Quick answers
- Which hospitals does Ondrea K. Timmermann work at?
- Medicare's official clinician data lists Ondrea K. Timmermann at 4 hospitals: Garrett Regional Medical Center, United Hospital Center, Inc, West Virginia University Hospitals, Inc and Wheeling Hospital, Inc. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ondrea K. Timmermann see patients?
- Medicare's clinician data lists 2 practice locations, including Hagerstown, MD and Morgantown, WV. Call before your visit to confirm the address.
- What is Ondrea K. Timmermann's specialty?
- Medicare lists Neurology as the primary specialty.
- Does Ondrea K. Timmermann accept Medicare assignment?
- Yes. Medicare's clinician data says Ondrea K. Timmermann 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 Ondrea K. Timmermann offer telehealth?
- Medicare's clinician data says Ondrea K. Timmermann offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Ondrea K. Timmermann?
- (304) 598-6127, as listed in official Medicare / NPI Registry data.
- What is Ondrea K. Timmermann's NPI number?
- 1285196220. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ondrea K. Timmermann works
Medicare's Facility Affiliation Data lists Ondrea K. Timmermann at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Garrett Regional Medical CenterOakland, MD · Acute Care Hospital · CCN 210017
- United Hospital Center, IncBridgeport, WV · Acute Care Hospital · CCN 510006
- West Virginia University Hospitals, IncMorgantown, WV · Acute Care Hospital · CCN 510001
- Wheeling Hospital, IncWheeling, WV · Acute Care Hospital · CCN 510050
Practice locations
Addresses where Ondrea K. Timmermann is enrolled with Medicare (CMS data updated 2026-10-02).
- 11110 Medical Campus RdHagerstown, MD 21742
- 33 Medical Ctr DrMorgantown, WV 26505 (304) 598‑6127
Group practices
Medicare enrollment lists Ondrea K. Timmermann as a member of these groups (CMS data updated 2026-10-02).
- West Virginia University Medical Corporation1,980 clinicians in the group
- Meritus Medical Center Inc743 clinicians in the group
Specialties
- Neurologyprimary
Other neurologists in Hagerstown
Clinicians with the same Medicare primary specialty in Hagerstown, MD — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | West Virginia School Of Osteopathic Medicine |
| Graduation year | 2019 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1285196220 |
| 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