Quick answers
- Which hospitals does Patrick M. Mahon work at?
- Medicare's official clinician data lists Patrick M. Mahon at 1 hospital: Sinai Hospital of Baltimore. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Patrick M. Mahon see patients?
- Medicare's clinician data lists 1 practice location in Baltimore, MD. Call before your visit to confirm the address.
- What is Patrick M. Mahon's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Patrick M. Mahon accept Medicare assignment?
- Medicare's clinician data says Patrick M. Mahon may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Patrick M. Mahon?
- (410) 601-0900, as listed in official Medicare / NPI Registry data.
- What is Patrick M. Mahon's NPI number?
- 1124610928. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Patrick M. Mahon works
Medicare's Facility Affiliation Data lists Patrick M. Mahon at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Sinai Hospital of BaltimoreBaltimore, MD · Acute Care Hospital · CCN 210012
Practice locations
Addresses where Patrick M. Mahon is enrolled with Medicare (CMS data updated 2026-10-02).
- 2435 W Belvedere Ave, 35 Sinai Cardiac SurgeryBaltimore, MD 21215 (410) 601‑0900
Group practices
Medicare enrollment lists Patrick M. Mahon as a member of this group (CMS data updated 2026-10-02).
- Sinai Hospital of Baltimore, Inc380 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Baltimore
Clinicians with the same Medicare primary specialty in Baltimore, MD — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2020 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1124610928 |
| 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