Duncan Barlow, M.D.
NPI 1891780003 · Diagnostic Radiology Physician · Sterling, VA
Duncan Barlow, M.D. is a Diagnostic Radiology Physician provider in Sterling, VA (NPI 1891780003).
Provider details
- NPI number
- 1891780003
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- D0042670 (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
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
- 2005-09-14
- Last updated
- 2017-02-27
Frequently asked questions
- What is Duncan Barlow's NPI number?
- Duncan Barlow's National Provider Identifier (NPI) is 1891780003, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Duncan Barlow's specialty?
- Duncan Barlow is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Duncan Barlow located?
- Duncan Barlow's practice location on file with NPPES is 21525 Ridgetop Cir, Sterling, VA 20166-8518.
- What is Duncan Barlow's phone number?
- The practice phone number listed in the NPPES registry for Duncan Barlow is (703) 346-7867.
- Is Duncan Barlow's NPI active?
- Yes — Duncan Barlow's NPI (1891780003) is active in the NPPES registry as of the last update on 2017-02-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.