Quick answers
- Which hospitals does Alexander Neilson work at?
- Medicare's official clinician data lists Alexander Neilson at 2 hospitals: Adventist Healthcare Shady Grove Medical Center and Adventist Healthcare White Oak Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Alexander Neilson see patients?
- Medicare's clinician data lists 1 practice location in Silver Spring, MD. Call before your visit to confirm the address.
- What is Alexander Neilson's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Alexander Neilson accept Medicare assignment?
- Yes. Medicare's clinician data says Alexander Neilson 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 Neilson?
- (301) 754-7000, as listed in official Medicare / NPI Registry data.
- What is Alexander Neilson's NPI number?
- 1316506728. 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 Neilson works
Medicare's Facility Affiliation Data lists Alexander Neilson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Adventist Healthcare Shady Grove Medical CenterRockville, MD · Acute Care Hospital · CCN 210057
- Adventist Healthcare White Oak Medical CenterSilver Spring, MD · Acute Care Hospital · CCN 210016
Practice locations
Addresses where Alexander Neilson is enrolled with Medicare (CMS data updated 2026-10-02).
- 1500 Forest Glen RdSilver Spring, MD 20910 (301) 754‑7000
Group practices
Medicare enrollment lists Alexander Neilson as a member of this group (CMS data updated 2026-10-02).
- First Colonies Anesthesia Associates, LLC326 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Silver Spring
Clinicians with the same Medicare primary specialty in Silver Spring, MD — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Campbell Univ School Of Osteopathic Medicine |
| Graduation year | 2019 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1316506728 |
| 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