Quick answers
- Which hospitals does Rojack Tan work at?
- Medicare's official clinician data lists Rojack Tan at 1 hospital: Suburban Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Rojack Tan 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 Rojack Tan's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Rojack Tan accept Medicare assignment?
- Yes. Medicare's clinician data says Rojack Tan 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 Rojack Tan?
- (301) 881-7770, as listed in official Medicare / NPI Registry data.
- What is Rojack Tan's NPI number?
- 1528015765. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Rojack Tan works
Medicare's Facility Affiliation Data lists Rojack Tan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Suburban HospitalBethesda, MD · Acute Care Hospital · CCN 210022
Practice locations
Addresses where Rojack Tan is enrolled with Medicare (CMS data updated 2026-10-02).
- 11210 Old Georgetown RdRockville, MD 20852 (301) 881‑7770
- 8600 Old Georgetown RdBethesda, MD 20814 (301) 896‑3931
Group practices
Medicare enrollment lists Rojack Tan as a member of this group (CMS data updated 2026-10-02).
- First Colonies Anesthesia Associates, LLC326 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Rockville
Clinicians with the same Medicare primary specialty in Rockville, MD — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Georgetown University School Of Medicine |
| Graduation year | 1997 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1528015765 |
| 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