Expertise in
30
conditions

Dr. Robert M. Siwiec

Gastroenterology
IU Health Physicians Digestive & Liver Disorders
10300 N Illinois St Ste 1100, 
Carmel, IN 
Accepting New Patients
Offers Telehealth
Expertise in
30
conditions
IU Health Physicians Digestive & Liver Disorders
10300 N Illinois St Ste 1100, 
Carmel, IN 

Overview

Robert Siwiec is a Gastroenterologist practicing medicine in Carmel, Indiana.

Dr. Siwiec is highly rated in 30 conditions, according to our data. His clinical expertise encompasses Gastroparesis, Gastroesophageal Reflux Disease (GERD), Cyclic Vomiting Syndrome, Gastrectomy, and Endoscopy.

He is actively involved in clinical research, co-authoring 25 peer reviewed articles and participating in 3 clinical trials. Dr. Siwiec is currently accepting new patients.

Specialties

Gastroenterology

Licenses

Internal Medicine in IL

Hospital Affiliations

Indiana University Health
Indiana University Health North Hospital

Languages Spoken

English

Gender

Male

Insurance

Accepted insurance can change. Please verify directly with the provider.

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Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Anthem BCBS
  • EPO
  • HMO
  • POS
  • PPO
Blue Cross Blue Shield
  • EPO
  • HMO
  • POS
  • PPO
CareFirst
  • HMO
  • POS
  • PPO
CareSource
  • HMO
Cigna
  • EPO
  • HMO
  • PPO
Health Care Services Corporation
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
  • PPO
Highmark
  • EPO
  • HMO
  • PPO
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Independent Health
  • EPO
  • POS
  • PPO
Managed Health Services
  • EPO
  • MANAGED MEDICAID PLAN
  • OTHER COMMERCIAL
Managed Medicaid
  • OTHER MANAGED MEDICAID
MDwise
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • OTHER COMMERCIAL
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
Medicare
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE PART D
Meridian Choice
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
Spectrum Priority Health
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • OTHER COMMERCIAL
TeamCare
  • OTHER COMMERCIAL
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
Walgreens
  • MEDICARE DISCOUNT CARD
  • MEDICARE PDP
  • OTHER MEDICARE
Wellcare
  • EPO
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
View 16 Less Insurance Carriers -

Locations

IU Health Physicians Digestive & Liver Disorders
10300 N Illinois St Ste 1100, Carmel, IN 46290
Other Locations
Iu Health Physicians/Iu North Hospital
11725 Illinois St Ste 275, Carmel, IN 46032

Additional Areas of Focus

Dr. Siwiec has provided the following conditions as areas of focus. Please note that we may not have enough data to validate their experience in some of these conditions.

Non-Alcoholic Fatty Liver Disease
Nonalcoholic Steatohepatitis (NASH)

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.

3 Clinical Trials

Small Intestinal Bacterial Overgrowth: A Prospective Registry
Small Intestinal Bacterial Overgrowth: A Prospective Registry
Enrollment Status: Enrolling_by_invitation
Publish Date: June 16, 2026
A Randomized, Double-Blind, Placebo Controlled Study to Evaluate the Safety and Efficacy of Staccato Granisetron (AZ-010) for the Acute Treatment of Moderate to Severe Cyclic Vomiting Syndrome
A Randomized, Double-Blind, Placebo Controlled Study to Evaluate the Safety and Efficacy of Staccato Granisetron (AZ-010) for the Acute Treatment of Moderate to Severe Cyclic Vomiting Syndrome
Enrollment Status: Completed
Publish Date: June 11, 2025
Intervention Type: Combination product
Study Drug: AZ-010
Study Phase: Phase 2
A Phase 2, Multicenter, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Efficacy, Safety, Tolerability, and Pharmacodynamic Effect of AK002 in Patients With Eosinophilic Gastritis and/or Eosinophilic Gastroenteritis
A Phase 2, Multicenter, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Efficacy, Safety, Tolerability, and Pharmacodynamic Effect of AK002 in Patients With Eosinophilic Gastritis and/or Eosinophilic Gastroenteritis
Enrollment Status: Completed
Publish Date: January 19, 2024
Intervention Type: Other, Drug
Study Phase: Phase 2
View 2 Less Clinical Trials

25 Total Publications

A New International Scheme for the Classification and Management of Clinical Outcomes Post-gastric Peroral Endoscopic Myotomy.
A New International Scheme for the Classification and Management of Clinical Outcomes Post-gastric Peroral Endoscopic Myotomy.
Journal: Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association
Published: November 23, 2024
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Frequently Asked Questions about Dr. Robert M. Siwiec

How do I make an appointment with Dr. Robert M. Siwiec?

You can book an appointment with Dr. Robert M. Siwiec by calling their office at 317-944-0980. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.

Is Dr. Robert M. Siwiec a top-rated expert for Gastroparesis?

MediFind is an objective health platform that identifies experts based on real-world data. Dr. Robert M. Siwiec is classified as an Elite expert for Gastroparesis, meaning they are among the top experts in the country for this condition. This ranking is based on their volume of patients, published research, and peer connections.

What conditions does Dr. Robert M. Siwiec specialize in?

While Dr. Robert M. Siwiec is a Gastroenterology, they have specific expertise in Gastroparesis, Gastroesophageal Reflux Disease (GERD), and Cyclic Vomiting Syndrome. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Gastroenterology.

Does Dr. Robert M. Siwiec participate in research or clinical trials?

Yes. Dr. Robert M. Siwiec has published 25 articles and abstracts on conditions like Gastroparesis. You can view a list of Dr. Robert M. Siwiec's latest peer-reviewed publications and clinical trial participation on their profile to see if they are active in new treatments.

Does Dr. Robert M. Siwiec accept my insurance?

Dr. Robert M. Siwiec accepts most major insurance plans, including Aetna and Anthem BCBS. We recommend calling the office directly at 317-944-0980 to verify that your specific plan is currently accepted before your visit.

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

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