Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

KAREN XIAO MD
NPI 1063153088
Emergency Medicine in Pasadena, CA

Q: What is Karen Xiao's NPI number?

The NPI number for Karen Xiao is 1063153088. It was assigned to this individual provider in the NPPES registry on April 5, 2022.

Q: What is Karen Xiao's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Q: When was this NPI record last updated?

The NPPES record for Karen Xiao was last updated on July 7, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since April 05, 2022

100 W CALIFORNIA BLVD, PASADENA, CA 91105(855) 522-7898 Get Directions Write a Review

NPPES record last updated: July 7, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Jul 7, 2026, Apr 5, 2022 (2 updates tracked since 2022).

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About Karen Xiao Md NPPES

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

KAREN XIAO MD (NPI 1063153088) is an individual emergency medicine provider in Pasadena, California, licensed in California (A207900) and active in the NPI registry since April 2022. She maintains a secondary practice location in Brooklyn.

NPPES Registry Identity

NPI1063153088

Entity TypeIndividualFemale

Primary Taxonomy207P00000X

Provider Legal NameKAREN XIAOCredential: MD

Location Address100 W CALIFORNIA BLVDPasadena, CA 91105-3010

Mailing AddressPo Box 60259Los Angeles, CA 90060-0259 · (877) 346-2211

Phone(855) 522-7898

Sole ProprietorNo

Enumeration DateApril 5, 2022

Last NPPES UpdateJuly 7, 20262 updates tracked since enumeration

NPPES CertifiedJuly 7, 2026

✔ NPI 1063153088 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207P00000X

License✔ Licensed in CA · A207900

Definition

An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

100 W CALIFORNIA BLVD, Pasadena, CA 91105

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