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

Dr. Christopher G Ahnallen

Individual provider Clinical Psychologist · NPI 1558429563

Dr. Christopher G Ahnallen is a Clinical Psychologist in Boston, Massachusetts. Qualified in 2006, 20 years ago. Practices with Brigham and Womens Physicians Organization Inc, a 2,916-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
20
Licensed in
MA
In the registry since
2006
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Practice location Address checks out

1153 Centre St
Boston, MA 02130-3446
Phone: (617) 277-8107
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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 9013 (MA)

Record details

NPI number1558429563
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedDecember 4, 2006
Last updated in NPPESJuly 14, 2016
Mailing address1153 Centre St, Boston, MA 02130-3446

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 2006 (20 years in practice)
Group practice Brigham And Womens Physicians Organization Inc — 2916 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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