Laci Lafleur Theunissen, M.D.
Dermatology Physician · Baton Rouge, LA
Laci Lafleur Theunissen, M.D. is a dermatology physician with a practice address in Baton Rouge, Louisiana, and NPI 1386783280, issued on Feb 6, 2007. Check the license (Louisiana MD.204409, as entered in NPPES) on the Louisiana State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Laci Lafleur Theunissen
- Credential
- M.D.
- Primary taxonomy
- Dermatology Physician 207N00000X
- License numbers
- MD.204409 LA
37739 IA
24598 NE
24471 OK
Self-reported in NPPES; status is on the state search - Practice location
- 7855 Jefferson Hwy, Baton Rouge, LA 70809
- Phone
- (225) 214-3199
- Enumerated
- Feb 6, 2007
- Record last updated
- May 7, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (225) 214-8011
- Medicaid IDs
- 47068731795 NE
1002571500 NE
47068731778 NE
47068731746 NE - Medicare enrollment
- Enrolled (PECOS I20110726000436); accepts Medicare assignment
- Medical or professional school
- Louisiana State University School Of Medicine In New Orleans, 2004
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 196 in Louisiana → Look up another NPI →
Also registered at 7855 Jefferson Hwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- James Ferrer, MDDermatology Physician1063096139
- Jill Fruge, MDDermatology Physician1922324714
Verify Laci Lafleur Theunissen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
Search for license MD.204409Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
43% more Medicare Part D claims than the average dermatology physician in 2024
1,138 Medicare Part D claims for 402 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Ketoconazole239 claims
- Hydrocortisone129 claims
- Triamcinolone Acetonide93 claims
- Doxycycline Hyclate71 claims
- Mometasone Furoate71 claims
- Clobetasol Propionate69 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,384.19
100 payments; by number, the most common kind was food and beverage; the largest payer was Dermavant Sciences, Inc. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Our Lady OF The Lake Physician Group LLCBaton Rouge, LA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Laci Lafleur Theunissen among 196 dermatology physician records in Louisiana
Laci Lafleur Theunissen, M.D. is one of 196 dermatology physician records with a practice address in Louisiana. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 43% of them.
- NPI issued2007 · 43% of these records are older, 42% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 82% of these records are
- Graduated2004 · median 2006 among the 160 with a school on file
- Record last updated2021 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in Louisiana
There are 196 dermatology physician records in Louisiana.
All 196 in Louisiana → Every provider in Baton Rouge → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- James Ferrer, MDBaton Rouge, LA 708091063096139
- Jill Fruge, MDBaton Rouge, LA 708091922324714
- Franklin Johnson, M.D.Baton Rouge, LA 708091275522328
- Sarah McGinty, M.D.Baton Rouge, LA 708091164841243
- Errol Quintal, M.D.Baton Rouge, LA 708091033187273
- Azeen Sadeghian, M.D.Baton Rouge, LA 708091104184720
- Ira Thorla, M.D.Baton Rouge, LA 708091730178047
- Adam Carter, MDBaton Rouge, LA 708081134562861
Common questions
What is Laci Lafleur Theunissen, M.D.'s NPI number?
Laci Lafleur Theunissen, M.D.'s National Provider Identifier (NPI) is 1386783280, issued on Feb 6, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Laci Lafleur Theunissen, M.D. located?
The NPPES record lists a practice address at 7855 Jefferson Hwy, Baton Rouge, LA, 70809. Phone: (225) 214-3199. Providers update this record themselves, so call before visiting.
How can I verify Laci Lafleur Theunissen, M.D.'s license?
NPPES lists Louisiana license number MD.204409, as entered by the provider. Search the Louisiana State Board of Medical Examiners at https://www.lsbme.la.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Laci Lafleur Theunissen, M.D. prescribe under Medicare Part D?
In 2024, Laci Lafleur Theunissen, M.D. had 1,138 Medicare Part D claims for 402 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.