WILLIAM H. ST. MARTIN, M.D. A PROFESSIONAL CORPO
NPI 1104146661
Family Medicine in Houma, LA
About William H. St. Martin, M.d. A Professional Corpo NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM H. ST. MARTIN, M.D. A PROFESSIONAL CORPO (NPI 1104146661) is a healthcare organization registered as a family medicine in Houma, Louisiana and active in the NPI registry since June 2010. The organization holds a CLIA Microscopy certificate valid through March 16, 2027 and lists William H. St. Martin, Physician/owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
William H. St. Martin, M.d. A Professional Corpo is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
2Medicare enrollment records show 2 clinicians reassign Medicare billing to William H. St. Martin, M.D. A Professional Corpo, which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.
Clinicians, nearest first (2)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate for Provider-Performed Microscopy Procedures (PPMP) 19D0958362
William H St Martin, MD · Houma, LAFrequently 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 William H. St. Martin, M.D. A Professional Corpo's NPI number?
The NPI number for William H. St. Martin, M.D. A Professional Corpo is 1104146661. It was assigned to this organization in the NPPES registry on June 8, 2010.
Where is William H. St. Martin, M.D. A Professional Corpo located?
William H. St. Martin, M.D. A Professional Corpo is located at 818 Verret Street, Houma, LA 70360. The listed phone number is (985) 857-8001.
What is William H. St. Martin, M.D. A Professional Corpo's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is William H. St. Martin, M.D. A Professional Corpo enrolled in Medicare?
Yes. William H. St. Martin, M.D. A Professional Corpo is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through William H. St. Martin, M.D. A Professional Corpo?
According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Family Practice, reassign their Medicare billing to William H. St. Martin, M.D. A Professional Corpo. A 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 the clinician's services. Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does William H. St. Martin, M.D. A Professional Corpo hold a CLIA laboratory certificate?
Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 19D0958362) is associated with this NPI, valid through March 16, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
What insurance does William H. St. Martin, M.D. A Professional Corpo accept?
Health plans from Blue Cross and Blue Shield of Louisiana and HMO Louisiana list William H. St. Martin, M.D. A Professional Corpo 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.
When was this NPI record last updated?
The NPPES record for William H. St. Martin, M.D. A Professional Corpo was last updated on June 8, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# William H. St. Martin, M.d. A Professional Corpo · NPI 1104146661
Family Medicine organization in Houma, Louisiana. Organization record, active in the CMS NPPES registry since June 8, 2010.
## Identity
- **NPI:** 1104146661 (Entity type: Organization)
- **Enumerated:** June 8, 2010
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **Organization subpart:** No
- **Authorized official:** William St. Martin, PHYSICIAN/OWNER
## Practice location
- **Address:** 818 VERRET STREET, Houma, LA 70360
- **Phone:** (985) 857-8001 · **Fax:** (985) 857-8330
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 2 clinicians (Family Practice) reassign Medicare billing to this organization (form CMS-855R); 2 practice at this address · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 8, 2010
- **Other identifiers:** Medicare UPIN 5U231 (LA)
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1104146661) · Data from the CMS NPPES public registry.