JOSEPH DAVID JANIZEK MD, PHD
NPI 1689426058
Radiology - Diagnostic Radiology in Stanford, CA

Q: What is Joseph Janizek's NPI number?

The NPI number for Joseph Janizek is 1689426058. It was assigned to this individual provider in the NPPES registry on April 1, 2024.

Q: What is Joseph Janizek's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Joseph Janizek was last updated on June 28, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since April 01, 2024PECOS Enrolled

300 PASTEUR DR, STANFORD, CA 94305(650) 723-6855 Get Directions Write a Review

NPPES record last updated: June 28, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Jun 28, 2025, Apr 1, 2024 (2 updates tracked since 2024).

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About Joseph David Janizek Md, Phd NPPES

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

JOSEPH DAVID JANIZEK MD, PHD (NPI 1689426058) is an individual diagnostic radiology provider in Stanford, California, licensed in California (A203295) and active in the NPI registry since April 2024. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1689426058

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameJOSEPH DAVID JANIZEKCredential: MD, PHD

Location Address300 PASTEUR DRStanford, CA 94305-2200

Mailing Address300 Pasteur Dr Rm H-1330Stanford, CA 94305-2200 · (650) 723-6855

Phone(650) 723-6855

Sole ProprietorNo

Enumeration DateApril 1, 2024

Last NPPES UpdateJune 28, 20252 updates tracked since enumeration

NPPES CertifiedJune 28, 2025

✔ NPI 1689426058 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 · A203295

Definition

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

300 PASTEUR DR, Stanford, CA 94305

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Joseph David Janizek Md, Phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94305 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$106.47 typical visit price

range $70.37 – $206.04

Typical copayment $26.61 (range $17.59 – $51.51)

Most-billed visit code 99203

Established Patient

$86.56 typical visit price

range $23.96 – $169.60

Typical copayment $21.64 (range $5.99 – $42.40)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.