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OUTPATIENT MEDICAL SERVICES
NPI 1144344748
Specialist in Raceland, LA

Active since March 19, 2007CLIA 19D1014969 · Waiver
3916 HIGHWAY ONE, RACELAND, LA 70394(985) 537-0048(985) 537-0901 Get Directions Write a Review

NPPES record last updated: March 27, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Outpatient Medical Services NPPES

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

OUTPATIENT MEDICAL SERVICES (NPI 1144344748) is a healthcare organization registered as a specialist in Raceland, Louisiana and active in the NPI registry since March 2007. The organization holds a CLIA Waiver certificate valid through July 20, 2027 and lists Timothy Yiork Maines, Owner, as its authorized official.

NPPES Registry Identity

NPI1144344748
Entity TypeOrganization
Primary Taxonomy174400000X
Legal Business NameOUTPATIENT MEDICAL SERVICES
Location Address3916 HIGHWAY ONERaceland, LA 70394
Mailing AddressPo Box 369Raceland, LA 70394-0369 · (985) 537-0048 · Fax (985) 537-0901
Phone(985) 537-0048
Fax(985) 537-0901
Organization SubpartNo
Authorized OfficialTimothy Yiork MainesOwner · (985) 537-0048
Enumeration DateMarch 19, 2007
Last NPPES UpdateMarch 27, 2026
NPPES CertifiedMarch 27, 2026
✔ NPI 1144344748 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers
Taxonomy Code174400000X
Definition
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
3916 HIGHWAY ONE, Raceland, LA 70394
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Other Names 1

Doing Business AsOutpatient Medical Services

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Outpatient Medical Services is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Outpatient Medical Services, which bills Medicare for the services this clinician delivers.

Clinician (1)

Karl Haydel, MD
Anesthesiology
NPI 1750355632
8166 MAIN STREET
Houma, LA 70360
(985) 873-4141
✔ PECOS✔ Accepts Medicare11 mi

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 of Waiver 19D1014969

Outpatient Medical Services · Raceland, LA
Active · expires Jul 20, 2027
CLIA Number19D1014969
Laboratory TypePhysician Office
Certificate Effective DateJuly 21, 2025
Certificate Expiration DateJuly 20, 2027
Laboratory DirectorKarl G. Haydel, MD
Laboratory Phone(985) 537-0048
Laboratory LocationOutpatient Medical Services3916 La Highway One, Raceland, LA 70394
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only 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 Outpatient Medical Services's NPI number?

The NPI number for Outpatient Medical Services is 1144344748. It was assigned to this organization in the NPPES registry on March 19, 2007.

Where is Outpatient Medical Services located?

Outpatient Medical Services is located at 3916 Highway One, Raceland, LA 70394. The listed phone number is (985) 537-0048.

What is Outpatient Medical Services's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is Outpatient Medical Services enrolled in Medicare?

Yes. Outpatient Medical Services is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Outpatient Medical Services?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Anesthesiology) reassigns their Medicare billing to Outpatient Medical Services. 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 Outpatient Medical Services hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 19D1014969) is associated with this NPI, valid through July 20, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Outpatient Medical Services was last updated on March 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.