Quick answers
- Does Sean T. Gunning accept Medicare assignment?
- Yes. Medicare's clinician data says Sean T. Gunning accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Sean T. Gunning see?
- In 2024, CMS data shows 1,430 Original Medicare patients and 7,787 services for Sean T. Gunning. This counts Original Medicare only and measures volume, not quality.
- What is Sean T. Gunning's NPI number?
- 1538220504. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Sean T. Gunning, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 1,430 |
|---|---|
| Services billed to Medicare | 7,787 |
| Different services or procedures | 52 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Destruction of precancer skin growth, 2-14 growths (17003)2,435 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)1,323 services
- Destruction of precancer skin growth, 1 growth (17000)719 services
- Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)562 services
- Biopsy of related skin growth, first growth (11102)503 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis47%
- Diabetes33%
- Ischemic heart disease24%
- Depression20%
Practice locations
Addresses where Sean T. Gunning is enrolled with Medicare (CMS data updated October 2, 2026).
- 1838 Greene Tree Rd, Suite 121Pikesville, MD 21208 (443) 471‑0460
Group practices
Medicare enrollment lists Sean T. Gunning as a member of this group (CMS data updated October 2, 2026).
- Clinical Associates P A37 clinicians in the group
Specialties
- Dermatologyprimary
Other dermatologists in Maryland
Clinicians with the same Medicare primary specialty in Maryland — not a recommendation.
Other clinicians in Clinical Associates P A
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York University School Of Medicine |
| Graduation year | 1999 (27 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1538220504 |
| 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 October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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