GEORGE A SEMIEN MD
NPI 1508886342
Anesthesiology in Opelousas, LA
About George A Semien Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GEORGE A SEMIEN MD (NPI 1508886342) is an individual anesthesiology provider in Opelousas, Louisiana, licensed in Florida (ME96254) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Ochsner Lafayette General Medical Center, and maintains a secondary practice location in Miami Shores.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 5
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
George A Semien Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
9Medicare enrollment records show George Semien reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Opelousas, LA 70570
- Reassigned Medicare billing, Louisiana enrollment
- 82 clinicians in this Medicare group
Lafayette, LA 70503
- Reassigned Medicare billing, Louisiana enrollment
- 428 clinicians in this Medicare group
New Iberia, LA 70563
- Reassigned Medicare billing, Louisiana enrollment
- 470 clinicians in this Medicare group
Jackson, MS 39213
- Reassigned Medicare billing, Mississippi enrollment
- 1,932 clinicians in this Medicare group
Pensacola, FL 32503
- Reassigned Medicare billing, Florida enrollment
- 1,973 clinicians in this Medicare group
Pensacola, FL 32502
- Reassigned Medicare billing, Florida enrollment
- 270 clinicians in this Medicare group
Naples, FL 34119
- Reassigned Medicare billing, Florida enrollment
- 767 clinicians in this Medicare group
Port St Lucie, FL 34952
- Reassigned Medicare billing, Florida enrollment
- 562 clinicians in this Medicare group
South Miami, FL 33143
- Reassigned Medicare billing, Florida enrollment
- 167 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ochsner Lafayette General Medical Center
Acute Care Hospitals · Lafayette, LAOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
OPELOUSAS, LA 70570
OPELOUSAS, LA 70570
OPELOUSAS, LA 70570
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 George Semien's NPI number?
The NPI number for George Semien is 1508886342. It was assigned to this individual provider in the NPPES registry on July 21, 2006.
Where is George Semien located?
George Semien practices at 539 E Prudhomme St, Opelousas, LA 70570. The listed phone number is (337) 594-3499.
What is George Semien's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is George Semien enrolled in Medicare?
Yes. George Semien is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for George Semien's services?
According to the CMS Revalidation Reassignment List (October 2026 release), George Semien reassigns Medicare benefits to 9 organizations: Opelousas General Health System Physician Practices (Opelousas, LA), Lafayette Health Ventures, Inc. (Lafayette, LA), Youngs Professional Services LLC (New Iberia, LA), State Of Mississippi- University Of Mississippi Medical Center (Jackson, MS), Sheridan Healthcorp Inc (Pensacola, FL) and 4 more organizations, listed in the Medicare section above. 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 George Semien's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does George Semien accept?
Health plans from Cigna HealthCare of Florida, Inc., Cigna Healthcare, HMO Louisiana and Oscar Health Maintenance Organization of Florida list George Semien as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is George Semien affiliated with any hospitals?
According to CMS data, George Semien is affiliated with Ochsner Lafayette General Medical Center.
When was this NPI record last updated?
The NPPES record for George Semien was last updated on July 30, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.
# George A Semien, MD · NPI 1508886342
Anesthesiology physician in Opelousas, Louisiana. Individual provider, active in the CMS NPPES registry since July 21, 2006.
## Identity
- **NPI:** 1508886342 (Entity type: Individual)
- **Enumerated:** July 21, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** ME96254 (Florida)
- **Sole proprietor:** No
## Practice location
- **Address:** 539 E PRUDHOMME ST, Opelousas, LA 70570-6499
- **Phone:** (337) 594-3499 · **Fax:** (337) 943-7182
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 9 organizations under Medicare reassignment (form CMS-855R): Opelousas General Health System Physician Practices (NPI 1295098747, Opelousas, LA); Lafayette Health Ventures, Inc. (NPI 1164805719, Lafayette, LA); Youngs Professional Services LLC (NPI 1922178599, New Iberia, LA); State Of Mississippi- University Of Mississippi Medical Center (NPI 1194930693, Jackson, MS); Sheridan Healthcorp Inc (NPI 1811664386, Pensacola, FL); and 4 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Rochester School Of Medicine And Dentistry, class of 2002
## Record status
- **NPPES last updated:** July 30, 2024
- **Other identifiers:** Medicaid 009938073 (AL); Other 591-87139 (AL); Medicaid 275969100 (FL); and 2 more
---
Source: [NPI Profile](https://npiprofile.com/npi/1508886342) · Data from the CMS NPPES public registry.