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Healthcare Providers & Facilities in Darien, CT

Public healthcare directory of 380 individual practitioners and 137 healthcare facilities located in Darien, Connecticut.

380 Practitioners
137 Facilities
77 Specialties

Medical Specialties in Darien

Select a specialty to view practitioner listings, practice locations, and qualifications.

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All Specialties in Darien

Specialties with enough public records for a comparison with U.S. figures, besides those named above, plus the 60 largest of 75 more with at least one listed practitioner. Number of practitioners in brackets.

Chiropractic Providers

Dietary & Nutritional Service Providers

Eye and Vision Services Providers

Nursing Service Providers

Nursing Service Related Providers

Pharmacy Service Providers

Podiatric Medicine & Surgery Service Providers

Respiratory, Developmental, Rehabilitative and Restorative Service Providers

Speech, Language and Hearing Service Providers

Featured Healthcare Providers in Darien

Practitioner profiles in Darien, CT with recent CMS Medicare or Open Payments data.

Dr. Robert Marsillo , DC

Chiropractor

484 Post Rd, Darien, CT
Phone: 2036562044
NPI 1639132210

Dr. Despina Trigenis , DO

Emergency Medicine

Medicare Accepted
17 Bailey Ave, Darien, CT
Phone: 9179751522
NPI 1619073467

Andrea Ciano

Family Medicine

Medicare Accepted
104 Heights Rd, Darien, CT
Phone: 8886636331
NPI 1265825970

Dr. Brian Mckay , DC

Chiropractor

551 Post Rd, Darien, CT
Phone: 2036563636
NPI 1841388204

Dr. Matthew Juriga , DPM

Podiatrist

Medicare Accepted
800 Post Rd, Darien, CT
Phone: 2036561696
NPI 1760781785

Nura Salameh

Optometrist

122 Heights Rd Ste 318, Darien, CT
Phone: 2032734213
NPI 1548670920

Largest Cities in Connecticut

Other Connecticut cities with a full directory, by the number of active practitioners listed in NPPES.

How Darien compares with the U.S.

Compared with the U.S. as a whole, Darien has more Physical Therapists (1.6x) and clinicians in Internal Medicine (1.5x) per 100,000 residents.

Darien has 1,732 active clinicians per 100,000 residents, compared with 2,198 for the U.S.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

86% of clinicians in Darien listed in the CMS Medicare file (77 of 90) accept Medicare assignment. That is lower than the Connecticut share of 91%.

Only 90 of 380 active clinicians in Darien appear in the CMS Medicare file, so this share describes that smaller group.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

22% of clinicians in Darien listed in the CMS Medicare file (20 of 90) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is similar to the Connecticut share of 22%.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Darien CMS Healthcare & Financial Disclosures

CMS Part D Prescribers (2024), Open Payments (program year 2025), Medicare (PECOS) enrollment and Part B (2024) data for Darien, CT

Source: CMS public datasets

Healthcare operations in Darien, CT encompass 380 active individual practitioners and 137 registered medical facilities across 77 clinical specialties.

According to CMS Medicare Part D analytics for 2024, prescription drug volume in Darien accounts for $4.9 Million across 51,466 prescription claims. 129 local practitioners have a Medicare (PECOS) enrollment record. Open Payments data for program year 2025 list $0.1 Million in payments reported by companies to 45 local practitioners; a reported payment does not necessarily mean the financial relationship is improper.

Medicare Part D Prescriptions (2024) $4.9M 51,466 Prescription Claims Source: data.cms.gov
Open Payments Sunshine Act (2025) $0.1M 45 Recipients Disclosed A reported payment does not necessarily mean the financial relationship is improper. Source: openpaymentsdata.cms.gov
Medicare (PECOS) Enrollment 129 Enrolled Medicare Practitioners Source: data.cms.gov
Medicare Part B Allowed Volume (2024) $5.8M 78,132 Services Performed Source: data.cms.gov

CMS PECOS: Eligible to Order or Refer for Medicare in Darien

Part B Lab & Imaging Eligible: 94
Durable Medical Equipment (DME): 99
Home Health Agency (HHA): 70
Source: CMS Order and Referring