Quick answers
- Which hospitals does Bruce Knolmayer work at?
- Medicare's official clinician data lists Bruce Knolmayer at 1 hospital: MedStar Montgomery Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Bruce Knolmayer see patients?
- Medicare's clinician data lists 8 practice locations, including Hagerstown, MD, Frederick, MD and Washington, DC. Call before your visit to confirm the address.
- What is Bruce Knolmayer's specialty?
- Medicare lists Orthopedic Surgery as the primary specialty.
- Does Bruce Knolmayer accept Medicare assignment?
- Yes. Medicare's clinician data says Bruce Knolmayer 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 Bruce Knolmayer?
- (202) 444-2000, as listed in official Medicare / NPI Registry data.
- What is Bruce Knolmayer's NPI number?
- 1124020383. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Bruce Knolmayer works
Medicare's Facility Affiliation Data lists Bruce Knolmayer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- MedStar Montgomery Medical CenterOlney, MD · Acute Care Hospital · CCN 210018
Practice locations
Addresses where Bruce Knolmayer is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 8; the Medicare profile lists all.
- 11110 Medical Campus RdHagerstown, MD 21742
- 187 Thomas Johnson DrFrederick, MD 21702
- 187 Thomas Johnson Dr, Suite 6Frederick, MD 21702
- 3800 Reservoir Rd NWWashington, DC 20007 (202) 444‑2000
- 6041 Powder Mill RdCalverton, MD 20705
Group practices
Medicare enrollment lists Bruce Knolmayer as a member of these groups (CMS data updated 2026-10-02).
- MedStar Medical Group II LLC3,767 clinicians in the group
- Suburban/Nrh Medical Rehabilitation Inc941 clinicians in the group
- Meritus Medical Center Inc743 clinicians in the group
- Amber Hill Physical Therapy Inc334 clinicians in the group
- National Rehabilitation Hospital, Inc12 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Hagerstown
Clinicians with the same Medicare primary specialty in Hagerstown, MD — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Georgetown University School Of Medicine |
| Graduation year | 1991 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1124020383 |
| 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