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

Mrs. Sarah Elizabeth Treusdell, LMFT

Individual provider Mental Health Counselor · NPI 1083733380

Mrs. Sarah Elizabeth Treusdell, LMFT is a Marriage and Family Therapist in Lancaster, California. Qualified in 2005, 21 years ago. Practices with Southern California Permanente Medical Group, an 11,242-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
21
Licensed in
CA
In the registry since
2007
Specialties on file
3
What do these letters mean?
LMFT — Licensed Marriage and Family Therapist
A therapist licensed to treat couples and families.

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Practice location Address checks out

44444 20th St W
Lancaster, CA 93534-2714
Phone: (661) 951-0070
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Marriage & Family Therapist (primary) Taxonomy 106H00000X · Licence MFC53206 (CA)
Mental Health Counselor Taxonomy 101YM0800X · Licence IMF 67972 (CA)
Mental Health Counselor Taxonomy 101YM0800X · Licence 49182 (CA)

Record details

NPI number1083733380
Entity typeIndividual (Type 1)
GenderFemale
Credentials LMFT
Sole proprietorYes
NPI enumeratedMarch 28, 2007
Last updated in NPPESDecember 7, 2021
Certification dateDecember 7, 2021

Medicare enrollment

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

Medicare specialtyMARRIAGE AND FAMILY THERAPIST
Medical schoolOTHER
Graduated 2005 (21 years in practice)
Group practice Southern California Permanente Medical Group — 11242 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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