DR. WILLIAM FRED LOOS M.D.
NPI 1417099425
Internal Medicine in Sylmar, CA

Q: What is William Loos's NPI number?

The NPI number for William Loos is 1417099425. It was assigned to this individual provider in the NPPES registry on February 13, 2007.

Q: What is William Loos's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

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

Active since February 13, 2007

14445 OLIVE VIEW DR, ROOM 6B119-H, SYLMAR, CA 91342(818) 364-3035(818) 364-3044 Get Directions Write a Review

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

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About Dr. William Fred Loos M.d. NPPES

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

DR. WILLIAM FRED LOOS M.D. (NPI 1417099425) is an individual internal medicine provider in Sylmar, California, licensed in California (G41787) and active in the NPI registry since February 2007.

NPPES Registry Identity

NPI1417099425

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameDR. WILLIAM FRED LOOSCredential: M.D.

Location Address14445 OLIVE VIEW DR, ROOM 6B119-HSylmar, CA 91342-1437

Mailing Address14445 Olive View Dr, Room 6b119-hSylmar, CA 91342-1437 · (818) 364-3035 · Fax (818) 364-3044

Phone(818) 364-3035

Fax(818) 364-3044

Sole ProprietorYes

Enumeration DateFebruary 13, 2007

Last NPPES UpdateJuly 8, 2007

✔ NPI 1417099425 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in CA · G41787

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

14445 OLIVE VIEW DR, Sylmar, CA 91342

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