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

DARIUS BENJAMIN JONASCH
NPI 1164170197
Radiology - Diagnostic Radiology in Palo Alto, CA

Active since March 18, 2022
300 PASTEUR DR, PALO ALTO, CA 94305(650) 723-4000 Get Directions Write a Review

NPPES record last updated: August 14, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 14, 2026, Mar 25, 2023 (2 updates tracked since 2023).

About Darius Benjamin Jonasch NPPES

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

DARIUS BENJAMIN JONASCH (NPI 1164170197) is an individual diagnostic radiology provider in Palo Alto, California, licensed in California (PTL14640) and active in the NPI registry since March 2022.

NPPES Registry Identity

NPI1164170197
Entity TypeIndividualMale
Primary Taxonomy2085R0202X
Provider Legal NameDARIUS BENJAMIN JONASCH
Location Address300 PASTEUR DRPalo Alto, CA 94305-2200
Mailing Address300 Pasteur DrPalo Alto, CA 94304-2203
Sole ProprietorYes
Enumeration DateMarch 18, 2022
Last NPPES UpdateAugust 14, 20262 updates tracked since enumeration
NPPES CertifiedAugust 14, 2026
NPI 1164170197 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
License Licensed in CA · PTL14640
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
300 PASTEUR DR, Palo Alto, CA 94305

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.

Internal Medicine (Gastroenterology)
300 PASTEUR DR, ALWAY BUILD M211, MC 5187
STANFORD, CA 94305
Radiology (Vascular & Interventional Radiology)
300 PASTEUR DR
STANFORD, CA 94305
Psychiatry & Neurology (Psychiatry)
300 PASTEUR DR
STANFORD, CA 94305
Radiology (Diagnostic Radiology)
300 PASTEUR DR
STANFORD, CA 94305
Nurse Practitioner
300 PASTEUR DR
STANFORD, CA 94305
Neurological Surgery
300 PASTEUR DR
STANFORD, CA 94305
Pathology (Anatomic Pathology & Clinical Pathology)
300 PASTEUR DR, LANE 235
STANFORD, CA 94305
Internal Medicine (Critical Care Medicine)
300 PASTEUR DR
STANFORD, CA 94305

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 Darius Jonasch's NPI number?

The NPI number for Darius Jonasch is 1164170197. It was assigned to this individual provider in the NPPES registry on March 18, 2022.

Where is Darius Jonasch located?

Darius Jonasch practices at 300 Pasteur Dr, Palo Alto, CA 94305. The listed phone number is (650) 723-4000.

What is Darius Jonasch's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

When was this NPI record last updated?

The NPPES record for Darius Jonasch was last updated on August 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.