
Seth Sullivan, MD
Quick Facts
| Practice Type | Concierge |
| Location | New Canaan |
| Doctors | Seth Sullivan MD, Family Medicine |
About
At Seth Sullivan, MD, a board-certified family physician delivers concierge primary care to adults in New Canaan, Connecticut. Dr. Sullivan built his practice around person-centered medicine, focusing on genuine relationships and long-term health.
His clinical scope extends well beyond routine primary care. He manages a wide range of chronic conditions, including diabetes, hypertension, heart disease, COPD, and fibromyalgia. He also offers dedicated nutrition counseling, weight loss programs, and men's health services. The practice handles onsite diagnostics including blood draws, urinalysis, EKG, X-rays, and rapid testing for strep, flu, and COVID-19. Urgent care visits are available exclusively to established patients. Castle Connolly recognized Dr. Sullivan as a Top Doc in 2022, and the Vasculitis Foundation presented him with its V-RED award for excellence in diagnostics in 2016.
Details
Address
173 East Avenue, New Canaan, CT 06840
Phone
(203) 972-4215Website
Visit websiteMembership Details
Bills a set fee each quarter; patients receive specific services, prompt appointments, electronic scheduling, and direct access to his cell phone number. A set fee is also charged for any additional services beyond what the membership covers.
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Frequently Asked Questions
The practice bills a set fee each quarter. That fee covers a defined set of services, prompt appointments, electronic scheduling, and direct access to Dr. Sullivan's cell phone. If you need services beyond what the membership covers, the practice charges a separate set fee for those additional visits or services. There are no hidden fees.
Yes. Members receive Dr. Sullivan's personal cell phone number as part of their membership. This direct line gives you access to your physician without going through a call center or waiting for a callback.
The practice does not require insurance approval for the care Dr. Sullivan provides. Members pay the quarterly membership fee directly. You may still use insurance for outside referrals, specialist visits, or prescriptions, but the practice operates independently of insurance for its own services.
Dr. Sullivan manages a broad range of ongoing conditions, including diabetes, hypertension, heart disease, high cholesterol, asthma, arthritis, COPD, chronic kidney disease, chronic liver disease, inflammatory bowel disease, fibromyalgia, chronic pain, chronic fatigue syndrome, and allergies. He approaches chronic disease management with an emphasis on lifestyle interventions alongside medication when needed.
Dr. Sullivan reviews food diaries, builds customized meal plans, and conducts behavioral assessments to identify habits that work against your goals. His weight loss program combines nutrition counseling, exercise recommendations, and behavioral modification. When appropriate, he also recommends dietary supplements or prescription weight loss medications.
Yes. Dr. Sullivan addresses a full range of men's health concerns, including low testosterone, erectile dysfunction, enlarged prostate, and prostate cancer screening. He also conducts yearly wellness exams and manages hormone therapy for eligible patients.
The practice handles many common diagnostics without sending you elsewhere. Onsite capabilities include blood draws, urinalysis, CBC, lipid panels, serum glucose, basic metabolic panel, C-reactive protein, rapid strep and flu testing, COVID-19 testing, EKG, and X-rays. This lets Dr. Sullivan review results and act quickly during the same visit.
Dr. Sullivan does offer urgent care, but exclusively for established patients. The practice does not open urgent care visits to the public. As a member, you can contact Dr. Sullivan directly and schedule a prompt appointment when an unexpected issue comes up.
The practice accepts new adult patients on a rolling basis, but it maintains a limited panel size. You can book online or call the office at 203-972-4215 to inquire about availability. Spots are limited, so the practice encourages prospective patients to reach out promptly.
Yes. Dr. Sullivan performs DOT physicals for commercial motor vehicle operators who need a federally required medical evaluation. You can schedule a DOT physical by booking online or contacting the office directly.
Practice last updated March 21, 2026


