Quick answers
- Where does Mark D. Pennington see patients?
- Medicare's clinician data lists 2 practice locations, including Avon, CT and Wethersfield, CT. Call before your visit to confirm the address.
- What is Mark D. Pennington's specialty?
- Medicare lists Dermatology as the primary specialty.
- Does Mark D. Pennington accept Medicare assignment?
- Yes. Medicare's clinician data says Mark D. Pennington 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 Mark D. Pennington?
- (860) 258-3480, as listed in official Medicare / NPI Registry data.
- What is Mark D. Pennington's NPI number?
- 1720080476. 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 D. Pennington is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 Simsbury RdAvon, CT 06001 (860) 258‑3480
- 1260 Silas Deane HwyWethersfield, CT 06109 (860) 832‑4666
Group practices
Medicare enrollment lists Mark D. Pennington as a member of this group (CMS data updated 2026-10-02).
- Starling Physicians, PLLC283 clinicians in the group
Specialties
- Dermatologyprimary
Other dermatologists in Avon
Clinicians with the same Medicare primary specialty in Avon, CT — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Rutgers New Jersey Medical School |
| Graduation year | 1994 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1720080476 |
| 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