Expertise in
3
conditions

Dr. Robert I. Leventhal

Internal Medicine
Office
166 Waterbury Rd Ste 104, 
Prospect, CT 
40 Years of Experience
Expertise in
3
conditions
Office
166 Waterbury Rd Ste 104, 
Prospect, CT 

Overview

Robert Leventhal is a primary care provider, practicing in Internal Medicine in Prospect, Connecticut. He has been practicing medicine for over 40 years.

Dr. Leventhal is highly rated in 3 conditions, according to our data. His clinical expertise encompasses Irritable Bowel Syndrome (IBS), Diverticular Disease, Gastrointestinal Bleeding, Gastroesophageal Reflux Disease (GERD), and Endoscopy.

He is actively involved in clinical research, participating in 3 clinical trials.

Specialties

Internal Medicine

Licenses

Internal Medicine in CT

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
AvMed
  • HMO
  • POS
CareFirst
  • HMO
  • POS
  • PPO
Cigna
  • EPO
  • HMO
  • PPO
Highmark
  • EPO
  • HMO
  • PPO
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
Wellcare
  • EPO
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
View 5 Less Insurance Carriers -

Locations

Office
166 Waterbury Rd Ste 104, Prospect, CT 06712

Additional Areas of Focus

Dr. Leventhal 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

A Phase 3, Multicenter, Randomized, Double-Blind, Parallel-Arm, Placebo-Controlled Maintenance Study of Mirikizumab in Patients With Moderately to Severely Active Ulcerative Colitis (LUCENT 2)
A Phase 3, Multicenter, Randomized, Double-Blind, Parallel-Arm, Placebo-Controlled Maintenance Study of Mirikizumab in Patients With Moderately to Severely Active Ulcerative Colitis (LUCENT 2)
Enrollment Status: Completed
Publish Date: May 13, 2026
Intervention Type: Drug
Study Drug: Mirikizumab
Study Phase: Phase 3
A Phase 3, Multicenter, Randomized, Double-Blind, Parallel, Placebo-Controlled Induction Study of Mirikizumab in Conventional-Failed and Biologic-Failed Patients With Moderately to Severely Active Ulcerative Colitis (LUCENT 1)
A Phase 3, Multicenter, Randomized, Double-Blind, Parallel, Placebo-Controlled Induction Study of Mirikizumab in Conventional-Failed and Biologic-Failed Patients With Moderately to Severely Active Ulcerative Colitis (LUCENT 1)
Enrollment Status: Completed
Publish Date: May 31, 2025
Intervention Type: Drug
Study Drug: Mirikizumab
Study Phase: Phase 3
A Phase 3, Double-Blind, Randomized, Placebo-Controlled, Multicenter Study to Evaluate the Efficacy and Safety of Obeticholic Acid in Subjects With Compensated Cirrhosis Due to Nonalcoholic Steatohepatitis
A Phase 3, Double-Blind, Randomized, Placebo-Controlled, Multicenter Study to Evaluate the Efficacy and Safety of Obeticholic Acid in Subjects With Compensated Cirrhosis Due to Nonalcoholic Steatohepatitis
Enrollment Status: Completed
Publish Date: October 23, 2023
Intervention Type: Drug
Study Drug: Obeticholic acid
Study Phase: Phase 3
View 2 Less Clinical Trials
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Frequently Asked Questions about Dr. Robert I. Leventhal

How do I make an appointment with Dr. Robert I. Leventhal?

You can book an appointment with Dr. Robert I. Leventhal by calling their office at 203-756-6422. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.

Is Dr. Robert I. Leventhal a top-rated expert for Irritable Bowel Syndrome (IBS)?

MediFind is an objective health platform that identifies experts based on real-world data. Dr. Robert I. Leventhal is classified as an Distinguished expert for Irritable Bowel Syndrome (IBS), 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 I. Leventhal specialize in?

While Dr. Robert I. Leventhal is a Internal Medicine, they have specific expertise in Irritable Bowel Syndrome (IBS), Diverticular Disease, and Gastrointestinal Bleeding. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Internal Medicine.

Does Dr. Robert I. Leventhal accept my insurance?

Dr. Robert I. Leventhal accepts most major insurance plans, including Aetna and Anthem BCBS. We recommend calling the office directly at 203-756-6422 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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