Quick answers
- Which hospitals does Marlene M. Millen work at?
- Medicare's official clinician data lists Marlene M. Millen at 1 hospital: UC San Diego Health Hillcrest - Hillcrest Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Marlene M. Millen see patients?
- Medicare's clinician data lists 1 practice location in San Diego, CA. Call before your visit to confirm the address.
- What is Marlene M. Millen's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Marlene M. Millen accept Medicare assignment?
- Yes. Medicare's clinician data says Marlene M. Millen 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 Marlene M. Millen offer telehealth?
- Medicare's clinician data says Marlene M. Millen offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Marlene M. Millen?
- (858) 657-7000, as listed in official Medicare / NPI Registry data.
- What is Marlene M. Millen's NPI number?
- 1225101355. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marlene M. Millen works
Medicare's Facility Affiliation Data lists Marlene M. Millen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- UC San Diego Health Hillcrest - Hillcrest Medical CenterSan Diego, CA · Acute Care Hospital · CCN 050025
Practice locations
Addresses where Marlene M. Millen is enrolled with Medicare (CMS data updated 2026-10-02).
- 200 W Arbor DrSan Diego, CA 92103 (858) 657‑7000
Group practices
Medicare enrollment lists Marlene M. Millen as a member of this group (CMS data updated 2026-10-02).
- Regents of the University of California2,089 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in San Diego
Clinicians with the same Medicare primary specialty in San Diego, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Virginia School Of Medicine |
| Graduation year | 2001 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1225101355 |
| 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