Quick answers
- Where does Nicholas B. Castner see patients?
- Medicare's clinician data lists 2 practice locations, including St Petersburg, FL and Seminole, FL. Call before your visit to confirm the address.
- What is Nicholas B. Castner's specialty?
- Medicare lists Dermatology as the primary specialty, and also Micrographic Dermatologic Surgery (MDS).
- Does Nicholas B. Castner accept Medicare assignment?
- Yes. Medicare's clinician data says Nicholas B. Castner 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 Nicholas B. Castner?
- (813) 321-1786, as listed in official Medicare / NPI Registry data.
- What is Nicholas B. Castner's NPI number?
- 1992201875. 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 Nicholas B. Castner is enrolled with Medicare (CMS data updated 2026-10-02).
- 5200 Seminole BlvdSt Petersburg, FL 33708 (813) 321‑1786
- 8787 Bryan Dairy Rd, Suite 360Seminole, FL 33777 (813) 321‑1786
Group practices
Medicare enrollment lists Nicholas B. Castner as a member of this group (CMS data updated 2026-10-02).
- Suncoast Skin Solutions106 clinicians in the group
Specialties
Other dermatologists in St Petersburg
Clinicians with the same Medicare primary specialty in St Petersburg, FL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of South Florida College Of Medicine |
| Graduation year | 2018 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1992201875 |
| 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