking, faculty) Habib EndoHPB · Habib_ENDO | $500 |
| Boston Scientific Corporation Jun 26, 2025 | Compensation for services other than consulting (speaking, faculty) EXALT Model D · EXALT Model D_ENDO | $500 |
| Boston Scientific Corporation Jun 26, 2025 | Compensation for services other than consulting (speaking, faculty) EXALT Model D · EXALT Model D_ENDO | $500 |
| Wilson Cook Medical Incorporated Jun 25, 2025 | Compensation for services other than consulting (speaking, faculty) FUSION · Endoscopy | $6,045 |
| Wilson Cook Medical Incorporated Jun 25, 2025 | Travel and Lodging travel to Downers Grove, IL | $298 |
| Wilson Cook Medical Incorporated May 13, 2025 | Consulting Fee D.A.S.H. · Endoscopy | $465 |
| Boston Scientific Corporation Apr 3, 2025 | Compensation for services other than consulting (speaking, faculty) Spyglass · Spyglass DS_ENDO | $1,575 |
| Boston Scientific Corporation Apr 3, 2025 | Compensation for services other than consulting (speaking, faculty) Spyglass · Spyglass DS_ENDO | $500 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.
Industry-funded research
Named as a principal investigator on 1 industry-funded study in 2025, from 1 company. The companies reported $10,500 in research payments for these studies, mostly to the institutions running them.
- SpotEx PMCF
Laborie Medical Technologies Corp.
From CMS Open Payments research payments, where companies name up to five principal investigators per payment. Research payments usually go to hospitals, universities and research sites, not to the investigator personally. A payment is not evidence of wrongdoing.