Quick answers
- Where does Thomas E. Maslen see patients?
- Medicare's clinician data lists 1 practice location in Greenbelt, MD. Call before your visit to confirm the address.
- What is Thomas E. Maslen's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Thomas E. Maslen accept Medicare assignment?
- Yes. Medicare's clinician data says Thomas E. Maslen 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 Thomas E. Maslen offer telehealth?
- Medicare's clinician data says Thomas E. Maslen offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Thomas E. Maslen?
- (301) 220-0200, as listed in official Medicare / NPI Registry data.
- What is Thomas E. Maslen's NPI number?
- 1699742791. 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 Thomas E. Maslen is enrolled with Medicare (CMS data updated 2026-10-02).
- 7525 Greenway Ctr Dr, Suite 312Greenbelt, MD 20770 (301) 220‑0200
Group practices
Medicare enrollment lists Thomas E. Maslen as a member of this group (CMS data updated 2026-10-02).
- Privia Care Center LLC287 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Greenbelt
Clinicians with the same Medicare primary specialty in Greenbelt, MD — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Maryland School Of Medicine |
| Graduation year | 1997 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1699742791 |
| 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