Summary

Dr. David Marks specializes in internal medicine with additional expertise in allergy and immunology. He completed his medical education at Yale University School of Medicine and his residency training at Greenwich Hospital. With 37 years of clinical experience, Dr. Marks brings extensive knowledge to caring for adult patients with both general internal medicine needs and specialized allergy-related conditions. He is fluent in English.

Dr. Marks practices at Griffin Hospital in Derby, Connecticut, and sees patients at Griffin Faculty Physicians Internal Medicine in Ansonia, Connecticut. He focuses on managing high cholesterol in children and teenagers, hyperlipidemia, and hypertension. His practice includes comprehensive blood testing and kidney function assessments to monitor patient health. Patients have given Dr. Marks an average rating of 3.3 on Vitals.

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
  • 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

Compare with Similar Doctors

Dr. David Ryan Marks
Dr. Robin Allen, MD
Dr. Peter George Hasapis, MD
Dr. Osama Kandalaft, MD
Dr. David Ryan MarksDr. Robin Allen, MDDr. Peter George Hasapis, MDDr. Osama Kandalaft, MD
Internal MedicineInternal MedicineInternal MedicineInternal Medicine
Accepts New Patients Accepts New Patients
3.3 
4.1 
37 Years of Experience 23 Years of Experience 12 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks English Speaks English, Russian, Spanish Speaks English
Ansonia , CTNew Britain , CTNew Canaan , CTGuilford , CT
Med School: Yale University School Of Medicine Med School: Baylor College of Medicine in Houston, Texas Med School: Cornell University Medical College Med School: Royal College Of Surgeons In Ireland School Of Medicine
Current Profile
View Profile View Profile View Profile

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.

Similar Doctors

Frequently Asked Questions

Is Dr. David Marks accepting new patients?
Dr. David Marks has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Where is Dr. David Marks's office located?
Dr. David Marks's office is located at 111 Wakelee Ave Fl 1, Ansonia, CT, 06401.
Does Dr. David Marks accept my insurance?
You can see the insurance plans that Dr. David Marks accepts on their Vitals profile.
Which hospitals is Dr. David Marks affiliated with?
Dr. David Marks is affiliated with Griffin Hospital.
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.

Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews

Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.

Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.

Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.