John Rainey, M.D.
NPI 1003887100 · Hematology & Oncology Physician · Lafayette, LA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Rainey, M.D. is a Hematology & Oncology Physician provider in Lafayette, LA (NPI 1003887100).
Provider details
- NPI number
- 1003887100
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- License
- 012223 (LA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Empagliflozinbrand: Jardiance | 26 |
| Linagliptinbrand: Tradjenta | 25 |
| Latanoprost | 20 |
| Atorvastatin Calcium | 16 |
| Fluticasone Propionate | 13 |
| Metoclopramide Hcl | 13 |
| Amlodipine Besylate | 12 |
| Betaxolol Hcl | 12 |
| Fluoxetine Hcl | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$23 across 1 record (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
- 2006-01-28
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Rainey's NPI number?
- John Rainey's National Provider Identifier (NPI) is 1003887100, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Rainey's specialty?
- John Rainey is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is John Rainey located?
- John Rainey's practice location on file with NPPES is 501 W Saint Mary Blvd, Lafayette, LA 70506-4600.
- What is John Rainey's phone number?
- The practice phone number listed in the NPPES registry for John Rainey is (337) 235-7898.
- Does John Rainey accept Medicare?
- John Rainey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Rainey's NPI active?
- Yes — John Rainey's NPI (1003887100) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.