Summary

Dr. David Marks specializes in internal medicine with additional expertise in allergy and immunology. He earned his medical degree from Yale University School of Medicine and completed his residency at Greenwich Hospital. With 37 years of experience treating patients, Dr. Marks brings extensive knowledge to managing complex medical conditions. He is fluent in English.

Dr. Marks practices at Griffin Hospital in Derby, Connecticut, and Griffin Faculty Physicians Internal Medicine in Ansonia, Connecticut. He focuses on treating high cholesterol in children and teens, high cholesterol in adults, and high blood pressure. His diagnostic services include complete blood count testing and kidney function tests. Patients have given Dr. Marks an average rating of 3.3 out of 5 stars.

Overview based on verified provider data

Quick Facts

  • 3.3
  • 37 years of experience
  • speaks English
  • Greenwich Hospital
  • 41 written reviews
  • 2 specialties
  • 7 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 2 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. David Ryan Marks has 2 locations

Griffin Faculty Physicians Internal Medicine

111 Wakelee Ave Fl 1Ansonia, CT 06401
Mon8:00 am - 4:30 pm
Tue8:00 am - 4:30 pm
Wed8:00 am - 4:30 pm
Thu8:00 am - 4:30 pm
Fri8:00 am - 4:30 pm
SatClosed
SunClosed

Griffin Hospital

130 Division StDerby, CT 06418

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Dr. David Ryan Marks
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Dr. David Ryan MarksDr. Robin Allen, MDEric HarkerKerry L. Folkman, MSN, NP-C
Internal MedicineInternal MedicineInternal MedicineInternal Medicine
Accepts New Patients Accepts New Patients
3.3 
37 Years of Experience 23 Years of Experience 25 Years of Experience 16 Years of Experience
No Virtual Visit Option No Virtual Visit Option Virtual Visit Available Virtual Visit Available
Speaks English Speaks English Speaks English Speaks English
Ansonia , CTNew Britain , CTLyons , COBrookline , MA
Med School: Yale University School Of Medicine Med School: Baylor College of Medicine in Houston, Texas Med School: Duke University School Of Medicine Med School: Regis College
Current Profile
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Insurance Plans Accepted by Dr. David Ryan Marks

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. David Ryan Marks has the following 2 specialties

Specialty Expertise

Dr. David Ryan Marks has the following 7 areas of expertise

  • Allergy & Immunology
  • Check-up
  • Heartburn
  • Immunization
  • Physical
  • Vaccination
  • Weight Loss

Certifications, License, & Education

37 Years Experience

Dr. David Ryan Marks holds an expired medical license in the state of Connecticut.

Medical License

Medical Doctor with an expired medical license in the state of Connecticut that expired in 2026.

Education & Training

Residency

Completed their residency at Greenwich Hospital.

Medical School

Graduated from Yale University School Of Medicine in 1989.

NPI Number

Dr. Marks' NPI number is 1841486149.

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Frequently Asked Questions

What languages does Dr. David Marks speak?
Dr. David Marks speaks English.
Which hospitals is Dr. David Marks affiliated with?
Dr. David Marks is affiliated with Griffin Hospital.
How can I make an appointment with Dr. David Marks?
You can find contact information for Dr. David Marks here on Vitals.
Does Dr. David Marks accept my insurance?
You can see the insurance plans that Dr. David Marks accepts on their Vitals profile.
Does Dr. David Marks accept virtual/telehealth appointments?
Dr. David Marks has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

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