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

Dr. Helen Avigan, PHD

Individual provider Clinical Psychologist · NPI 1649864299

Dr. Helen Avigan, PHD is a Clinical Psychologist in Adelphi, Maryland. Practices as a sole proprietor. Licensed in Maryland.

Licensed in
MD
In the registry since
2021
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

8908 Riggs Rd Fl 3
Adelphi, MD 20783-1632
Phone: (301) 431-5630
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 01921 (MD)

Record details

NPI number1649864299
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorYes
NPI enumeratedFebruary 24, 2021
Last updated in NPPESFebruary 24, 2021
Certification dateFebruary 22, 2021
Mailing address8908 Riggs Rd Fl 3, Adelphi, MD 20783-1632

Other providers in Adelphi