Quick answers
- Which hospitals does Melissa L. Vander Wal work at?
- Medicare's official clinician data lists Melissa L. Vander Wal at 1 hospital: Kaiser Foundation Hospital and Rehab Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Melissa L. Vander Wal see patients?
- Medicare's clinician data lists 1 practice location in Vallejo, CA. Call before your visit to confirm the address.
- What is Melissa L. Vander Wal's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Melissa L. Vander Wal accept Medicare assignment?
- Yes. Medicare's clinician data says Melissa L. Vander Wal 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.
- What is the phone number for Melissa L. Vander Wal?
- (707) 651-1000, as listed in official Medicare / NPI Registry data.
- What is Melissa L. Vander Wal's NPI number?
- 1154692804. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Melissa L. Vander Wal works
Medicare's Facility Affiliation Data lists Melissa L. Vander Wal at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Kaiser Foundation Hospital and Rehab CenterVallejo, CA · Acute Care Hospital · CCN 050073
Practice locations
Addresses where Melissa L. Vander Wal is enrolled with Medicare (CMS data updated 2026-10-02).
- 975 Sereno DrVallejo, CA 94589 (707) 651‑1000
Group practices
Medicare enrollment lists Melissa L. Vander Wal as a member of this group (CMS data updated 2026-10-02).
- Permanente Medical Group Inc10,996 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Vallejo
Clinicians with the same Medicare primary specialty in Vallejo, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Southern California Keck School Of Medicine |
| Graduation year | 2010 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1154692804 |
| 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