NPPES file of Aug 9, 2026

Eugene J. Louie-Ng, M.D.

Obstetrics & Gynecology Physician · Gainesville, VA

Eugene J. Louie-Ng, M.D. is an obstetrics & gynecology physician with a practice address in Gainesville, Virginia, and NPI 1164476818, issued on May 19, 2006. Check the license (Virginia 0101230347, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1164476818
Name
Eugene J. Louie-Ng
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License numbers
0101230347 VA
ME179014 FL
01051386A IN
1020658 MA
334442 NC
Self-reported in NPPES; status is on the state search
Practice location
7915 Lake Manassas Drive, Gainesville, VA 20155
Phone
(866) 775-3551
Enumerated
May 19, 2006
Record last updated
Mar 19, 2026
Fax
(703) 365-7702
Medicaid IDs
6205232 VA
292836 VA
Medicare enrollment
Enrolled (PECOS I20240723002864); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 7915 Lake Manassas Drive

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Michele Allard, PTPhysical Therapist1518091701
  2. Jay Bukzin, DDSOral and Maxillofacial Surgery (Dentist)1740364066
  3. Jennifer Heilman, DPTPhysical Therapist1922132869
  4. Natasha Khurana, DDS, IBCLCPediatric Dentistry1669648028

Verify Eugene J. Louie-Ng in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersVirginia Department of Health Professions
    Search for license 0101230347
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Virginia license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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59% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

67 Medicare Part D claims for 27 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. Eugene Louie-Ng67
  2. Specialty average165

Most prescribed

  1. Estradiol14 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $4,515.96

4 payments; by number, the most common kind was education; the largest payer was Intuitive Surgical, Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Eugene Louie-Ng$4,515.96
  2. Specialty average$1,030.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 3 group practices

  1. Martha Jefferson Medical Group LLCCharlottesville, VA
  2. Signature Healthcare Medical Group IncBrockton, MA
  3. Uva Community Health Medical Group LLCGainesville, VA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Eugene J. Louie-Ng among 1,174 obstetrics & gynecology physician records in Virginia

Eugene J. Louie-Ng, M.D. is one of 1,174 obstetrics & gynecology physician records with a practice address in Virginia. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.

  • NPI issued2006 · 11% of these records are older, 51% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1995 · median 2005 among the 701 with a school on file
  • Record last updated2026 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in Virginia

There are 1,174 obstetrics & gynecology physician records in Virginia.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Stacy Dehal, M. D.Gainesville, VA 201551922009265
  2. Denize Gallagher, MDGainesville, VA 201551770108128
  3. Stephanie Spytek, M.D.Gainesville, VA 201551306878954
  4. Leah Allbright, MDChantilly, VA 201521538699814
  5. Sarah Frank, DOChantilly, VA 201521295314581
  6. Erin Perucci, M.D.Chantilly, VA 201521689808222
  7. Masooma Raza, MDChantilly, VA 201521245735935
  8. Shalini Varshney, M.D.Chantilly, VA 201521326209545

Common questions

What is Eugene J. Louie-Ng, M.D.'s NPI number?

Eugene J. Louie-Ng, M.D.'s National Provider Identifier (NPI) is 1164476818, issued on May 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Eugene J. Louie-Ng, M.D. located?

The NPPES record lists a practice address at 7915 Lake Manassas Drive, Gainesville, VA, 20155. Phone: (866) 775-3551. Providers update this record themselves, so call before visiting.

How can I verify Eugene J. Louie-Ng, M.D.'s license?

NPPES lists Virginia license number 0101230347, as entered by the provider. Search the Virginia Department of Health Professions at https://dhp.virginiainteractive.org/lookup/index. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Eugene J. Louie-Ng, M.D. prescribe under Medicare Part D?

In 2024, Eugene J. Louie-Ng, M.D. had 67 Medicare Part D claims for 27 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.