Quick answers
- Which hospitals does Petek Donmez work at?
- Medicare's official clinician data lists Petek Donmez at 1 hospital: Sibley Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Petek Donmez see patients?
- Medicare's clinician data lists 2 practice locations, including Rockville, MD and Bethesda, MD. Call before your visit to confirm the address.
- What is Petek Donmez's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Petek Donmez accept Medicare assignment?
- Yes. Medicare's clinician data says Petek Donmez 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 Petek Donmez?
- (301) 230-1895, as listed in official Medicare / NPI Registry data.
- What is Petek Donmez's NPI number?
- 1609953116. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Petek Donmez works
Medicare's Facility Affiliation Data lists Petek Donmez at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Sibley Memorial HospitalWashington, DC · Acute Care Hospital · CCN 090005
Practice locations
Addresses where Petek Donmez is enrolled with Medicare (CMS data updated 2026-10-02).
- 11125 Rockville Pike, Suite 308Rockville, MD 20852 (301) 230‑1895
- 6410 Rockledge Dr, Suite 600Bethesda, MD 20817
Group practices
Medicare enrollment lists Petek Donmez as a member of this group (CMS data updated 2026-10-02).
- Suburban/Nrh Medical Rehabilitation Inc941 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Rockville
Clinicians with the same Medicare primary specialty in Rockville, MD — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1989 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1609953116 |
| 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