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

Walter Thomas MD a Medical Corporation

Organization Addiction Medicine (Family Medicine) Physician · NPI 1598953358

Walter Thomas MD a Medical Corporation is an Addiction Medicine (Family Medicine) Physician in Simi Valley, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007

Practice location Address checks out

1980 Sequoia Ave
Simi Valley, CA 93063-3167
Phone: (805) 527-1804
Fax: (805) 527-5241
Show map & directions

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

Specialties & licences

Addiction Medicine (Family Medicine) Physician (primary) Taxonomy 207QA0401X · Licence A34536 (CA)

Record details

NPI number1598953358
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Walter Thomas — M.D. · (805) 527-1804
NPI enumeratedOctober 5, 2007
Last updated in NPPESDecember 17, 2019
Certification dateDecember 17, 2019
Mailing addressPo Box 2218, Simi Valley, CA 93062-2218