Quick answers
- Which hospitals does Jacob A. Ninan work at?
- Medicare's official clinician data lists Jacob A. Ninan at 4 hospitals: Inova Alexandria Hospital, Inova Fairfax Hospital, Inova Mount Vernon Hospital and Virginia Hospital Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jacob A. Ninan see patients?
- Medicare's clinician data lists 4 practice locations, including Arlington, VA, Woodbridge, VA and Leesburg, VA. Call before your visit to confirm the address.
- What is Jacob A. Ninan's specialty?
- Medicare lists Hematology/Oncology as the primary specialty.
- Does Jacob A. Ninan accept Medicare assignment?
- Yes. Medicare's clinician data says Jacob A. Ninan 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.
- Does Jacob A. Ninan offer telehealth?
- Medicare's clinician data says Jacob A. Ninan offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Jacob A. Ninan?
- (703) 894-3800, as listed in official Medicare / NPI Registry data.
- What is Jacob A. Ninan's NPI number?
- 1427009083. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jacob A. Ninan works
Medicare's Facility Affiliation Data lists Jacob A. Ninan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Inova Alexandria HospitalAlexandria, VA · Acute Care Hospital · CCN 490040
- Inova Fairfax HospitalFalls Church, VA · Acute Care Hospital · CCN 490063
- Inova Mount Vernon HospitalAlexandria, VA · Acute Care Hospital · CCN 490122
- Virginia Hospital CenterArlington, VA · Acute Care Hospital · CCN 490050
Practice locations
Addresses where Jacob A. Ninan is enrolled with Medicare (CMS data updated 2026-10-02).
- 1701 N George Mason Dr, Suite G 101Arlington, VA 22205 (703) 894‑3800
- 2280 Opitz Blvd, Suite 130Woodbridge, VA 22191 (703) 986‑1600
- 44035 Riverside Pkwy, Suite 300Leesburg, VA 20176 (703) 554‑6800
- 4660 Kenmore Ave, Suite 1018Alexandria, VA 22304 (571) 483‑1800
Group practices
Medicare enrollment lists Jacob A. Ninan as a member of this group (CMS data updated 2026-10-02).
- Virginia Cancer Specialists, P.C.82 clinicians in the group
Specialties
- Hematology/Oncologyprimary
Other hematologist-oncologists in Arlington
Clinicians with the same Medicare primary specialty in Arlington, VA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Michigan Medical School |
| Graduation year | 2002 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1427009083 |
| 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