DR. JOHN M RAINEY M.D.
NPI 1003887100
Internal Medicine - Hematology & Oncology in Lafayette, LA
About Dr. John M Rainey M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN M RAINEY M.D. (NPI 1003887100) is an individual hematology & oncology provider in Lafayette, Louisiana, licensed in Louisiana (012223) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. John M Rainey M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show John Rainey reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Lafayette, LA 70503
- Reassigned Medicare billing, Louisiana enrollment
- 428 clinicians in this Medicare group
Lafayette, LA 70503
- Reassigned Medicare billing, Louisiana enrollment
- 151 clinicians in this Medicare group
Lafayette, LA 70506
- Reassigned Medicare billing, Louisiana enrollment
- Medicare enrollment name: University Hospital & Clinics, Inc.
- 206 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 70506 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LAFAYETTE, LA 70506
LAFAYETTE, LA 70506
LAFAYETTE, LA 70506
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is John Rainey's NPI number?
The NPI number for John Rainey is 1003887100. It was assigned to this individual provider in the NPPES registry on January 28, 2006.
Where is John Rainey located?
John Rainey practices at 501 W Saint Mary Blvd, Lafayette, LA 70506. The listed phone number is (337) 235-7898.
What is John Rainey's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is John Rainey enrolled in Medicare?
Yes. John Rainey is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for John Rainey's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Rainey reassigns Medicare benefits to 3 organizations: Lafayette Health Ventures, Inc. (Lafayette, LA), Lafayette General Medical Center Inc (Lafayette, LA) and University Hospital And Clinics, Inc. (Lafayette, LA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for John Rainey's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for John Rainey was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. John M Rainey, M.D. · NPI 1003887100
Hematology & Oncology physician in Lafayette, Louisiana. Individual provider, active in the CMS NPPES registry since January 28, 2006.
## Identity
- **NPI:** 1003887100 (Entity type: Individual)
- **Enumerated:** January 28, 2006
- **Primary specialty:** Internal Medicine - Hematology & Oncology · taxonomy 207RH0003X
- **State license:** 012223 (Louisiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 501 W SAINT MARY BLVD, Lafayette, LA 70506-4600
- **Phone:** (337) 235-7898 · **Fax:** (337) 235-7445
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Lafayette Health Ventures, Inc. (NPI 1164805719, Lafayette, LA); Lafayette General Medical Center Inc (NPI 1518577030, Lafayette, LA); University Hospital And Clinics, Inc. (NPI 1265042782, Lafayette, LA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 13, 2026
- **Other identifiers:** Medicaid 1182869 (LA)
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Source: [NPI Profile](https://npiprofile.com/npi/1003887100) · Data from the CMS NPPES public registry.