Mary Nguyen, MD
NPI 1427599729 · Neurology Physician · Gretna, LA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Nguyen, MD is a Neurology Physician provider in Gretna, LA (NPI 1427599729).
Provider details
- NPI number
- 1427599729
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 332762 (LA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
250 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 82 | $93 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 53 | $133 |
| Needle Measurement of Electrical Activity in Arm Or Leg Muscles, Complete Study95886 | 45 | $42 |
| Nerve Conduction, 9-10 Studies95911 | 38 | $124 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 19 | $122 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 31 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 218 | 44 |
| Levetiracetam | 131 | 31 |
| Donepezil Hcl | 107 | 35 |
| Pregabalin | 91 | 21 |
| Ubrogepantbrand: Ubrelvy | 75 | 16 |
| Erenumab-Aooebrand: Aimovig Autoinjector | 72 | — |
| Memantine Hcl | 62 | 22 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,154 across 59 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-03-20
- Last updated
- 2022-10-20
- Certified
- 2022-10-20
Frequently asked questions
- What is Mary Nguyen's NPI number?
- Mary Nguyen's National Provider Identifier (NPI) is 1427599729, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Nguyen's specialty?
- Mary Nguyen is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Nguyen located?
- Mary Nguyen's practice location on file with NPPES is 120 Ochsner Blvd Ste 220, Gretna, LA 70056-5248.
- What is Mary Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Mary Nguyen is (504) 595-8318.
- Does Mary Nguyen accept Medicare?
- Mary Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Nguyen's NPI active?
- Yes — Mary Nguyen's NPI (1427599729) is active in the NPPES registry as of the last update on 2022-10-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.