JON F WILLEN M.D.
NPI 1124117593
Internal Medicine - Infectious Disease in West Hills, CA

Active since October 12, 2006
7230 MEDICAL CENTER DR, #203, WEST HILLS, CA 91307(818) 226-6811(818) 226-6810 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Jon F Willen M.d. NPPES

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

JON F WILLEN M.D. (NPI 1124117593) is an individual infectious disease provider in West Hills, California, licensed in California (C37027) and active in the NPI registry since October 2006.

NPPES Registry Identity

NPI1124117593
Entity TypeIndividualMale
Primary Taxonomy207RI0200X
Provider Legal NameJON F WILLENCredential: M.D.
Location Address7230 MEDICAL CENTER DR, #203West Hills, CA 91307-1907
Mailing Address7230 Medical Center Dr, #203West Hills, CA 91307-1907 · (818) 226-6811 · Fax (818) 226-6810
Fax(818) 226-6810
Sole ProprietorYes
Enumeration DateOctober 12, 2006
Last NPPES UpdateJuly 8, 2007
NPI 1124117593 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License Licensed in CA · C37027
Definition

An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.

7230 MEDICAL CENTER DR, West Hills, CA 91307

Other Identifiers 3

Medicare ID-Type UnspecifiedC37027CA
Medicare UPINA36457CA
Medicaid00C370231CA

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.

Acupuncturist
7230 MEDICAL CENTER DR
WEST HILLS, CA 91307
Non-Pharmacy Dispensing Site
7230 MEDICAL CENTER DR, SUITE 305
WEST HILLS, CA 91307
Internal Medicine (Obesity Medicine)
7230 MEDICAL CENTER DR, SUITE 302
WEST HILLS, CA 91307
Pharmacist
7230 MEDICAL CENTER DR
WEST HILLS, CA 91307
Anesthesiology
7230 MEDICAL CENTER DR, STE. #503
WEST HILLS, CA 91307
Family Medicine
7230 MEDICAL CENTER DR, SUITE 600
WEST HILLS, CA 91307
Obstetrics & Gynecology
7230 MEDICAL CENTER DR
WEST HILLS, CA 91307
Dietitian, Registered
7230 MEDICAL CENTER DR
WEST HILLS, CA 91307

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 Jon Willen's NPI number?

The NPI number for Jon Willen is 1124117593. It was assigned to this individual provider in the NPPES registry on October 12, 2006.

Where is Jon Willen located?

Jon Willen practices at 7230 Medical Center Dr #203, West Hills, CA 91307. The listed phone number is (818) 226-6811.

What is Jon Willen's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

When was this NPI record last updated?

The NPPES record for Jon Willen was last updated on July 8, 2007. NPI Profile syncs with the weekly NPPES data releases published by CMS.