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

Dr. Joann K. Thacker, PHD

Individual provider Psychologist · NPI 1205862406

Dr. Joann K. Thacker, PHD is a Clinical Psychologist in Silver Spring, Maryland. Qualified in 1981, 45 years ago. Practices with Psychogeriatric Services LLC, a 124-clinician group and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
45
Licensed in
MD
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

11215 Oak Leaf Dr Ste 108
Silver Spring, MD 20901-1317
Phone: (301) 593-1315
Fax: (301) 681-4699
Show map & directions

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

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 01659 (MD)

Record details

NPI number1205862406
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorNo
NPI enumeratedJune 23, 2006
Last updated in NPPESJuly 13, 2026
Mailing address11215 Oak Leaf Dr, Suite 108, Silver Spring, MD 20901-1317

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1981 (45 years in practice)
Group practice Psychogeriatric Services Llc — 124 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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