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

Witmer Neonatology Associates, Inc

Organization Neonatal-Perinatal Medicine Physician · NPI 1063543627

Witmer Neonatology Associates, Inc is a Neonatal-Perinatal Medicine Physician in Los Angeles, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

1245 Wilshire Blvd
Los Angeles, CA 90017-4810
Phone: (213) 977-4123
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Neonatal-Perinatal Medicine Physician (primary) Taxonomy 2080N0001X · Licence FNP 29985 (CA)

Record details

NPI number1063543627
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Bijan Siassi — Co-Owner · (323) 226-3499
NPI enumeratedMarch 7, 2007
Last updated in NPPESAugust 22, 2020
Mailing addressPo Box 9690, Glendale, CA 91226-0690

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