Eugene J Louieng, MD, PC
NPI 1780785451 · Obstetrics & Gynecology Physician · Manassas, VA
Eugene J Louieng, MD, PC is a Obstetrics & Gynecology Physician organization in Manassas, VA (NPI 1780785451).
Provider details
- NPI number
- 1780785451
- Entity type
- Organization
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Eugene Louie-Ng, President(703) 361-3551
- License
- 0101240017 (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
- 2006-09-26
- Last updated
- 2020-08-22
Frequently asked questions
- What is Eugene J Louieng, MD, PC's NPI number?
- Eugene J Louieng, MD, PC's National Provider Identifier (NPI) is 1780785451, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Eugene J Louieng, MD, PC?
- Eugene J Louieng, MD, PC is classified in the NPPES registry as Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Eugene J Louieng, MD, PC located?
- Eugene J Louieng, MD, PC's practice location on file with NPPES is 8650 Sudley Road, Manassas, VA 20110.
- What is Eugene J Louieng, MD, PC's phone number?
- The practice phone number listed in the NPPES registry for Eugene J Louieng, MD, PC is (703) 361-3551.
- Who is the authorized official for Eugene J Louieng, MD, PC?
- The authorized official listed on Eugene J Louieng, MD, PC's NPPES record is Eugene Louie-Ng, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Eugene J Louieng, MD, PC's NPI active?
- Yes — Eugene J Louieng, MD, PC's NPI (1780785451) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.