IndividualActive
Warren Marion, M.D.
NPI 1033679063 · Internal Medicine Physician · Leesburg, VA
Warren Marion, M.D. is a Internal Medicine Physician provider in Leesburg, VA (NPI 1033679063).
Provider details
- NPI number
- 1033679063
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 0101053454 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Established profile(66/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 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
38483 Forest Mills Rd
Leesburg, VA 20175
Phone: (540) 338-3447
Fax: (540) 338-3447
Street-level locationGet directions
Mailing address
38483 Forest Mills Rd
Leesburg, VA 20175
Registry dates
- Enumerated
- 2019-03-25
- Last updated
- 2019-03-25
Frequently asked questions
- What is Warren Marion's NPI number?
- Warren Marion's National Provider Identifier (NPI) is 1033679063, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Warren Marion's specialty?
- Warren Marion is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Warren Marion located?
- Warren Marion's practice location on file with NPPES is 38483 Forest Mills Rd, Leesburg, VA 20175.
- What is Warren Marion's phone number?
- The practice phone number listed in the NPPES registry for Warren Marion is (540) 338-3447.
- Is Warren Marion's NPI active?
- Yes — Warren Marion's NPI (1033679063) is active in the NPPES registry as of the last update on 2019-03-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.