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Summary
Dr. Dieffenbach graduated from the Weill Cornell Medical College in 1990. He works in New Canaan, CT and specializes in Psychiatry. Dr. Dieffenbach is affiliated with Silver Hill Hospital.
Quick Facts
- 36 years of experience
- Greenwich Hospital
- 1 specialty
- 12 areas of expertise
- 1 hospital affiliation
- 1 office location
- Male
Office Location
Compare with Similar Doctors
 |  |  |  |
| Dr. Eric John Dieffenbach, MD | Joseph Patriciello, NP, PMHNP-BC | Dr. Alexandra Hill, MD | Dr. Molly Fels, MD |
| Psychiatry | Psychiatry | Psychiatry | Psychiatry |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 36 Years of Experience | 2 Years of Experience | 8 Years of Experience | 8 Years of Experience |
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | Virtual Visit Available |
| Speaks English | Speaks English | Speaks English | |
| New Canaan , CT | New York , NY | Denver , CO | Greenwich , CT |
| Med School: Weill Cornell Medical College | Med School: Stony Brook University | Med School: University of Colorado School of Medicine | Med School: Rutgers - Robert Wood Johnson Medical School |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Eric John Dieffenbach
Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.
Medical Specialties
Dr. Eric John Dieffenbach has the following specialty
Specialty Expertise
Dr. Eric John Dieffenbach has the following 12 areas of expertise
Certifications, License, & Education
36 Years Experience
Dr. Eric John Dieffenbach 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 2025.
Education & Training
Residency
Completed their residency at Greenwich Hospital.
Medical School
Graduated from Weill Cornell Medical College in 1990.
NPI Number
Dr. Dieffenbach's NPI number is 1497082614.
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Frequently Asked Questions
- Where is Dr. Eric Dieffenbach's office located?
- Dr. Eric Dieffenbach's office is located at 72 Park St, New Canaan, CT, 06840.
- Which hospitals is Dr. Eric Dieffenbach affiliated with?
- Dr. Eric Dieffenbach is affiliated with Silver Hill Hospital.
- Does Dr. Eric Dieffenbach accept my insurance?
- You can see the insurance plans that Dr. Eric Dieffenbach accepts on their Vitals profile.
- How can I make an appointment with Dr. Eric Dieffenbach?
- You can find contact information for Dr. Eric Dieffenbach here on Vitals.
- Is Dr. Eric Dieffenbach accepting new patients?
- Dr. Eric Dieffenbach has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Data Sources
This provider profile is built using data from:
- NPPES NPI Registry
- State medical licensing boards
- Healthcare system and provider network data
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