Quick answers
- Which hospitals does Alexander M. Hahn work at?
- Medicare's official clinician data lists Alexander M. Hahn at 4 hospitals: Umd Rehabilitation & Orthopaedic Institute, University of Maryland Medical Center, University of MD Capital Region Medical Center and University of MD Medical Center Midtown Campus. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Alexander M. Hahn see patients?
- Medicare's clinician data lists 4 practice locations, including Baltimore, MD and College Park, MD. Call before your visit to confirm the address.
- What is Alexander M. Hahn's specialty?
- Medicare lists Orthopedic Surgery as the primary specialty.
- Does Alexander M. Hahn accept Medicare assignment?
- Yes. Medicare's clinician data says Alexander M. Hahn 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 Alexander M. Hahn?
- (410) 328-6704, as listed in official Medicare / NPI Registry data.
- What is Alexander M. Hahn's NPI number?
- 1518329648. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Alexander M. Hahn works
Medicare's Facility Affiliation Data lists Alexander M. Hahn at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Umd Rehabilitation & Orthopaedic InstituteBaltimore, MD · Acute Care Hospital · CCN 210058
- University of Maryland Medical CenterBaltimore, MD · Acute Care Hospital · CCN 210002
- University of MD Capital Region Medical CenterUpper Marlboro, MD · Acute Care Hospital · CCN 210003
- University of MD Medical Center Midtown CampusBaltimore, MD · Acute Care Hospital · CCN 210038
Practice locations
Addresses where Alexander M. Hahn is enrolled with Medicare (CMS data updated 2026-10-02).
- 22 S Green StBaltimore, MD 21201 (410) 328‑6704
- 2200 Kernan DrBaltimore, MD 21207 (410) 328‑6704
- 2200 Kernan Dr, Suite 1154Baltimore, MD 21207
- 4321 Hartwick Rd, Suite 102College Park, MD 20740 (301) 403‑8811
Group practices
Medicare enrollment lists Alexander M. Hahn as a member of these groups (CMS data updated 2026-10-02).
- University of Maryland Orthopaedic Associates PA67 clinicians in the group
- University of Maryland Orthopaedic Trauma Associates, P.A.41 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Baltimore
Clinicians with the same Medicare primary specialty in Baltimore, MD — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Temple University School Of Medicine |
| Graduation year | 2016 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1518329648 |
| 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