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

Dr. Ann O Massion, MD

Individual provider Psychiatry Physician · NPI 1376517664

Dr. Ann O Massion, MD is a Psychiatry Physician in Del Mar, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

12835 Pointe Del Mar Way Ste One
Del Mar, CA 92014-3846
Phone: (858) 259-0599
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence A49598 (CA)

Record details

NPI number1376517664
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedFebruary 14, 2006
Last updated in NPPESOctober 15, 2015

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