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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

KATHRYN WIESENDANGER YALE
NPI 1649914078
Emergency Medicine in Palo Alto, CA

Active since April 22, 2022
900 WELCH RD STE 350, PALO ALTO, CA 94304(650) 723-9215 Get Directions Write a Review

NPPES record last updated: August 10, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Aug 10, 2026, Apr 25, 2022, Apr 22, 2022 (3 updates tracked since 2022).

About Kathryn Wiesendanger Yale NPPES

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

KATHRYN WIESENDANGER YALE (NPI 1649914078) is an individual emergency medicine provider in Palo Alto, California, licensed in California (A197298) and active in the NPI registry since April 2022.

NPPES Registry Identity

NPI1649914078
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameKATHRYN WIESENDANGER YALE
Location Address900 WELCH RD STE 350Palo Alto, CA 94304-1807
Mailing Address900 Welch Rd Ste 350Palo Alto, CA 94304-1807
Phone(650) 723-9215
Sole ProprietorNo
Enumeration DateApril 22, 2022
Last NPPES UpdateAugust 10, 20263 updates tracked since enumeration
NPPES CertifiedAugust 10, 2026
✔ NPI 1649914078 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in CA · A197298
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.
900 WELCH RD STE 350, Palo Alto, CA 94304
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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.

THAMANNA NISHATH
Student in an Organized Health Care Education/Training Program
900 WELCH RD STE 350
PALO ALTO, CA 94304
Santa Clara County (650) 723-6576
PETER DAVIS-ALLEN MD
Emergency Medicine
900 WELCH RD STE 350
PALO ALTO, CA 94304
Santa Clara County (650) 723-6576
MS. URSULA DEAN BSN, RN, MSN, NP
Nurse Practitioner (Family)
900 WELCH RD STE 350
PALO ALTO, CA 94304
Santa Clara County (650) 724-3254
BRENDA IRENE CASTOLO AGACNP-BC
Nurse Practitioner
900 WELCH RD STE 350
PALO ALTO, CA 94304
Santa Clara County (650) 723-6576
THOMAS YAN
Student in an Organized Health Care Education/Training Program
900 WELCH RD STE 350
PALO ALTO, CA 94304
Santa Clara County (650) 723-9215
SAMANTHA IZUNO MD
Emergency Medicine
900 WELCH RD STE 350
PALO ALTO, CA 94304
Santa Clara County (650) 723-6576
GABRIELA FUENTES
Student in an Organized Health Care Education/Training Program
900 WELCH RD STE 350
PALO ALTO, CA 94304
Santa Clara County (650) 723-6576
JACOB ANEES RAZZOUK
Student in an Organized Health Care Education/Training Program
900 WELCH RD STE 350
PALO ALTO, CA 94304
Santa Clara County (909) 633-8143

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 Kathryn Wiesendanger Yale's NPI number?

The NPI number for Kathryn Wiesendanger Yale is 1649914078. It was assigned to this individual provider in the NPPES registry on April 22, 2022.

Where is Kathryn Wiesendanger Yale located?

Kathryn Wiesendanger Yale practices at 900 Welch Rd Ste 350, Palo Alto, CA 94304. The listed phone number is (650) 723-9215.

What is Kathryn Wiesendanger Yale's specialty?

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

When was this NPI record last updated?

The NPPES record for Kathryn Wiesendanger Yale was last updated on August 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.