Quick answers
- Which hospitals does Mark Erwin S. Lopez work at?
- Medicare's official clinician data lists Mark Erwin S. Lopez at 1 hospital: University of California Davis Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark Erwin S. Lopez see patients?
- Medicare's clinician data lists 1 practice location in Sacramento, CA. Call before your visit to confirm the address.
- What is Mark Erwin S. Lopez's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Mark Erwin S. Lopez accept Medicare assignment?
- Yes. Medicare's clinician data says Mark Erwin S. Lopez 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 Mark Erwin S. Lopez?
- (916) 734-3913, as listed in official Medicare / NPI Registry data.
- What is Mark Erwin S. Lopez's NPI number?
- 1649674797. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark Erwin S. Lopez works
Medicare's Facility Affiliation Data lists Mark Erwin S. Lopez at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- University of California Davis Medical CenterSacramento, CA · Acute Care Hospital · CCN 050599
Practice locations
Addresses where Mark Erwin S. Lopez is enrolled with Medicare (CMS data updated 2026-10-02).
- 2230 Stockton BlvdSacramento, CA 95817 (916) 734‑3913
Group practices
Medicare enrollment lists Mark Erwin S. Lopez as a member of this group (CMS data updated 2026-10-02).
- Regents of the Univ of Ca1,584 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Sacramento
Clinicians with the same Medicare primary specialty in Sacramento, CA — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2014 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1649674797 |
| 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