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WALTER THOMAS MD A MEDICAL CORPORATION
NPI 1598953358
Family Medicine - Addiction Medicine in Simi Valley, CA

Active since October 05, 2007CLIA 05D0584165 · Waiver
1980 SEQUOIA AVE, SIMI VALLEY, CA 93063(805) 527-1804(805) 527-5241 Get Directions Write a Review

NPPES record last updated: December 17, 2019. Verified against the NPPES registry weekly; last sync: September 06, 2026.

About Walter Thomas Md A Medical Corporation NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WALTER THOMAS MD A MEDICAL CORPORATION (NPI 1598953358) is a healthcare organization registered as an addiction medicine in Simi Valley, California and active in the NPI registry since October 2007. The organization holds a CLIA Waiver certificate valid through August 31, 2028 and lists Walter Thomas, M.d., as its authorized official.

NPPES Registry Identity

NPI1598953358
Entity TypeOrganization
Primary Taxonomy207QA0401X
Legal Business NameWALTER THOMAS MD A MEDICAL CORPORATION
Location Address1980 SEQUOIA AVESimi Valley, CA 93063-3167
Mailing AddressPo Box 2218Simi Valley, CA 93062-2218 · (805) 527-1804 · Fax (805) 527-5241
Phone(805) 527-1804
Fax(805) 527-5241
Organization SubpartNo
Authorized OfficialWalter ThomasM.d. · (805) 527-1804
Enumeration DateOctober 5, 2007
Last NPPES UpdateDecember 17, 2019
✔ NPI 1598953358 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily Medicine · Addiction MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207QA0401X
License✔ Licensed in CA · A34536
Definition
A family medicine physician who specializes in the diagnosis and treatment of addictions.
1980 SEQUOIA AVE, Simi Valley, CA 93063
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D0584165

Walter Thomas MD · Simi Valley, CA
Active · expires Aug 31, 2028
CLIA Number05D0584165
Laboratory TypePhysician Office
Certificate Effective DateSeptember 1, 2026
Certificate Expiration DateAugust 31, 2028
Laboratory DirectorWalter MD Thomas
Laboratory Phone(805) 527-1804
Laboratory LocationWalter Thomas MD1980 Sequoia Ave, Simi Valley, CA 93063
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Other Providers at the Same Location NPPES 8

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MARGARET SORIANO NURSE PRACTITIONER
Family Medicine
1980 SEQUOIA AVE
SIMI VALLEY, CA 93063
Ventura County (805) 583-5555
MRS. INGRID R SHARPE PA-C
Physician Assistant
1980 SEQUOIA AVE
SIMI VALLEY, CA 93063
Ventura County (805) 583-5555
VERTEX PHYSICAL THERAPY INC.
Clinic/Center (Physical Therapy)
1980 SEQUOIA AVE
SIMI VALLEY, CA 93063
Ventura County (805) 306-0070
EASTERN VENTURA MEDICAL GROUP, INC.
Family Medicine
1980 SEQUOIA AVE
SIMI VALLEY, CA 93063
Ventura County (805) 583-5555
BEVERLEY KORNDER M.D.
Family Medicine
1980 SEQUOIA AVE
SIMI VALLEY, CA 93063
Ventura County (805) 527-1804
DR. WALTER THOMAS MD
Family Medicine
1980 SEQUOIA AVE
SIMI VALLEY, CA 93063
Ventura County (805) 527-1804
MR. PAUL M LEFKO PT
Physical Therapist
1980 SEQUOIA AVE
SIMI VALLEY, CA 93063
Ventura County (805) 306-1840
DR. BRIAN R. SCHNARE M.D.
Family Medicine
1980 SEQUOIA AVE
SIMI VALLEY, CA 93063
Ventura County (805) 583-5555

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Walter Thomas MD A Medical Corporation's NPI number?

The NPI number for Walter Thomas MD A Medical Corporation is 1598953358. It was assigned to this organization in the NPPES registry on October 5, 2007.

Where is Walter Thomas MD A Medical Corporation located?

Walter Thomas MD A Medical Corporation is located at 1980 Sequoia Ave, Simi Valley, CA 93063. The listed phone number is (805) 527-1804.

What is Walter Thomas MD A Medical Corporation's specialty?

The primary specialty registered for this NPI is Family Medicine, specializing in Addiction Medicine, with taxonomy code 207QA0401X.

Does Walter Thomas MD A Medical Corporation hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D0584165) is associated with this NPI, valid through August 31, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Walter Thomas MD A Medical Corporation was last updated on December 17, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.