David R Marks, M.D.
David R Marks is an Internal Medicine specialist based in Ansonia, CT with over 42 years of clinical experience. Offers virtual telehealth visits.
David R Marks, M.D. practices as part of a group internist practice in Ansonia, CT. Trained at Yale University School of Medicine (class of 1984), he has been practicing for over 42 years. Among his Medicare patients, common conditions include hypertension, high cholesterol, and arthritis (per CMS data).
At a glance
- Uses generic medications more than 57% of reporting doctors in Connecticut
- Virtual visits available — no app or travel required
Older · 1993dNPPES updated 2020-12-07 · verify NPI on CMS · Verify license at Connecticut Medical Examining Board
Contact & Location
Practice Location
111 Wakelee Ave, Ansonia, CT 06401-1151
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages Hypertension, High Cholesterol, and Arthritis.
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↑ More patients than average (+5%) — a focus area for this doctor
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+3%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-9%) — less common here
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↓ Fewer patients than average (-5%) — less common here
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↓ Fewer patients than average (-3%) — less common here
Conditions affecting emotional state, including depression and bipolar disorder
A mood disorder causing persistent sadness and loss of interest in activities
US avg: 31.8%↓ Fewer patients than average (-6%) — less common here
Excessive worry or fear that interferes with daily life
US avg: 34.1%↓ Fewer patients than average (-8%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1984
Yale University School of Medicine
Board certified · Dec 6, 2020
Self-reported via NPPES
42 years in practice
Senior practitioner
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Taxonomy: 207R00000X
Education & Training
Yale University School of Medicine (Class of 1984)
Mailing address
67 Maple Ave, Derby, CT 06418-1328
Differs from practice location
Virtual Internal Medicine Care With David R Marks
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with David R Marks for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to Ansonia required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.
Frequently Asked Questions
Common questions about David R Marks
Dr. Marks is listed as active in the NPI registry with telehealth listed in Ansonia, CT. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (203) 308-2781.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.
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Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.
Contact David R Marks
Practice Location
111 Wakelee Ave, Ansonia, CT 06401-1151
Mailing Address
67 Maple Ave, Derby, CT 06418-1328
This is a provider directory. Contact the office directly to schedule appointments.
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