Quick answers
- Which hospitals does Eric J. Lopez work at?
- Medicare's official clinician data lists Eric J. Lopez at 1 hospital: UCSF Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Eric J. Lopez see patients?
- Medicare's clinician data lists 4 practice locations, including Walnut Creek, CA, Sacramento, CA and San Francisco, CA. Call before your visit to confirm the address.
- What is Eric J. Lopez's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does Eric J. Lopez accept Medicare assignment?
- Medicare's clinician data says Eric J. Lopez may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is Eric J. Lopez's NPI number?
- 1477139574. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Eric J. Lopez works
Medicare's Facility Affiliation Data lists Eric J. Lopez at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- UCSF Medical CenterSan Francisco, CA · Acute Care Hospital · CCN 050454
Practice locations
Addresses where Eric J. Lopez is enrolled with Medicare (CMS data updated 2026-10-02).
- 2125 Oak Grove Rd, Suite 200Walnut Creek, CA 94598
- 3500 Ridgewood WaySacramento, CA 95821
- 513 Parnassus AveSan Francisco, CA 94143
- 590 Minnesota StSan Francisco, CA 94107
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Walnut Creek
Clinicians with the same Medicare primary specialty in Walnut Creek, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Francisco School Of Medicine |
| Graduation year | 2021 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1477139574 |
| 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