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

Mr. Alan L Sieber, PHD

Individual provider Clinical Psychologist · NPI 1043252265

Mr. Alan L Sieber, PHD is a Clinical Psychologist in Lowell, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2006.

Licensed in
MA
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

99 Church St
Lowell, MA 01852-2621
Phone: (978) 458-6282
Fax: (978) 441-9826
Show map & directions

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

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 2941 (MA)

Record details

NPI number1043252265
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedJune 12, 2006
Last updated in NPPESJuly 13, 2026
Mailing address37 Pickman Dr, Bedford, MA 01730-1009

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