Quick answers
- Where does Mark J. Slepin see patients?
- Medicare's clinician data lists 11 practice locations, including Wilmington, DE, Charlotte, NC and Bozeman, MT. Call before your visit to confirm the address.
- What is Mark J. Slepin's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Mark J. Slepin accept Medicare assignment?
- Yes. Medicare's clinician data says Mark J. Slepin 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.
- Does Mark J. Slepin offer telehealth?
- Medicare's clinician data says Mark J. Slepin offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Mark J. Slepin?
- (833) 968-7675, as listed in official Medicare / NPI Registry data.
- What is Mark J. Slepin's NPI number?
- 1417063439. 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 Mark J. Slepin is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 11; the Medicare profile lists all.
- 1000 N W St, Suite 1200Wilmington, DE 19801 (833) 968‑7675
- 13600 S Tryon StCharlotte, NC 28278 (833) 968‑7675
- 233 E Main St, Suite 300 Office No. 312Bozeman, MT 59715 (833) 968‑7675
- 2450 Colorado Ave, Suite 100eSanta Monica, CA 90404 (864) 420‑8700
- 25 Woods Lake Rd, Suite 102Greenville, SC 29607 (833) 968‑7675
Group practices
Medicare enrollment lists Mark J. Slepin as a member of this group (CMS data updated 2026-10-02).
- Medstreamline LLC5 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Wilmington
Clinicians with the same Medicare primary specialty in Wilmington, DE — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1983 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1417063439 |
| 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