Quick answers
- Which hospitals does Jason E. Maas work at?
- Medicare's official clinician data lists Jason E. Maas at 1 hospital: Mary Immaculate Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jason E. Maas see patients?
- Medicare's clinician data lists 5 practice locations, including Leesburg, VA and Newport News, VA. Call before your visit to confirm the address.
- What is Jason E. Maas's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Jason E. Maas accept Medicare assignment?
- Yes. Medicare's clinician data says Jason E. Maas 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 Jason E. Maas?
- (703) 724-9950, as listed in official Medicare / NPI Registry data.
- What is Jason E. Maas's NPI number?
- 1902162720. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jason E. Maas works
Medicare's Facility Affiliation Data lists Jason E. Maas at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mary Immaculate HospitalNewport News, VA · Acute Care Hospital · CCN 490041
Practice locations
Addresses where Jason E. Maas is enrolled with Medicare (CMS data updated 2026-10-02).
- 19455 Deerfield Ave, Suite 204Leesburg, VA 20176 (703) 724‑9950
- 2 Bernadine DrNewport News, VA 23602 (757) 886‑6000
- 760 McGuire PlNewport News, VA 23601
- 760 McGuire Pl, Suite 201Newport News, VA 23601
- 760 McGuire Pl Fl, Suite 2Newport News, VA 23601
Group practices
Medicare enrollment lists Jason E. Maas as a member of these groups (CMS data updated 2026-10-02).
- American Anesthesiology of Virginia PC531 clinicians in the group
- Virginia Anesthesia and Perioperative Care Specialists LLC30 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Leesburg
Clinicians with the same Medicare primary specialty in Leesburg, VA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Wisconsin |
| Graduation year | 2012 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1902162720 |
| 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