HealthcareDiscovery.AI / Doctors / Connecticut / Darien / Internal Medicine

Internal Medicine in Darien, Connecticut

Data updated monthly · Last refresh September 2026

15 Internal Medicine providers practice in Darien. Listings are drawn from federal public records and are not endorsements.

Internal Medicine providers in Darien

Listed alphabetically. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.

Dr. Amanda Collins- Baine, M.D.
Darien, CT · $361 in drug and device payments (2025) · (203) 286-5604
Dr. Carolyn Langelier, M.D.
Darien, CT · No drug or device payments recorded (2025) · (203) 655-1486
Dr. Charles Miner, M.D.
Darien, CT · $29 in drug and device payments (2025) · (203) 276-4801
Dr. Gene Balboa, MD
Darien, CT · No drug or device payments recorded (2025) · (203) 662-8900
Dr. James Dorr, M.D.
Darien, CT · No drug or device payments recorded (2025) · (203) 655-8749
Dr. Karthik Gunachelvan
Darien, CT · No drug or device payments recorded (2025) · Telehealth · (203) 655-8749
Dr. Margaret Baran
Darien, CT · No drug or device payments recorded (2025) · Telehealth · (203) 655-8749
Dr. Mark Dam, M.D
Darien, CT · No drug or device payments recorded (2025) · (203) 662-8900
Dr. Michael Schwartz, D.O.
Darien, CT · No drug or device payments recorded (2025) · (203) 662-8900
Dr. Philip Negus, M.D.
Darien, CT · $29 in drug and device payments (2025) · Telehealth · (203) 276-4801
Dr. Qurat Mudassar, MD
Darien, CT · No drug or device payments recorded (2025) · Telehealth · (203) 662-8900
Dr. Robert Lindberg, M.D.
Darien, CT · No drug or device payments recorded (2025) · (203) 656-1012
Dr. Sujana Sunkara, MD
Darien, CT · $99 in drug and device payments (2025) · (203) 655-8749
Dr. Susan Collins, M.D.
Darien, CT · No drug or device payments recorded (2025) · Telehealth · (203) 655-8749
Dr. William Giesen, M.D.
Darien, CT · $29 in drug and device payments (2025) · (203) 655-2516

Conditions Internal Medicine providers in Darien, Connecticut commonly treat

Patients often search by condition rather than specialty. These are conditions typically managed by Internal Medicine providers. Individual practices vary, so confirm with the provider before booking.

Common questions

How many Internal Medicine providers are in Darien, Connecticut?

There are 15 Internal Medicine providers with active NPI records practicing in Darien, according to federal NPPES data refreshed monthly.

What conditions do Internal Medicine providers in Darien treat?

Internal Medicine providers in Darien commonly treat high blood pressure, type 2 diabetes, high cholesterol, preventive care, chronic disease management and related conditions. Individual practices vary, so confirm with the provider before booking.

Where does this data come from?

Provider records come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

All specialties in Darien Internal Medicine across Connecticut

Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory.