Mark Roschewski, MD
NPI 1912991951 · Hematology (Internal Medicine) Physician · Washington, DC
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Roschewski, MD is a Hematology (Internal Medicine) Physician provider in Washington, DC (NPI 1912991951).
Provider details
- NPI number
- 1912991951
- Entity type
- Individual
- Primary specialty
- Hematology (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 5507 (AK)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-09-06
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mark Roschewski's NPI number?
- Mark Roschewski's National Provider Identifier (NPI) is 1912991951, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Roschewski's specialty?
- Mark Roschewski is listed in the NPPES registry with a primary specialty of Hematology (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Roschewski located?
- Mark Roschewski's practice location on file with NPPES is 6900 Georgia Ave Nw, Washington, DC 20307.
- What is Mark Roschewski's phone number?
- The practice phone number listed in the NPPES registry for Mark Roschewski is (202) 782-4950.
- Does Mark Roschewski accept Medicare?
- Mark Roschewski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Roschewski's NPI active?
- Yes — Mark Roschewski's NPI (1912991951) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.