Deborah Blenner M.D.
Internal Medicine • Smithtown, NY
Information from public sources; not independently verified. Confirm hours, insurance and appointment availability with the clinic.
Last gathered July 11, 2026. How our information is sourced · Report incorrect information
About
Deborah Blenner M.D. is a general practitioner and board-certified internist in Smithtown, NY, offering primary care, weight management, adolescent care, and sleep disorder treatment for the whole family. The practice provides services including women's health, men's health, nutrition, immunizations, and annual exams.
Services Offered
Insurance & Payment
Not published.
Languages Spoken
Not published.
Current Offers
New patient information
FAQs
What services does Deborah Blenner M.D. offer?
General practitioner, internal medicine, weight management, adolescent care, sleep disorders, and family medicine.
What are the hours of operation?
8:00 am - 4:00 pm, 9:00 am - 5:00 pm, 12:00 pm - 8:00 pm
What is the full address for the location?
45 Terry Road, Suite B, Smithtown, NY 11787
What is the contact phone number?
(631) 656-8171
What is the contact email?
[email protected]
Social Media
Photos
Photos published by Deborah Blenner M.D. showing the internal medicine practice in Smithtown, NY.
What Patients Say
Overall sentiment across review platforms: positive
- Catholic Health (official practice site): 4.9 out of 5 (270 ratings, 38 reviews)
- WebMD: 4.5 out of 5 (14 ratings)
Patients praise
- Thorough and caring patient care
- Excellent communicator who listens to concerns
- Highly recommended by many patients for being personable and knowledgeable
- Efficient office staff and minimal wait times for many patients
Common complaints
- Some patients reported frustration regarding appointment policies, specifically that new patient visits are restricted to physicals and additional concerns require separate appointments
- One patient expressed dissatisfaction, claiming the focus was on financial gain rather than medical issues
"I love Dr Blenner!! She's amazing, thorough when making sure she covers everything, very easy to talk with, she really cares!! I have already recommended my friends to come to her."
- Catholic Health Patient Review"Dr. Blenner is absolutely HORRIBLE!! I went as a new patient & she didn't want to hear any issues I had... just a physical. She told me that I would need another appointment to tell her any issues."
- Vitals Patient ReviewSynthesized from public review platforms as of Jul 11, 2026 - sources: [1][2][3][4].
In the News
- Deborah S. Blenner, MD | Catholic Health | Long Island - Smithtown, NY - Internal Medicine - Schedule Online - Feb 27, 2026
- Deborah S. Blenner, MD | Catholic Health | Long Island - Smithtown, NY - Internal Medicine - Schedule Online - Mar 28, 2026
- Dr. Deborah Weiss, MD - Internal Medicine Physician in Smithtown, NY - May 14, 2026
- Dr. Nyembezi Dhliwayo - Internal Medicine Physician in Smithtown, NY - May 14, 2026
- Dr. Navpreet Dhuga, DO - Family Medicine Doctor in Smithtown, NY - May 14, 2026
Information sourced from the clinic's website as of July 11, 2026.
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