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

Gregory H Tchejeyan MD Inc

Organization Specialist · NPI 1376835330

Gregory H Tchejeyan MD Inc is a Specialist in Thousand Oaks, California. Licensed in California. Registered with an NPI since 2011.

Licensed in
CA
In the registry since
2011
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

250 Lombard St Ste 1
Thousand Oaks, CA 91360-8208
Phone: (805) 495-3687
Fax: (805) 494-1828
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Specialist (primary) Taxonomy 174400000X · Licence A55364 (CA)

Record details

NPI number1376835330
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Siuke Lili — Manager · (805) 495-3687
NPI enumeratedMay 10, 2011
Last updated in NPPESMarch 29, 2022
Certification dateMarch 29, 2022
Mailing address250 Lombard St Ste 1, Thousand Oaks, CA 91360-8208

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