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

Dr. Abby Nicole Diehl, PHD

Individual provider Psychologist · NPI 1174923536

Dr. Abby Nicole Diehl, PHD is a Psychologist in Bethesda, Maryland. Licensed in Virginia. Registered with an NPI since 2014.

Licensed in
VA
In the registry since
2014
Specialties on file
3
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

4494 Palmer Rd N
Bethesda, MD 20814
Phone: (301) 295-4000
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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 0810005228 (VA)
Psychologist Taxonomy 103T00000X
Counseling Psychologist Taxonomy 103TC1900X

Record details

NPI number1174923536
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorNo
NPI enumeratedSeptember 3, 2014
Last updated in NPPESMay 2, 2024
Certification dateApril 22, 2024

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