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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. LAMBERT MARK LAPEROUSE JR. M.D.
NPI 1609077619
Emergency Medicine in Baton Rouge, LA

Active since May 29, 2007PECOS EnrolledAccepts Medicare Assignment
7777 HENNESSY BLVD, BATON ROUGE, LA 70808(225) 765-7163 Get Directions Write a Review

NPPES record last updated: July 7, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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

NPI1609077619
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. LAMBERT MARK LAPEROUSE JR.Credential: M.D.
Location Address7777 HENNESSY BLVDBaton Rouge, LA 70808-4300
Mailing AddressPo Box 80093Baton Rouge, LA 70898-0093 · (225) 765-7163
Phone(225) 765-7163
Sole ProprietorYes
Medical School CMSMedical University Of South Carolina College Of MedicineGraduated 2007
Enumeration DateMay 29, 2007
Last NPPES UpdateJuly 7, 2026
NPPES CertifiedJuly 7, 2026
✔ NPI 1609077619 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses✔ Licensed in LA · MD206052✔ Licensed in FL · TRN11194
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Also ListedHospitalistTaxonomy 208M00000X · License 206052 (LA)
7777 HENNESSY BLVD, Baton Rouge, LA 70808
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Secondary Practice Location 1

Location 15439 Airline HwyBaton Rouge, LA 70805-1712 · Phone (225) 358-4853 · Fax (225) 358-2350

Other Identifiers 2

Medicaid2350421LA
OtherP01207328LA · Railroad Mcare

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, HMO Louisiana.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

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.

PECOS PAC ID9638214943
PECOS Enrollment IDI20130824000069
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
53 services53 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
35 services33 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
22 services22 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
11 services11 patients

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, LA
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number190064
Location5000 Hennessy BlvdBaton Rouge, LA 70808 · E. Baton Rouge County
Emergency services

Physician 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.

New Patient
$83.60 typical visit price
range $53.43 – $164.73
Typical copayment $20.90 (range $13.35 – $41.18)
Most-billed visit code 99203
Established Patient
$95.09 typical visit price
range $16.64 – $133.62
Typical copayment $23.77 (range $4.16 – $33.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

SARA ADAMS MARTIN MD
Anesthesiology
7777 HENNESSY BLVD, SUITE 301
BATON ROUGE, LA 70808
East Baton Rouge Parish (225) 214-6438
CELESTE BUUCK FNP
Nurse Practitioner
7777 HENNESSY BLVD, SUITE 1000
BATON ROUGE, LA 70808
East Baton Rouge Parish (225) 767-3900
PAMELA STANLEY NP
Nurse Practitioner (Acute Care)
7777 HENNESSY BLVD, SUITE 701
BATON ROUGE, LA 70808
East Baton Rouge Parish (225) 765-5864
EYE SPECIALISTS EYEWEAR
Durable Medical Equipment & Medical Supplies
7777 HENNESSY BLVD, SUITE 5000
BATON ROUGE, LA 70808
East Baton Rouge Parish (225) 768-7777
DR. JOHN MCALISTER WHITAKER M.D.
Surgery
7777 HENNESSY BLVD, SUITE 612
BATON ROUGE, LA 70808
East Baton Rouge Parish (225) 769-5656
PAULLA DANIELLE BROUILLETTE PA
Physician Assistant
7777 HENNESSY BLVD, OUR LADY OF THE LAKE MED CNTR -- ER DEPT
BATON ROUGE, LA 70808
East Baton Rouge Parish (888) 447-2450
OUR LADY OF THE LAKE ADVANCED HEALTH SOLUTIONS
Surgery
7777 HENNESSY BLVD, SUITE 612
BATON ROUGE, LA 70808
East Baton Rouge Parish (225) 769-5656
AMY MARTIN MCMILLAN CRNA
Nurse Anesthetist, Certified Registered
7777 HENNESSY BLVD, SUITE 301
BATON ROUGE, LA 70808
East Baton Rouge Parish (225) 214-6438

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.

What insurance does Lambert Laperouse accept?

Health plans from 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 37 days 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.