MAYS CLINIC
NPI 1104959741
Clinic/Center - Primary Care in Baton Rouge, LA

Active since March 13, 2007CLIA 19D0462348 · Microscopy
4242 GUS YOUNG AVE, BATON ROUGE, LA 70802(225) 926-2258(225) 925-2520 Get Directions Write a Review

NPPES record last updated: June 16, 2011. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Mays Clinic NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MAYS CLINIC (NPI 1104959741) is a healthcare organization registered as a primary care in Baton Rouge, Louisiana and active in the NPI registry since March 2007. The organization holds a CLIA Microscopy certificate valid through May 4, 2028 and lists Stan J Mays, President, as its authorized official.

NPPES Registry Identity

NPI1104959741
Entity TypeOrganization
Primary Taxonomy261QP2300X
Legal Business NameSTAN J MAYS MD A PROFESSIONAL MEDICAL CORPORATION
Location Address4242 GUS YOUNG AVEBaton Rouge, LA 70802-1733
Mailing Address4242 Gus Young AveBaton Rouge, LA 70802-1733 · (225) 926-2258 · Fax (225) 925-2520
Fax(225) 925-2520
Organization SubpartNo
Authorized OfficialStan J MaysPresident · (225) 926-2258
Enumeration DateMarch 13, 2007
Last NPPES UpdateJune 16, 2011
✔ NPI 1104959741 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Primary CareAmbulatory Health Care Facilities
Taxonomy Code261QP2300X
License✔ Licensed in LA · L18505
4242 GUS YOUNG AVE, Baton Rouge, LA 70802

Other Names 1

Doing Business AsMays Clinic

Other Identifiers 2

Medicare PIN5CM81LA
Medicare UPINB65047LA

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mays Clinic is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by November 30, 2026

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateLouisianaEnrollment IDO20041117000283Non-DME Part B · Clinic/Group PracticeDue dateNovember 30, 2026
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Mays Clinic, which bills Medicare for the services this clinician delivers.

Clinician (1)

Family Practice
NPI 1851360622
4242 GUS YOUNG AVE
Baton Rouge, LA 70802
(225) 926-2348
✔ PECOS✔ Accepts MedicareSame address

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) 19D0462348

Mays Clinic · Baton Rouge, LA
Active · expires May 4, 2028
CLIA Number19D0462348
Laboratory TypePhysician Office
Certificate Effective DateMay 5, 2026
Certificate Expiration DateMay 4, 2028
Laboratory DirectorShannon J. Mays Rn
Laboratory Phone(225) 926-2258
Laboratory LocationMays Clinic4242 Gus Young Avenue, Baton Rouge, LA 70802
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform waived tests.

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 Stan J Mays MD A Professional Medical Corporation's NPI number?

The NPI number for Stan J Mays MD A Professional Medical Corporation is 1104959741. It was assigned to this organization in the NPPES registry on March 13, 2007. The provider is doing business as Mays Clinic.

Where is Stan J Mays MD A Professional Medical Corporation located?

Stan J Mays MD A Professional Medical Corporation is located at 4242 Gus Young Ave, Baton Rouge, LA 70802. The listed phone number is (225) 926-2258.

What is Stan J Mays MD A Professional Medical Corporation's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Primary Care, with taxonomy code 261QP2300X.

Is Stan J Mays MD A Professional Medical Corporation enrolled in Medicare?

Yes. Stan J Mays MD A Professional Medical Corporation is registered in the Medicare PECOS enrollment system.

When is Stan J Mays MD A Professional Medical Corporation's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Louisiana, Clinic/Group Practice) is due for revalidation by November 30, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Stan J Mays MD A Professional Medical Corporation?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Family Practice) reassigns their Medicare billing to Stan J Mays MD A Professional Medical Corporation. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Stan J Mays MD A Professional Medical Corporation hold a CLIA laboratory certificate?

Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 19D0462348) is associated with this NPI, valid through May 4, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Stan J Mays MD A Professional Medical Corporation accept?

Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and AmeriHealth Caritas Next and 2 other insurers list Stan J Mays MD A Professional Medical Corporation 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 Stan J Mays MD A Professional Medical Corporation was last updated on June 16, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.