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DR. ELLEN BIERLEY MASSE M.D.
NPI 1922358308
Internal Medicine in Woodland Hills, CA

Active since September 13, 2012
20511 WELLS DR, WOODLAND HILLS, CA 91364(818) 800-8808(818) 912-6173 Get Directions Write a Review

NPPES record last updated: September 13, 2012. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Ellen Bierley Masse M.d. NPPES

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

DR. ELLEN BIERLEY MASSE M.D. (NPI 1922358308) is an individual internal medicine provider in Woodland Hills, California, licensed in California (A22230) and active in the NPI registry since September 2012.

NPPES Registry Identity

NPI1922358308
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. ELLEN BIERLEY MASSECredential: M.D.
Location Address20511 WELLS DRWoodland Hills, CA 91364-3433
Mailing Address20511 Wells DrWoodland Hills, CA 91364-3433 · (818) 800-8808 · Fax (818) 912-6173
Phone(818) 800-8808
Fax(818) 912-6173
Sole ProprietorYes
Enumeration DateSeptember 13, 2012
✔ NPI 1922358308 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 · A22230
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.
20511 WELLS DR, Woodland Hills, CA 91364
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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 Ellen Masse's NPI number?

The NPI number for Ellen Masse is 1922358308. It was assigned to this individual provider in the NPPES registry on September 13, 2012.

Where is Ellen Masse located?

Ellen Masse practices at 20511 Wells Dr, Woodland Hills, CA 91364. The listed phone number is (818) 800-8808.

What is Ellen Masse's specialty?

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

When was this NPI record last updated?

The NPPES record for Ellen Masse was last updated on September 13, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years 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.