Gerald O'Bryan, M.D.
NPI 1629259478 · Internal Medicine Physician · Houma, LA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gerald O'Bryan, M.D. is a Internal Medicine Physician provider in Houma, LA (NPI 1629259478).
Provider details
- NPI number
- 1629259478
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 201218 (LA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
261 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 157 | $91 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 44 | $62 |
| Advance Care Planning, First 30 Minutes99497 | 29 | $71 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 16 | $120 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 15 | $8 |
Typical Medicare-allowed amounts for these services range $8–$120 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 168 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 710 | 112 |
| Atorvastatin Calcium | 500 | 139 |
| Gabapentin | 322 | 97 |
| Pantoprazole Sodium | 318 | 85 |
| Amlodipine Besylate | 311 | 82 |
| Furosemide | 298 | 88 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-11-21
- Last updated
- 2012-10-10
Frequently asked questions
- What is Gerald O'Bryan's NPI number?
- Gerald O'Bryan's National Provider Identifier (NPI) is 1629259478, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gerald O'Bryan's specialty?
- Gerald O'Bryan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gerald O'Bryan located?
- Gerald O'Bryan's practice location on file with NPPES is 1990 Industrial Blvd, Houma, LA 70363-7055.
- What is Gerald O'Bryan's phone number?
- The practice phone number listed in the NPPES registry for Gerald O'Bryan is (985) 868-9300.
- Does Gerald O'Bryan accept Medicare?
- Gerald O'Bryan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gerald O'Bryan's NPI active?
- Yes — Gerald O'Bryan's NPI (1629259478) is active in the NPPES registry as of the last update on 2012-10-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.