Psychiatrist | Geriatric Psychiatry

Donald J Johannessen, MD

425 E 79th St, Suite 1e, New York, New York, 10021-1037

About Donald J Johannessen

Donald J Johannessen is a psychiatrist based in New York, New York who is specialized in Geriatric Psychiatry. Active license number of Donald J Johannessen is 173503 for Geriatric Psychiatry in New York. His current practice location is 425 E 79th St, Suite 1e, New York. Patients can contact him at 212-249-4739 or can fax him at 212-737-5574. Donald J Johannessen, MD, specializes in Geriatric Psychiatry and his NPI number (Unique professional ID assigned by NPPES) is 1295800142.

Donald J Johannessen has psychiatric expertise in prevention, evaluation, diagnosis and treatment of mental and emotional disorders in the elderly, and improvement of psychiatric care for healthy and ill elderly patients.

Practice Information

Donald J Johannessen's specialty, credentials, practice address, contact phone number and fax are as below. Patients can call on the below given phone number for appointment.

Provider Name Donald J Johannessen
Specialization Geriatric Psychiatry
Credentials MD
Gender Male
Practice Address: 425 E 79th St, Suite 1e
New York, NY - 10021-1037
Fax 212-737-5574

Professional Identification Codes

NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to healthcare providers in the United States by the Centers for Medicare and Medicaid Services (CMS). NPI details are as mentioned below.

NPI Number1295800142
NPI Enumeration Date: 22 Nov, 2006
NPI Last Update On: 08 Jul, 2007

Medical Licenses:

Healthcare professionals can hold one or more medical licenses for different specialties in the same state or different states. Related medical licenses for Donald J Johannessen are as mentioned below.

License NumberSpecializationStateStatus
173503Geriatric Psychiatry New YorkPrimary

Other Medical Identifiers

Other professional identifiers associated with Donald J Johannessen such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
IdentifierTypeStateIssuer
1557886MedicaidNew York

Mailing Address

Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned Practice address.

Donald J Johannessen
425 E 79th St, Suite 1e
New York, NY - 10021-1037
Phone: 212-249-4739
Fax: 212-737-5574

Book an Appointment with Donald J Johannessen

To schedule an appointment, contact Donald J Johannessen at 425 E 79th St, Suite 1e, New York, New York or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Donald J Johannessen:

Donald J Johannessen is a psychiatrist specializing in Geriatric Psychiatry. He has psychiatric expertise in prevention, evaluation, diagnosis and treatment of mental and emotional disorders in the elderly, and improvement of psychiatric care for healthy and ill elderly patients.

Yes, Donald J Johannessen is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.
*Availability may change. Please contact the office directly to ask about appointments.

Donald J Johannessen practices at 425 E 79th St, Suite 1e, New York, New York, 10021-1037.

To schedule an appointment with Donald J Johannessen, please contact the office at 212-249-4739.

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**Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 14 September, 2026.