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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 30 days.

SANTIAGO SIERRA PA
NPI 1518880350
Physician Assistant in Sherman Oaks, CA

Active since July 30, 2026
4929 VAN NUYS BLVD, SHERMAN OAKS, CA 91403(818) 907-4570 Get Directions Write a Review

NPPES record added: July 30, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Santiago Sierra Pa NPPES

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

SANTIAGO SIERRA PA (NPI 1518880350) is an individual physician assistant in Sherman Oaks, California, licensed in California (PA68652) and active in the NPI registry since July 2026. He maintains 2 additional practice locations.

NPPES Registry Identity

NPI1518880350
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameSANTIAGO SIERRACredential: PA
Location Address4929 VAN NUYS BLVDSherman Oaks, CA 91403-1702
Mailing Address62 Tulip Ave Apt A8Floral Park, NY 11001-1801
Phone(818) 907-4570
Sole ProprietorNo
Enumeration DateJuly 30, 2026
NPPES CertifiedJuly 30, 2026
✔ NPI 1518880350 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in CA · PA68652
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
4929 VAN NUYS BLVD, Sherman Oaks, CA 91403
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Secondary Practice Locations 2

Location 115107 Vanowen StVan Nuys, CA 91405-4542 · Phone (818) 782-6600
Location 218321 Clark StTarzana, CA 91356-3501 · Phone (818) 881-0800

Other Providers at the Same Location NPPES 20

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

JEFFERY C PEAK M.D.
Anesthesiology
4929 VAN NUYS BLVD
SHERMAN OAKS, CA 91403
Los Angeles County (818) 550-0900
JOHN E. GLASSCO, MD, INC.
Pathology (Anatomic Pathology & Clinical Pathology)
4929 VAN NUYS BLVD
SHERMAN OAKS, CA 91403
Los Angeles County (818) 907-4561
SHERMAN OAKS CARDIOLOGY ASSOCIATES
Internal Medicine (Cardiovascular Disease)
4929 VAN NUYS BLVD
SHERMAN OAKS, CA 91403
Los Angeles County (818) 907-4530
SUSAN ANGIE TAMALE NP
Hospitalist
4929 VAN NUYS BLVD
SHERMAN OAKS, CA 91403
Los Angeles County (818) 907-2825
GAYANE DIANA BAKHARYAN ACSW
Social Worker (Clinical)
4929 VAN NUYS BLVD
SHERMAN OAKS, CA 91403
Los Angeles County (818) 817-3294
SUSAN WON PHARM.D
Pharmacist
4929 VAN NUYS BLVD
SHERMAN OAKS, CA 91403
Los Angeles County (818) 907-4556
RONALD PHILLIP BATACLAN NP
Nurse Practitioner (Acute Care)
4929 VAN NUYS BLVD
SHERMAN OAKS, CA 91403
Los Angeles County (818) 981-7111
MORGAN MCLEROY CRNA
Nurse Anesthetist, Certified Registered
4929 VAN NUYS BLVD
SHERMAN OAKS, CA 91403
Los Angeles County (818) 981-7111

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 Santiago Sierra's NPI number?

The NPI number for Santiago Sierra is 1518880350. It was assigned to this individual provider in the NPPES registry on July 30, 2026.

Where is Santiago Sierra located?

Santiago Sierra practices at 4929 Van Nuys Blvd, Sherman Oaks, CA 91403. The listed phone number is (818) 907-4570.

What is Santiago Sierra's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

When was this NPI record last updated?

The NPPES record for Santiago Sierra was last updated on July 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.