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

Dr. Mary Josephine Hendrickson, PHD

Individual provider Psychologist · NPI 1699755561

Dr. Mary Josephine Hendrickson, PHD is a Clinical Psychologist in Issaquah, Washington. Qualified in 1997, 29 years ago. Practices with Western Psychological and Counseling Services LLC, a 332-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Washington.

Years since qualifying
29
Licensed in
WA
In the registry since
2006
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

22500 SE 64th Pl Ste 230
Issaquah, WA 98027-8111
Phone: (425) 409-6414
Fax: (425) 409-6618
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence PY00002719 (WA)

Record details

NPI number1699755561
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorNo
NPI enumeratedJanuary 18, 2006
Last updated in NPPESOctober 3, 2025
Certification dateOctober 3, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1997 (29 years in practice)
Group practice Western Psychological And Counseling Services Llc — 332 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Issaquah