Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

John Mgrditch Deirmenjian, MD

Individual provider Psychiatry Physician · NPI 1821009812

John Mgrditch Deirmenjian, MD is a Psychiatry Physician in Long Beach, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

333 W Broadway Ste 201
Long Beach, CA 90802-4437
Phone: (310) 428-3234
Fax: (562) 901-0501
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence G77009 (CA)

Record details

NPI number1821009812
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 11, 2006
Last updated in NPPESJanuary 28, 2011

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