Quick answers
- Which hospitals does John Alexander work at?
- Medicare's official clinician data lists John Alexander at 1 hospital: University of MD Baltimore Washington Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John Alexander see patients?
- Medicare's clinician data lists 3 practice locations, including Frederick, MD, Glen Burnie, MD and Charles Town, WV. Call before your visit to confirm the address.
- What is John Alexander's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does John Alexander accept Medicare assignment?
- Yes. Medicare's clinician data says John Alexander 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 John Alexander?
- (301) 662-8700, as listed in official Medicare / NPI Registry data.
- What is John Alexander's NPI number?
- 1386090751. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John Alexander works
Medicare's Facility Affiliation Data lists John Alexander at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- University of MD Baltimore Washington Medical CenterGlen Burnie, MD · Acute Care Hospital · CCN 210043
Practice locations
Addresses where John Alexander is enrolled with Medicare (CMS data updated 2026-10-02).
- 200 E 16th StFrederick, MD 21701 (301) 662‑8700
- 301 Hospital DrGlen Burnie, MD 21061 (443) 949‑0814
- 50 Mulberry Tree StCharles Town, WV 25414 (304) 724‑1101
Group practices
Medicare enrollment lists John Alexander as a member of these groups (CMS data updated 2026-10-02).
- Comprehensive Rehab Consultants PLLC257 clinicians in the group
- Mdics at BWMC LLC74 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Frederick
Clinicians with the same Medicare primary specialty in Frederick, MD — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1386090751 |
| 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