DR. LAMBERT MARK LAPEROUSE JR. M.D.
NPI 1609077619
Emergency Medicine in Baton Rouge, LA
About Dr. Lambert Mark Laperouse Jr. M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. LAMBERT MARK LAPEROUSE JR. M.D. (NPI 1609077619) is an individual emergency medicine provider in Baton Rouge, Louisiana, licensed in Louisiana (MD206052) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS, is affiliated with Our Lady Of The Lake Regional Medical Center, and maintains a secondary practice location in Baton Rouge.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 2
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
Dr. Lambert Mark Laperouse Jr. M.d. 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
10Medicare enrollment records show Lambert Laperouse reassigns Medicare billing to 10 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baton Rouge, LA 70808
- Reassigned Medicare billing, Louisiana enrollment
- 873 clinicians in this Medicare group
Baton Rouge, LA 70808
- Reassigned Medicare billing, Louisiana enrollment
- 147 clinicians in this Medicare group
Baton Rouge, LA 70815
- Reassigned Medicare billing, Louisiana enrollment
- 48 clinicians in this Medicare group
Gonzales, LA 70737
- Reassigned Medicare billing, Louisiana enrollment
- 59 clinicians in this Medicare group
Zachary, LA 70791
- Reassigned Medicare billing, Louisiana enrollment
- 51 clinicians in this Medicare group
Thibodaux, LA 70301
- Reassigned Medicare billing, Louisiana enrollment
- 104 clinicians in this Medicare group
Covington, LA 70433
- Reassigned Medicare billing, Louisiana enrollment
- 197 clinicians in this Medicare group
Metairie, LA 70001
- Reassigned Medicare billing, Louisiana enrollment
- 176 clinicians in this Medicare group
Bogalusa, LA 70427
- Reassigned Medicare billing, Louisiana enrollment
- 91 clinicians in this Medicare group
Lake Charles, LA 70601
- Reassigned Medicare billing, Louisiana 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.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Our Lady Of The Lake Regional Medical Center
Acute Care Hospitals · Baton Rouge, LAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 70808 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.
BATON ROUGE, LA 70808
BATON ROUGE, LA 70808
BATON ROUGE, LA 70808
BATON ROUGE, LA 70808
BATON ROUGE, LA 70808
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 Lambert Laperouse's NPI number?
The NPI number for Lambert Laperouse is 1609077619. It was assigned to this individual provider in the NPPES registry on May 29, 2007.
Where is Lambert Laperouse located?
Lambert Laperouse practices at 7777 Hennessy Blvd, Baton Rouge, LA 70808. The listed phone number is (225) 765-7163.
What is Lambert Laperouse's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Lambert Laperouse enrolled in Medicare?
Yes. Lambert Laperouse 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 Lambert Laperouse's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lambert Laperouse reassigns Medicare benefits to 10 organizations: Our Lady Of The Lake Physician Group LLC (Baton Rouge, LA), Professional Emergency Physician Associates, LLC (Baton Rouge, LA), Woman's Assessment Center Physicians (Baton Rouge, LA), Ascension Emergency Physicians LLC (Gonzales, LA), East Baton Rouge Emergency Physicians Group, LLC (Zachary, LA) and 5 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 Lambert Laperouse's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Lambert Laperouse accept?
Health plans from AmeriHealth Caritas Next, Blue Cross and Blue Shield of Texas and HMO Louisiana list Lambert Laperouse 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 Lambert Laperouse affiliated with any hospitals?
According to CMS data, Lambert Laperouse is affiliated with Our Lady Of The Lake Regional Medical Center.
When was this NPI record last updated?
The NPPES record for Lambert Laperouse was last updated on July 7, 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. Lambert Mark Laperouse Jr., M.D. · NPI 1609077619
Emergency Medicine physician in Baton Rouge, Louisiana. Individual provider, active in the CMS NPPES registry since May 29, 2007.
## Identity
- **NPI:** 1609077619 (Entity type: Individual)
- **Enumerated:** May 29, 2007
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** MD206052 (Louisiana)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 7777 HENNESSY BLVD, Baton Rouge, LA 70808-4300
- **Phone:** (225) 765-7163
## 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:** 10 organizations under Medicare reassignment (form CMS-855R): Our Lady Of The Lake Physician Group LLC (NPI 1033494943, Baton Rouge, LA); Professional Emergency Physician Associates, LLC (NPI 1992758247, Baton Rouge, LA); Woman's Assessment Center Physicians (NPI 1205019908, Baton Rouge, LA); Ascension Emergency Physicians LLC (NPI 1699118505, Gonzales, LA); East Baton Rouge Emergency Physicians Group, LLC (NPI 1255894952, Zachary, LA); and 5 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Medical University Of South Carolina College Of Medicine, class of 2007
## Record status
- **NPPES last updated:** July 7, 2026
- **Other identifiers:** Medicaid 2350421 (LA); Other P01207328 (LA)
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Source: [NPI Profile](https://npiprofile.com/npi/1609077619) · Data from the CMS NPPES public registry.