Lo an Nguyen, MD
NPI 1033284971 · Internal Medicine Physician · Reston, VA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lo an Nguyen, MD is a Internal Medicine Physician provider in Reston, VA (NPI 1033284971).
Provider details
- NPI number
- 1033284971
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 0101048232 (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
- 2006-11-22
- Last updated
- 2024-05-16
- Certified
- 2024-05-16
Frequently asked questions
- What is Lo an Nguyen's NPI number?
- Lo an Nguyen's National Provider Identifier (NPI) is 1033284971, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lo an Nguyen's specialty?
- Lo an Nguyen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lo an Nguyen located?
- Lo an Nguyen's practice location on file with NPPES is 11445 Sunset Hills Road, Reston, VA 20190-5276.
- What is Lo an Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Lo an Nguyen is (703) 709-1500.
- Does Lo an Nguyen accept Medicare?
- Lo an Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lo an Nguyen's NPI active?
- Yes — Lo an Nguyen's NPI (1033284971) is active in the NPPES registry as of the last update on 2024-05-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.