Quick answers
- Where does Eric R. Hahn see patients?
- Medicare's clinician data lists 2 practice locations, including Fremont, CA and Richmond, CA. Call before your visit to confirm the address.
- What is Eric R. Hahn's specialty?
- Medicare lists General Surgery as the primary specialty.
- Does Eric R. Hahn accept Medicare assignment?
- Yes. Medicare's clinician data says Eric R. Hahn 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 Eric R. Hahn?
- (510) 248-3000, as listed in official Medicare / NPI Registry data.
- What is Eric R. Hahn's NPI number?
- 1518031129. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Eric R. Hahn is enrolled with Medicare (CMS data updated 2026-10-02).
- 39400 Paseo Padre PkwyFremont, CA 94538 (510) 248‑3000
- 901 Nevin AveRichmond, CA 94801 (510) 307‑1500
Group practices
Medicare enrollment lists Eric R. Hahn as a member of this group (CMS data updated 2026-10-02).
- Permanente Medical Group Inc10,996 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Fremont
Clinicians with the same Medicare primary specialty in Fremont, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Michigan Medical School |
| Graduation year | 1995 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1518031129 |
| 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
- 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