Thomas Irwin, MD
NPI 1629172358 · Otolaryngology Physician · Marrero, LA
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Irwin, MD is a Otolaryngology Physician provider in Marrero, LA (NPI 1629172358).
Provider details
- NPI number
- 1629172358
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 010120 (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
19 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
401 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 155 | $86 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 61 | $106 |
| Comprehensive Hearing and Speech Recognition Test92557 | 57 | $35 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 26 | $54 |
| Test for Hearing Various Pitches Using Earphone92552 | 24 | $35 |
| Placement of Ear Probe for Computerized Measurement of Sound With Interpretation and Report92587 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 181 | 124 |
| Azithromycin | 70 | 52 |
| Diazepam | 48 | 14 |
| Ipratropium Bromide | 42 | 17 |
| Levofloxacin | 35 | 27 |
| Meclizine Hcl | 34 | 18 |
| Omeprazole | 30 | 11 |
| Amoxicillin | 27 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$241 across 5 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
- 2006-09-12
- Last updated
- 2025-05-29
- Certified
- 2025-05-29
Frequently asked questions
- What is Thomas Irwin's NPI number?
- Thomas Irwin's National Provider Identifier (NPI) is 1629172358, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Irwin's specialty?
- Thomas Irwin is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Irwin located?
- Thomas Irwin's practice location on file with NPPES is 1151 Barataria Blvd Ste 3100, Marrero, LA 70072-3083.
- What is Thomas Irwin's phone number?
- The practice phone number listed in the NPPES registry for Thomas Irwin is (504) 934-8461.
- Does Thomas Irwin accept Medicare?
- Thomas Irwin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Irwin's NPI active?
- Yes — Thomas Irwin's NPI (1629172358) is active in the NPPES registry as of the last update on 2025-05-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.