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

Mark Siazon

Individual provider Adult Psychiatric/Mental Health Registered Nurse · NPI 1861198657

Mark Siazon is an Adult Psychiatric/Mental Health Registered Nurse in Los Angeles, California. Licensed in California. Registered with an NPI since 2023.

Licensed in
CA
In the registry since
2023

Practice location Address checks out

1720 E Cesar E Chavez Ave
Los Angeles, CA 90033-2414
Phone: (323) 268-5000
Show map & directions

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

Specialties & licences

Adult Psychiatric/Mental Health Registered Nurse (primary) Taxonomy 163WP0809X · Licence 95233611 (CA)

Record details

NPI number1861198657
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedFebruary 2, 2023
Last updated in NPPESFebruary 2, 2023
Certification dateFebruary 2, 2023

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