Quick answers
- Which hospitals does Melissa B. Millar work at?
- Medicare's official clinician data lists Melissa B. Millar at 3 hospitals: John Muir Medical Center - Concord Campus, John Muir Medical Center - Walnut Creek Campus and UC San Diego Health Hillcrest - Hillcrest Med Ctr. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Melissa B. Millar see patients?
- Medicare's clinician data lists 4 practice locations, including Walnut Creek, CA, San Diego, CA and Fremont, CA. Call before your visit to confirm the address.
- What is Melissa B. Millar's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Melissa B. Millar accept Medicare assignment?
- Yes. Medicare's clinician data says Melissa B. Millar 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 B. Millar?
- (925) 939-3000, as listed in official Medicare / NPI Registry data.
- What is Melissa B. Millar's NPI number?
- 1417361981. 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 B. Millar works
Medicare's Facility Affiliation Data lists Melissa B. Millar at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- John Muir Medical Center - Concord CampusConcord, CA · Acute Care Hospital · CCN 050496
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA · Acute Care Hospital · CCN 050180
- UC San Diego Health Hillcrest - Hillcrest Med CtrSan Diego, CA · Acute Care Hospital · CCN 050025
Practice locations
Addresses where Melissa B. Millar is enrolled with Medicare (CMS data updated 2026-10-02).
- 1601 Ygnacio Valley RdWalnut Creek, CA 94598 (925) 939‑3000
- 200 W Arbor DrSan Diego, CA 92103 (858) 249‑6753
- 2000 Mowry AveFremont, CA 94538 (510) 797‑1111
- 2540 E StConcord, CA 94520 (925) 682‑8200
Group practices
Medicare enrollment lists Melissa B. Millar as a member of these groups (CMS data updated 2026-10-02).
- Regents of the University of California2,089 clinicians in the group
- Cep America - Anesthesia PC849 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Walnut Creek
Clinicians with the same Medicare primary specialty in Walnut Creek, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Saint Louis University School Of Medicine |
| Graduation year | 2014 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1417361981 |
| 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