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

Dr. Tammy S CHI, MD

Individual provider Pediatrics Physician · NPI 1003945585

Dr. Tammy S CHI, MD is a Pediatrics Physician in Thousand Oaks, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

299 W Hillcrest Dr Ste 100
Thousand Oaks, CA 91360-7820
Phone: (805) 497-7888
Fax: (805) 494-3498
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatrics Physician (primary) Taxonomy 208000000X · Licence G84669 (CA)

Record details

NPI number1003945585
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 2, 2007
Last updated in NPPESOctober 14, 2023
Certification dateOctober 14, 2023
Mailing address299 W Hillcrest Dr Ste 100, Thousand Oaks, CA 91360-7820

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