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

Individual provider Clinical Psychologist · NPI 1952744401

Dr. Donald Ferguson Tweedie III is a Clinical Psychologist in Lancaster, California. Licensed in California. Registered with an NPI since 2013.

Licensed in
CA
In the registry since
2013
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Practice location Address checks out

44750 60th St W
Lancaster, CA 93536-7619
Phone: (916) 691-0346
Fax: (916) 691-0534
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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 PSY8090 (CA)

Record details

NPI number1952744401
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedApril 15, 2013
Last updated in NPPESApril 15, 2013

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