John Mcdonald, M.D.
NPI 1386834281 · Gastroenterology Physician · Baton Rouge, LA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Mcdonald, M.D. is a Gastroenterology Physician provider in Baton Rouge, LA (NPI 1386834281).
Provider details
- NPI number
- 1386834281
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD.200458 (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
18 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
819 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 | 140 | $118 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 99 | $58 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 77 | $72 |
| Chronic Care Management Services for Two Or More Chronic Conditions, Additional 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99439 | 71 | $44 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 67 | $233 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 408 | 123 |
| Dicyclomine Hcl | 148 | 47 |
| Linaclotidebrand: Linzess | 118 | 29 |
| Omeprazole | 92 | 32 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 67 | 66 |
| Esomeprazole Magnesium | 58 | 19 |
| Sod Picosulf/Mag Ox/Citric Acbrand: Clenpiq | 50 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$847 across 45 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
- 2007-07-26
- Last updated
- 2014-11-07
Frequently asked questions
- What is John Mcdonald's NPI number?
- John Mcdonald's National Provider Identifier (NPI) is 1386834281, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Mcdonald's specialty?
- John Mcdonald is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is John Mcdonald located?
- John Mcdonald's practice location on file with NPPES is 9103 Jefferson Hwy, Baton Rouge, LA 70809-2440.
- What is John Mcdonald's phone number?
- The practice phone number listed in the NPPES registry for John Mcdonald is (225) 927-1190.
- Does John Mcdonald accept Medicare?
- John Mcdonald is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Mcdonald's NPI active?
- Yes — John Mcdonald's NPI (1386834281) is active in the NPPES registry as of the last update on 2014-11-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.