Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

SIAMAK NEMATOLLAHI DC
NPI 1164328225
Chiropractor in Woodland Hills, CA

Q: What is Siamak Nematollahi's NPI number?

The NPI number for Siamak Nematollahi is 1164328225. It was assigned to this individual provider in the NPPES registry on October 15, 2026.

Q: What is Siamak Nematollahi's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

Active since October 15, 2026

21731 VENTURA BLVD STE 390, WOODLAND HILLS, CA 91364(818) 946-0137 Get Directions Write a Review

NPPES record added: October 15, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Siamak Nematollahi Dc NPPES

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

SIAMAK NEMATOLLAHI DC (NPI 1164328225) is an individual chiropractor in Woodland Hills, California, licensed in California (24183) and active in the NPI registry since October 2026.

NPPES Registry Identity

NPI1164328225

Entity TypeIndividualMale

Primary Taxonomy111N00000X

Provider Legal NameSIAMAK NEMATOLLAHICredential: DC

Location Address21731 VENTURA BLVD STE 390Woodland Hills, CA 91364-5113

Mailing Address4600 Dunman AveWoodland Hills, CA 91364-3816 · (818) 400-3552

Phone(818) 946-0137

Sole ProprietorYes

Enumeration DateOctober 15, 2026

NPPES CertifiedOctober 15, 2026

✔ NPI 1164328225 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyChiropractorChiropractic Providers

Taxonomy Code111N00000X

License✔ Licensed in CA · 24183

Definition

A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.

21731 VENTURA BLVD STE 390, Woodland Hills, CA 91364

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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 Siamak Nematollahi's NPI number?

The NPI number for Siamak Nematollahi is 1164328225. It was assigned to this individual provider in the NPPES registry on October 15, 2026.

Where is Siamak Nematollahi located?

Siamak Nematollahi practices at 21731 Ventura Blvd Ste 390, Woodland Hills, CA 91364. The listed phone number is (818) 946-0137.

What is Siamak Nematollahi's specialty?

The primary specialty registered for this NPI is Chiropractor with taxonomy code 111N00000X.

When was this NPI record last updated?

The NPPES record for Siamak Nematollahi was last updated on October 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 days 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.