Lionel Guillaume, M.D.
Specialist · Bossier City, LA
Lionel Guillaume, M.D. is a specialist with a practice address in Bossier City, Louisiana, and NPI 1619946001, issued on Mar 16, 2006. Check the license (Louisiana 017032, as entered in NPPES) with the Louisiana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Lionel Guillaume
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- 017032 LA
Self-reported in NPPES; status is on the state search - Practice location
- 3018 Old Minden RD, Bossier City, LA 71112
- Phone
- (318) 747-1665
- Enumerated
- Mar 16, 2006
- Record last updated
- Sep 17, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (318) 747-1597
- Medicaid ID
- 1343765 LA
- Medicare enrollment
- Enrolled (PECOS I20051003000327); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest specialist records → All 550 in Louisiana → Look up another NPI →
Also registered at 3018 Old Minden RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ashley Adams, LMSWMental Health Counselor1457724577
- Ruthie AdamsCase Manager/Care Coordinator1467808196
- Valerie Barteet, MA, NCC, LPCProfessional Counselor1700108313
- Victoria BenderMental Health Counselor1104299171
- April BonnerCase Manager/Care Coordinator1679948707
- Damien BoydProfessional Counselor1528431590
Verify Lionel Guillaume in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Louisiana board licenses this profession
Search for license 017032Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.7 times the Medicare Part D claims of the average specialist in 2024
3,785 Medicare Part D claims for 261 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Divalproex Sodium275 claims
- Trazodone Hcl250 claims
- Quetiapine Fumarate231 claims
- Risperidone217 claims
- Aripiprazole168 claims
- Doxepin Hcl158 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: $70.17
4 payments; by number, the most common kind was food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 5,844 providers of this specialty with any payment received $4,760.79 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
- Northeast Delta Human Services AuthorityMonroe, LA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lionel Guillaume among 550 specialist records in Louisiana
Lionel Guillaume, M.D. is one of 550 specialist records with a practice address in Louisiana. 36% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 44% newer
- In a Medicare fileYes · 36% of these records are
- In the CMS Doctors and Clinicians fileYes · 23% of these records are
- Graduated1978 · median 1991 among the 124 with a school on file
- Record last updated2021 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in Louisiana
There are 550 specialist records in Louisiana.
All 550 in Louisiana → Every provider in Bossier City → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Dale Bauman, M.D.Bossier City, LA 711111609844034
- Monica Lacy, PTBossier City, LA 711111922267400
- Mary Luckey, PTBossier City, LA 711111659526598
- Christie Raymond, DROT, LOTRBossier City, LA 711111427255017
- Donesa Walker, BCCSShreveport, LA 711151346879335
- Lisa DupreeShreveport, LA 711071063816304
- Felicia PoseyShreveport, LA 711071437769817
- Amber WilliamsShreveport, LA 711071053862185
Common questions
What is Lionel Guillaume, M.D.'s NPI number?
Lionel Guillaume, M.D.'s National Provider Identifier (NPI) is 1619946001, issued on Mar 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Lionel Guillaume, M.D. located?
The NPPES record lists a practice address at 3018 Old Minden RD, Bossier City, LA, 71112. Phone: (318) 747-1665. Providers update this record themselves, so call before visiting.
How can I verify Lionel Guillaume, M.D.'s license?
NPPES lists Louisiana license number 017032, as entered by the provider. Search the Louisiana board that licenses this profession; the NPPES record confirms identity only.
How much does Lionel Guillaume, M.D. prescribe under Medicare Part D?
In 2024, Lionel Guillaume, M.D. had 3,785 Medicare Part D claims for 261 beneficiaries; the average among specialist prescribers was 1,380. 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.