Quick answers
- Where does Stefanie Altmann see patients?
- Medicare's clinician data lists 2 practice locations, including Walnut Creek, CA and Pleasanton, CA. Call before your visit to confirm the address.
- What is Stefanie Altmann's specialty?
- Medicare lists Dermatology as the primary specialty.
- Does Stefanie Altmann accept Medicare assignment?
- Yes. Medicare's clinician data says Stefanie Altmann 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 Stefanie Altmann?
- (925) 932-3800, as listed in official Medicare / NPI Registry data.
- What is Stefanie Altmann's NPI number?
- 1912494188. 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 Stefanie Altmann is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 Pringle Ave, Suite 425Walnut Creek, CA 94596 (925) 932‑3800
- 5575 W Las Positas Blvd, Suite 220Pleasanton, CA 94588 (925) 416‑1122
Group practices
Medicare enrollment lists Stefanie Altmann as a member of this group (CMS data updated 2026-10-02).
- Berman Skin Institute Medical Group Inc22 clinicians in the group
Specialties
- Dermatologyprimary
Other dermatologists in Walnut Creek
Clinicians with the same Medicare primary specialty in Walnut Creek, CA — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2018 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1912494188 |
| 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