Rosemarie Greyson-Fleg, MD
NPI 1538355789 · Diagnostic Radiology Physician · Laurel, MD
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rosemarie Greyson-Fleg, MD is a Diagnostic Radiology Physician provider in Laurel, MD (NPI 1538355789).
Provider details
- NPI number
- 1538355789
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- D0029761 (MD)
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
18 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
- 2007-09-21
- Last updated
- 2007-09-21
Frequently asked questions
- What is Rosemarie Greyson-Fleg's NPI number?
- Rosemarie Greyson-Fleg's National Provider Identifier (NPI) is 1538355789, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rosemarie Greyson-Fleg's specialty?
- Rosemarie Greyson-Fleg is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Rosemarie Greyson-Fleg located?
- Rosemarie Greyson-Fleg's practice location on file with NPPES is 9811 Mallard Dr Ste 102, Laurel, MD 20708-3180.
- What is Rosemarie Greyson-Fleg's phone number?
- The practice phone number listed in the NPPES registry for Rosemarie Greyson-Fleg is (301) 776-4777.
- Does Rosemarie Greyson-Fleg accept Medicare?
- Rosemarie Greyson-Fleg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rosemarie Greyson-Fleg's NPI active?
- Yes — Rosemarie Greyson-Fleg's NPI (1538355789) is active in the NPPES registry as of the last update on 2007-09-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.