Quick answers
- Which hospitals does Peter L. Wisniewski work at?
- Medicare's official clinician data lists Peter L. Wisniewski at 2 hospitals: Calverthealth Medical Center and MedStar Saint Mary's Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Peter L. Wisniewski see patients?
- Medicare's clinician data lists 4 practice locations, including Dunkirk, MD, Prince Frederick, MD and Solomons, MD. Call before your visit to confirm the address.
- What is Peter L. Wisniewski's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Pulmonary Disease.
- Does Peter L. Wisniewski accept Medicare assignment?
- Yes. Medicare's clinician data says Peter L. Wisniewski 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 Peter L. Wisniewski offer telehealth?
- Medicare's clinician data says Peter L. Wisniewski offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Peter L. Wisniewski?
- (410) 535-2005, as listed in official Medicare / NPI Registry data.
- What is Peter L. Wisniewski's NPI number?
- 1922157593. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Peter L. Wisniewski works
Medicare's Facility Affiliation Data lists Peter L. Wisniewski at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Calverthealth Medical CenterPrince Frederick, MD · Acute Care Hospital · CCN 210039
- MedStar Saint Mary's HospitalLeonardtown, MD · Acute Care Hospital · CCN 210028
Practice locations
Addresses where Peter L. Wisniewski is enrolled with Medicare (CMS data updated 2026-10-02).
- 10845 Town Ctr Blvd, Suite 204Dunkirk, MD 20754
- 110 Hospital Rd, Suite 303Prince Frederick, MD 20678
- 14090 Hg Trueman Rd, Suite 2500Solomons, MD 20688
- 985 Prince Frederick Blvd, Suite 201Prince Frederick, MD 20678 (410) 535‑2005
Group practices
Medicare enrollment lists Peter L. Wisniewski as a member of this group (CMS data updated 2026-10-02).
- Calvert Internal Medicine Group, PA39 clinicians in the group
Specialties
- Internal Medicineprimary
- Pulmonary Diseasealso
Other internal medicine doctors in Dunkirk
Clinicians with the same Medicare primary specialty in Dunkirk, MD — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Maryland School Of Medicine |
| Graduation year | 1989 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1922157593 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- 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