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CHRISTOPHER KASSAR D.O. INC.
NPI 1831346592
Family Medicine in San Dimas, CA

Active since August 25, 2008
615 E FOOTHILL BLVD STE A, SAN DIMAS, CA 91773(626) 335-3527(626) 623-7233 Get Directions Write a Review

NPPES record last updated: October 14, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Apr 10, 2025, Apr 4, 2025 (2 updates tracked since 2025).

About Christopher Kassar D.o. Inc. NPPES

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

CHRISTOPHER KASSAR D.O. INC. (NPI 1831346592), doing business as Tim Ferguson Md Inc, is a healthcare organization registered as a family medicine in San Dimas, California and active in the NPI registry since August 2008. The organization lists Tammi Lyn Parr, Office Manager, as its authorized official.

NPPES Registry Identity

NPI1831346592
Entity TypeOrganization
Primary Taxonomy207Q00000X
Legal Business NameCHRISTOPHER KASSAR D.O. INC.
Location Address615 E FOOTHILL BLVD STE ASan Dimas, CA 91773-1255
Mailing Address615 E Foothill Blvd Ste ASan Dimas, CA 91773-1255 · (626) 335-3527 · Fax (626) 623-7233
Phone(626) 335-3527
Fax(626) 623-7233
Organization SubpartNo
Authorized OfficialTammi Lyn ParrOffice Manager · (909) 335-3527
Enumeration DateAugust 25, 2008
Last NPPES UpdateOctober 14, 20252 updates tracked since enumeration
NPPES CertifiedOctober 14, 2025
✔ NPI 1831346592 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in CA · A036813
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
615 E FOOTHILL BLVD STE A, San Dimas, CA 91773
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Other Names 1

Former Legal Business NameTim Ferguson Md Inc

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Other Providers at the Same Location NPPES

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

DR. CHRISTOPHER E KASSAR DO
Family Medicine
615 E FOOTHILL BLVD STE A
SAN DIMAS, CA 91773
Los Angeles County (909) 335-3527

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 Christopher Kassar D.O. Inc.'s NPI number?

The NPI number for Christopher Kassar D.O. Inc. is 1831346592. It was assigned to this organization in the NPPES registry on August 25, 2008. The provider was formerly known as Tim Ferguson MD Inc.

Where is Christopher Kassar D.O. Inc. located?

Christopher Kassar D.O. Inc. is located at 615 E Foothill Blvd Ste A, San Dimas, CA 91773. The listed phone number is (626) 335-3527.

What is Christopher Kassar D.O. Inc.'s specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

When was this NPI record last updated?

The NPPES record for Christopher Kassar D.O. Inc. was last updated on October 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.