Quick answers
- Where does Margretta Diemer see patients?
- Medicare's clinician data lists 1 practice location in Bethesda, MD. Call before your visit to confirm the address.
- What is Margretta Diemer's specialty?
- Medicare lists Interventional Pain Management as the primary specialty, and also Geriatric Medicine.
- Does Margretta Diemer accept Medicare assignment?
- Yes. Medicare's clinician data says Margretta Diemer 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 Margretta Diemer's NPI number?
- 1669543252. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Margretta Diemer is enrolled with Medicare (CMS data updated 2026-10-02).
- 6410 Rockledge Dr, Suite 600Bethesda, MD 20817
Group practices
Medicare enrollment lists Margretta Diemer as a member of this group (CMS data updated 2026-10-02).
- Suburban/Nrh Medical Rehabilitation Inc941 clinicians in the group
Specialties
Find other Interventional Pain Management doctors in Maryland →
Other interventional pain specialists in Maryland
Clinicians with the same Medicare primary specialty in Maryland — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Georgetown University School Of Medicine |
| Graduation year | 1979 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1669543252 |
| 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
- 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