Leonard Rosen, M.D.,F.A.C.O.G
NPI 1417006842 · Obstetrics & Gynecology Physician · Manassas, VA
Leonard Rosen, M.D.,F.A.C.O.G is a Obstetrics & Gynecology Physician provider in Manassas, VA (NPI 1417006842).
Provider details
- NPI number
- 1417006842
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.,F.A.C.O.G
- Sex
- Male
- Sole proprietor
- No
- License
- 0101029029 (VA)
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
19 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
- 2007-01-08
- Last updated
- 2019-12-17
- Certified
- 2019-12-17
Frequently asked questions
- What is Leonard Rosen's NPI number?
- Leonard Rosen's National Provider Identifier (NPI) is 1417006842, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leonard Rosen's specialty?
- Leonard Rosen is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Leonard Rosen located?
- Leonard Rosen's practice location on file with NPPES is 8701 Digges Rd, Manassas, VA 20110-4423.
- What is Leonard Rosen's phone number?
- The practice phone number listed in the NPPES registry for Leonard Rosen is (571) 655-9420.
- Is Leonard Rosen's NPI active?
- Yes — Leonard Rosen's NPI (1417006842) is active in the NPPES registry as of the last update on 2019-12-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.