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

ALESSANDRA YOON PA-C
NPI 1437062049
Physician Assistant in Pomona, CA

Active since September 24, 2026
309 E 2ND ST, POMONA, CA 91766(909) 623-6116 Get Directions Write a Review

NPPES record added: September 24, 2026. Verified against the NPPES registry weekly; last sync: September 27, 2026.

About Alessandra Yoon Pa-c NPPES

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

ALESSANDRA YOON PA-C (NPI 1437062049) is an individual physician assistant in Pomona, California and active in the NPI registry since September 2026.

NPPES Registry Identity

NPI1437062049
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameALESSANDRA YOONCredential: PA-C
Location Address309 E 2ND STPomona, CA 91766-1854
Mailing Address309 E 2nd StPomona, CA 91766-1854 · (909) 623-6116
Phone(909) 623-6116
Sole ProprietorYes
Enumeration DateSeptember 24, 2026
NPPES CertifiedSeptember 24, 2026
✔ NPI 1437062049 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
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.
309 E 2ND ST, Pomona, CA 91766
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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.

NANCY IRENE NIELSEN-BROWN PA-C
Physician Assistant (Medical)
309 E 2ND ST
POMONA, CA 91766
Los Angeles County (909) 469-5386
BRITTNEY TUNON
Physician Assistant
309 E 2ND ST
POMONA, CA 91766
Los Angeles County (703) 955-6286
MR. EVAN HERSHMAN
Student in an Organized Health Care Education/Training Program
309 E 2ND ST
POMONA, CA 91766
Los Angeles County (909) 469-5589
CHAU MINH NGUYEN PA-C
Physician Assistant
309 E 2ND ST
POMONA, CA 91766
Los Angeles County (951) 892-4858
AMI PATEL
Student in an Organized Health Care Education/Training Program
309 E 2ND ST
POMONA, CA 91766
Los Angeles County (909) 469-5589
MR. FOUAD HAJJAR
Student in an Organized Health Care Education/Training Program
309 E 2ND ST
POMONA, CA 91766
Los Angeles County (909) 469-5589
THAO BICH VU
Student in an Organized Health Care Education/Training Program
309 E 2ND ST
POMONA, CA 91766
Los Angeles County (909) 469-5589
JULIA B DIAMANT
Student in an Organized Health Care Education/Training Program
309 E 2ND ST
POMONA, CA 91766
Los Angeles County (909) 469-5589

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 Alessandra Yoon's NPI number?

The NPI number for Alessandra Yoon is 1437062049. It was assigned to this individual provider in the NPPES registry on September 24, 2026.

Where is Alessandra Yoon located?

Alessandra Yoon practices at 309 E 2nd St, Pomona, CA 91766. The listed phone number is (909) 623-6116.

What is Alessandra Yoon'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 Alessandra Yoon was last updated on September 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.