Dr. John Gregory Duffy

MD | Psychiatry | 30+ years Exp


  1401 N. Tustin Avenue, Suite 130, Suite 165, Santa Ana
     California, 92705
  714-542-3008    714-542-3617 Maps & Directions
Dr. John Gregory Duffy is a Santa Ana, California based psychiatrist with 30 years of experience in Psychiatry. He completed his graduation from Georgetown University School Of Medicine in 1994. He may accept the Medicare-approved amount. Patients may be billed for more than the Medicare deductible and coinsurance. His current practice location is 1401 N. Tustin Avenue, Suite 130, Suite 165, Santa Ana. Patients can reach him at 714-542-3008 or can fax him at 714-542-3617. Dr. John Gregory Duffy is MD in Psychiatry and his NPI number (Unique professional ID assigned by NPPES) is 1255497251.
Dr. John Gregory Duffy specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
Complete Profile:
Dr. John Gregory Duffy speciality, credentials, practice address, contact phone number and fax are as below. Patients can call on the below given phone number for appointment.
Name: Dr. John Gregory Duffy
Specialization: Psychiatry
Gender:Male
Credentials: MD
Accepts Medicare Assignment:May Accept
Practice Address:1401 N. Tustin Avenue, Suite 130, Suite 165, Santa Ana,
California, 92705
Phone:714-542-3008
Fax:714-542-3617
Professional Identification Codes:
NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS). NPI details are as mentioned below.
PAC ID: 9537124888
Enrollment ID: I20041201000211
NPI Number: 1255497251
NPI Enumeration Date: 28 Dec, 2006
NPI Last Update On: 15 Mar, 2023

Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
Address: Dr. John Gregory Duffy
1401 N. Tustin Avenue, Suite 130, Suite 165
Santa Ana, California
Zip: 92705
Phone Number: 714-542-3008
Fax Number: 714-542-3617
Patients can reach Dr. John Gregory Duffy at 1401 N. Tustin Avenue, Suite 130, Suite 165, Santa Ana, California or can call to book an appointment on 714-542-3008.
*Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 13 May, 2024.