Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Jillian Tessier, PHD

Individual provider Psychologist · NPI 1093494544

Dr. Jillian Tessier, PHD is a Clinical Psychologist in Mill Valley, California. Qualified in 2021, 5 years ago. Practices with Kandm Neuropsychology, a Psychology Corporation, a 12-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
5
Licensed in
CA
In the registry since
2023
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

100 Shoreline Hwy Bldg B Ste 100
Mill Valley, CA 94941
Phone: (415) 877-4408
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence PSY34187 (CA)

Record details

NPI number1093494544
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorYes
NPI enumeratedJuly 12, 2023
Last updated in NPPESJuly 12, 2023
Certification dateJune 2, 2023

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 2021 (5 years in practice)
Group practice Kandm Neuropsychology, A Psychology Corporation — 12 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients134
Services billed 1,852 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Kandm Neuropsychology, a Psychology Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Mill Valley