Jillian Tessier, PhD
- Medicare patients, 2026
- 134
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2023
- Practice address
- 100 Shoreline Hwy Suite 386 Suite 386, Mill Valley, CA 94941
- Practice phone
- Call (415) 877-4408
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
California Brain Health Center
Behavioral health practice · Mill Valley, California
Find Jillian Tessier's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Jillian Tessier is a psychologist in Mill Valley, California
Jillian Tessier practices at California Brain Health Center in Mill Valley, California.
Jillian Tessier's NPI, 1093494544, was assigned on July 12, 2023. Jillian Tessier holds California license PSY34187.
- NPI
- 1093494544NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032570064
- NPI enumeration date
- July 12, 2023
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (415) 877-4408
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Jillian Tessier practices at California Brain Health Center in Mill Valley, California
Jillian Tessier's primary practice is California Brain Health Center, at 100 Shoreline Hwy Suite 386 Suite 386, Mill Valley, CA 94941. The practice phone is (415) 877-4408.
- California Brain Health Center100 Shoreline Hwy Suite 386 Suite 386, Mill Valley, CA 94941Phone(415) 877-4408
Source: Dmand AI Affiliation Data
Jillian Tessier is affiliated with 1 site of care and 1 medical group
Jillian Tessier's primary practice is California Brain Health Center in Mill Valley, California. The medical group on file is California Brain Health Center.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Jillian Tessier's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Jillian Tessier practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| California Brain Health Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Jillian Tessier is one of 1,724 psychologists in California
Psychologist is Jillian Tessier's primary specialty in the NPI Registry, under taxonomy code 103T00000X. Jillian Tessier is licensed in California.
Specialties and state licenses
- Psychologist, CaliforniaPrimary
Psychologists near Jillian Tessier
Counts of psychologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Jillian Tessier treated 134 Medicare patients in 2026, average age 76
CMS counts 134 Medicare patients who saw Jillian Tessier in 2026. The largest group is 75 to 84, with 60 patients. 75% of them have high cholesterol, and 61% have high blood pressure. 16% are also on Medicaid. Their average risk score is 1.12, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Jillian Tessier's median patient age at 74, with 54% women.
Jillian Tessier's Medicare patients by age, 2026
CMS leaves out age groups with fewer than 11 patients.
Jillian Tessier's Medicare patients by sex, 2026
- Women7455%
- Men6045%
Chronic conditions among Jillian Tessier's Medicare patients, 2026
- High cholesterol75%
- High blood pressure61%
- Arthritis47%
- Mood disorders46%
- Depression41%
- Alzheimer's and dementia40%
- Anxiety38%
- Stroke or TIA28%
Share of Medicare patients with each condition. A patient can have several.
Jillian Tessier's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2026 data
Jillian Tessier offers telehealth to Medicare patients
Jillian Tessier accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Jillian Tessier as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Sources for Jillian Tessier's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Jillian Tessier
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Jillian Tessier's NPI number?
Jillian Tessier's NPI number is 1093494544. It was assigned on July 12, 2023, and it is active in the NPI Registry.
What does Jillian Tessier specialize in?
Jillian Tessier is a psychologist in Mill Valley, California. The primary specialty in the NPI Registry is Psychologist (taxonomy code 103T00000X).
Where does Jillian Tessier practice?
Jillian Tessier practices at 100 Shoreline Hwy Suite 386 Suite 386, Mill Valley, CA 94941. Jillian Tessier's primary practice is California Brain Health Center in Mill Valley, California.
What is Jillian Tessier's office phone number?
The practice phone on file for Jillian Tessier is (415) 877-4408. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Jillian Tessier's email address?
Dmand AI checks professional and personal email addresses for Jillian Tessier through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is Jillian Tessier's medical license number?
Jillian Tessier holds California license PSY34187.
What medical group is Jillian Tessier part of?
Jillian Tessier is linked to California Brain Health Center.
Who does Jillian Tessier practice with?
Dmand AI links 14 HCPs to Jillian Tessier's primary medical group, 2 of them psychologists. A free account lists them, with verified contacts.
Does Jillian Tessier accept Medicare?
Yes. CMS lists Jillian Tessier as accepting Medicare assignment.
Does Jillian Tessier offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Jillian Tessier as offering telehealth services.
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How many Medicare patients does Jillian Tessier see?
CMS counts 134 Medicare patients who saw Jillian Tessier in 2026, with an average age of 76.
How long has Jillian Tessier been practicing?
Jillian Tessier graduated from medical school in 2021, 5 years ago.
What EHR does Jillian Tessier's practice use?
Dmand AI tracks the EHR system at California Brain Health Center. The vendor and product are available with a free Dmand AI account.
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