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

Dr. Henry Hans Bjorn Ahlstrom, PHD

Individual provider Clinical Psychologist · NPI 1619945870

Dr. Henry Hans Bjorn Ahlstrom, PHD is a Clinical Psychologist in Atascadero, California. Qualified in 1991, 35 years ago. Accepts Medicare assignment. Licensed in California.

Years since qualifying
35
Licensed in
CA
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.

See every abbreviation used in this directory →

Practice location Address checks out

10333 El Camino Real
Atascadero, CA 93422-5808
Phone: (805) 468-2000
Fax: (805) 468-6011
Show map & directions

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

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence PSY14420 (CA)

Record details

NPI number1619945870
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedMarch 14, 2006
Last updated in NPPESJuly 15, 2013

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1991 (35 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Atascadero