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Dermatology

Laci Theunissen, MD

Sees patients in Baton Rouge, LA · Louisiana

Summary

Dr. Laci Theunissen, MD is a dermatologist at 7777 Hennessy Blvd, Baton Rouge, LA 70808. Phone: (225) 214-3199. Accepts Medicare assignment. In 2024, Laci Theunissen had 458 Original Medicare patients and 1,811 services. NPI 1386783280. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Dermatologist (Medicare lists Dermatology)
  • Address: 7777 Hennessy Blvd, Baton Rouge, LA 70808 · Directions (1 more location)
  • Phone: (225) 214‑3199
  • Medicare: Accepts Medicare assignment
  • Group practice: Our Lady of the Lake Physician Group LLC
  • Medical school: Louisiana State University School Of Medicine In New Orleans · graduated 2004 (22 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Laci Theunissen, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Laci Theunissen accept Medicare assignment?
Yes. Medicare's clinician data says Laci Theunissen accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Laci Theunissen see?
In 2024, CMS data shows 458 Original Medicare patients and 1,811 services for Laci Theunissen. This counts Original Medicare only and measures volume, not quality.
What is Laci Theunissen's NPI number?
1386783280. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Laci Theunissen, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients458
Services billed to Medicare1,811
Different services or procedures33
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Destruction of precancer skin growth, 2-14 growths (17003)583 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)441 services
  3. Destruction of precancer skin growth, 1 growth (17000)177 services
  4. Destruction of skin growth, 1-14 growths (17110)173 services
  5. Biopsy of related skin growth, first growth (11102)138 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol75%
  • High blood pressure68%
  • Arthritis43%
  • Diabetes25%
  • Ischemic heart disease22%
  • Depression22%

Practice locations

Addresses where Laci Theunissen is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Laci Theunissen as a member of this group (CMS data updated October 2, 2026).

  • Our Lady of the Lake Physician Group LLC644 clinicians in the group

Specialties

Find other Dermatology doctors in Louisiana →

Other dermatologists in Baton Rouge

Clinicians with the same Medicare primary specialty in Baton Rouge, LA — not a recommendation.

All dermatologists in Baton Rouge →

Other clinicians in Our Lady of the Lake Physician Group LLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolLouisiana State University School Of Medicine In New Orleans
Graduation year2004 (22 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1386783280
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians