Quick answers
- Where does Greg J. Nelson see patients?
- Medicare's clinician data lists 1 practice location in Van Nuys, CA. Call before your visit to confirm the address.
- What is Greg J. Nelson's specialty?
- Medicare lists Dermatology as the primary specialty.
- Does Greg J. Nelson accept Medicare assignment?
- Yes. Medicare's clinician data says Greg J. Nelson 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 Greg J. Nelson?
- (818) 785-8707, as listed in official Medicare / NPI Registry data.
- What is Greg J. Nelson's NPI number?
- 1558496950. 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 Greg J. Nelson is enrolled with Medicare (CMS data updated 2026-10-02).
- 15243 Vanowen St, Suite 212Van Nuys, CA 91405 (818) 785‑8707
Specialties
- Dermatologyprimary
Other dermatologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Geffen School Of Medicine |
| Graduation year | 1988 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1558496950 |
| 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