Quick answers
- Where does Jason S. Seidman see patients?
- Medicare's clinician data lists 2 practice locations, including El Cajon, CA and San Diego, CA. Call before your visit to confirm the address.
- What is Jason S. Seidman's specialty?
- Medicare lists Dermatology as the primary specialty.
- Does Jason S. Seidman accept Medicare assignment?
- Yes. Medicare's clinician data says Jason S. Seidman 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 Jason S. Seidman?
- (619) 579-5115, as listed in official Medicare / NPI Registry data.
- What is Jason S. Seidman's NPI number?
- 1295312254. 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 Jason S. Seidman is enrolled with Medicare (CMS data updated 2026-10-02).
- 222 W Madison AveEl Cajon, CA 92020 (619) 579‑5115
- 5222 Balboa Ave, Fl 5San Diego, CA 92117 (619) 267‑8303
Group practices
Medicare enrollment lists Jason S. Seidman as a member of this group (CMS data updated 2026-10-02).
- William F Resh MD Skin and Skin Cancer Medical Group of San Diego Inc19 clinicians in the group
Specialties
- Dermatologyprimary
Other dermatologists in El Cajon
Clinicians with the same Medicare primary specialty in El Cajon, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Diego School Of Medicine |
| Graduation year | 2021 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1295312254 |
| 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