Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Ellen Bierley Masse, MD

Individual provider Internal Medicine Physician · NPI 1922358308

Dr. Ellen Bierley Masse, MD is an Internal Medicine Physician in Woodland Hills, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2012
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

20511 Wells Dr
Woodland Hills, CA 91364-3433
Phone: (818) 800-8808
Fax: (818) 912-6173
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A22230 (CA)

Record details

NPI number1922358308
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedSeptember 13, 2012
Last updated in NPPESSeptember 13, 2012

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