Dr. Mark Leonard Katz
M.D. | Addiction Psychiatry
5901 E 7th St, Mailcode #006/116a - Mental Health Cg, Long Beach
California, 90822-5201
562-826-8000 562-826-5431
Maps & DirectionsDr. Mark Leonard Katz is a Long Beach, California based psychiatrist who is specialized in Addiction Psychiatry. Active license number of Dr. Mark Leonard Katz is G 62277 for Addiction Psychiatry in California. His current practice location is 5901 E 7th St, Mailcode #006/116a - Mental Health Cg, Long Beach. Patients can reach him at 562-826-8000 or can fax him at 562-826-5431. Dr. Mark Leonard Katz is M.D. in Addiction Psychiatry and his NPI number (Unique professional ID assigned by NPPES) is 1558478941.
Dr. Mark Leonard Katz focuses on evaluation and treatment of individuals with alcohol, drug, or other substance-related disorders, and of individuals with dual diagnosis of substance-related and other psychiatric disorders.
Complete Profile:
Dr. Mark Leonard Katz 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. Mark Leonard Katz |
| Specialization: | Addiction Psychiatry |
| Gender: | Male |
| Credentials: | M.D. |
| Practice Address: | 5901 E 7th St, Mailcode #006/116a - Mental Health Cg, Long Beach,
California, 90822-5201 |
| Phone: | 562-826-8000 |
| Fax: | 562-826-5431 |
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.
| NPI Number: | 1558478941 |
| NPI Enumeration Date: | 23 Aug, 2006 |
| NPI Last Update On: | 08 Jul, 2007 |
Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Dr. Mark Leonard Katz are as mentioned below.
| License Number | Specialization | State | Status | |
| G 62277 | Addiction Psychiatry | California | Primary | |
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. Mark Leonard Katz
5901 E 7th St, Mailcode #006/116a - Mental Health Cg
Long Beach, California |
| Zip: | 90822-5201 |
| Phone Number: | 562-826-8000 |
| Fax Number: | 562-826-5431 |
Patients can reach Dr. Mark Leonard Katz at
5901 E 7th St, Mailcode #006/116a - Mental Health Cg, Long Beach, California or can
call to book an appointment on 562-826-8000.
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Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 08 December, 2025.