Hai Nam Nguyen, M.D.
Internal Medicine Physician · Gretna, LA
Hai Nam Nguyen, M.D. is an internal medicine physician with a practice address in Gretna, Louisiana, and NPI 1235295551, issued on Dec 29, 2006. Check the license (Louisiana 023174, as entered in NPPES) on the Louisiana State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Hai Nam Nguyen
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 023174 LA
Self-reported in NPPES; status is on the state search - Practice location
- 315 Westbank Expy, Gretna, LA 70053
- Phone
- (504) 364-1844
- Enumerated
- Dec 29, 2006
- Record last updated
- Jun 15, 2023
- Fax
- (504) 367-6022
- Medicaid ID
- 1492337 LA
- Medicare enrollment
- Enrolled (PECOS I20051014000628); accepts Medicare assignment
- Medical or professional school
- Louisiana State University School Of Medicine In New Orleans, 1996
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,749 in Louisiana → Look up another NPI →
Also registered at 315 Westbank Expy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brad BourgeoisNurse Practitioner1982066783
- Wai Hong Lem, APRNFamily Nurse Practitioner1316558034
- Vy NguyenPharmacist1265941157
- Anh TranPharmacist1881431807
Verify Hai Nam Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
Search for license 023174Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average internal medicine physician in 2024
6,818 Medicare Part D claims for 354 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 106 claims were for opioids.
Most prescribed
- Atorvastatin Calcium396 claims
- Metformin Hcl279 claims
- Albuterol Sulfate Hfa234 claims
- Amlodipine Besylate232 claims
- Gabapentin193 claims
- Fluticasone Propionate175 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: $531.26
33 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Hai Nam Nguyen MD LLCGretna, LA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hai Nam Nguyen among 1,749 internal medicine physician records in Louisiana
Hai Nam Nguyen, M.D. is one of 1,749 internal medicine physician records with a practice address in Louisiana. 85% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 58% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1996 · median 2008 among the 1,216 with a school on file
- Record last updated2023 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
18 internal medicine physician records list a practice address in Gretna
They are 18 of the 770 NPPES records with a practice address in Gretna, and 1,749 internal medicine physician records in Louisiana.
All 1,749 in Louisiana → Every provider in Gretna → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- James Dyess, M.D.Gretna, LA 700531386749653
- Zia Khan, M.D.Gretna, LA 700531205011517
- Anu Vellanki, MDGramercy, LA 700521497746499
- Lakisah Bastian, MDGretna, LA 700561730354630
- Everett Brown, M.D.Gretna, LA 700561548255979
- Ralph Cameron, MDGretna, LA 700561740276229
- Betty Dowty, MD, PHDGretna, LA 700561902955990
- Joshua Fowler, M.D.Gretna, LA 700561154505931
Common questions
What is Hai Nam Nguyen, M.D.'s NPI number?
Hai Nam Nguyen, M.D.'s National Provider Identifier (NPI) is 1235295551, issued on Dec 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Hai Nam Nguyen, M.D. located?
The NPPES record lists a practice address at 315 Westbank Expy, Gretna, LA, 70053. Phone: (504) 364-1844. Providers update this record themselves, so call before visiting.
How can I verify Hai Nam Nguyen, M.D.'s license?
NPPES lists Louisiana license number 023174, as entered by the provider. Search the Louisiana State Board of Medical Examiners at https://www.lsbme.la.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Hai Nam Nguyen, M.D. prescribe under Medicare Part D?
In 2024, Hai Nam Nguyen, M.D. had 6,818 Medicare Part D claims for 354 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.