Quick answers
- Which hospitals does Larissa H. Chartrand work at?
- Medicare's official clinician data lists Larissa H. Chartrand at 1 hospital: NorthBay Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Larissa H. Chartrand see patients?
- Medicare's clinician data lists 3 practice locations, including Dixon, CA and Vacaville, CA. Call before your visit to confirm the address.
- What is Larissa H. Chartrand's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Larissa H. Chartrand accept Medicare assignment?
- Yes. Medicare's clinician data says Larissa H. Chartrand accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does Larissa H. Chartrand offer telehealth?
- Medicare's clinician data says Larissa H. Chartrand offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Larissa H. Chartrand?
- (707) 646-5500, as listed in official Medicare / NPI Registry data.
- What is Larissa H. Chartrand's NPI number?
- 1851715627. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Larissa H. Chartrand works
Medicare's Facility Affiliation Data lists Larissa H. Chartrand at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- NorthBay Medical CenterFairfield, CA · Acute Care Hospital · CCN 050367
Practice locations
Addresses where Larissa H. Chartrand is enrolled with Medicare (CMS data updated 2026-10-02).
- 1305 Stratford AveDixon, CA 95620 (707) 646‑5500
- 421 Nut Tree RdVacaville, CA 95687 (707) 624‑7500
- 4520 Business Ctr Dr, Suite 200Vacaville, CA 94534 (707) 646‑5500
Group practices
Medicare enrollment lists Larissa H. Chartrand as a member of these groups (CMS data updated 2026-10-02).
- NorthBay Physicians Surgery Center, LLC324 clinicians in the group
- NorthBay Health Medical Foundation213 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2014 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1851715627 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians