Quick answers
- Which hospitals does John J. McAllister work at?
- Medicare's official clinician data lists John J. McAllister at 4 hospitals: Adventist Healthcare Fort Washington Medical Center, Calverthealth Medical Center, Luminis Health Anne Arundel Medical Center, Inc and Luminis Health Doctors Community Medical Center, Inc. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John J. McAllister see patients?
- Medicare's clinician data lists 2 practice locations, including Prince Frederick, MD and Silver Spring, MD. Call before your visit to confirm the address.
- What is John J. McAllister's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does John J. McAllister accept Medicare assignment?
- Yes. Medicare's clinician data says John J. McAllister 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 J. McAllister?
- (410) 535-2270, as listed in official Medicare / NPI Registry data.
- What is John J. McAllister's NPI number?
- 1609819325. 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 J. McAllister works
Medicare's Facility Affiliation Data lists John J. McAllister at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Adventist Healthcare Fort Washington Medical CenterFort Washington, MD · Acute Care Hospital · CCN 210060
- Calverthealth Medical CenterPrince Frederick, MD · Acute Care Hospital · CCN 210039
- Luminis Health Anne Arundel Medical Center, IncAnnapolis, MD · Acute Care Hospital · CCN 210023
- Luminis Health Doctors Community Medical Center, IncLanham, MD · Acute Care Hospital · CCN 210051
Practice locations
Addresses where John J. McAllister is enrolled with Medicare (CMS data updated 2026-10-02).
- 800 Prince Frederick BlvdPrince Frederick, MD 20678 (410) 535‑2270
- 8905 Fairview RdSilver Spring, MD 20910 (888) 554‑0631
Group practices
Medicare enrollment lists John J. McAllister as a member of this group (CMS data updated 2026-10-02).
- Anesthesia Company LLC378 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Prince Frederick
Clinicians with the same Medicare primary specialty in Prince Frederick, MD — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Pennsylvania State University College Of Medicine |
| Graduation year | 2002 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1609819325 |
| 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