Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Lionel Guillaume, MD

Individual provider Psychiatry Physician · NPI 1619946001

Lionel Guillaume, MD is a Psychiatry in Bossier City, Louisiana. Qualified in 1978, 48 years ago. Practices with Northeast Delta Human Services Authority, a 19-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Louisiana.

Years since qualifying
48
Licensed in
LA
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

3018 Old Minden Rd Ste 1212
Bossier City, LA 71112-2495
Phone: (318) 747-1665
Fax: (318) 747-1597
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Specialist (primary) Taxonomy 174400000X · Licence 017032 (LA)
Psychiatry Physician Taxonomy 2084P0800X · Licence 017032 (LA)

Record details

NPI number1619946001
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 16, 2006
Last updated in NPPESSeptember 17, 2021
Certification dateSeptember 17, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPSYCHIATRY
Also practisesADDICTION MEDICINE
Medical schoolOTHER
Graduated 1978 (48 years in practice)
Group practice Northeast Delta Human Services Authority — 19 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Bossier City