What is Lionel Guillaume's specialty?

Lionel Guillaume (NPI 1619946001) is a Medicare-billing provider whose primary specialty is Psychiatry in Bossier City, LA.

Where does Lionel Guillaume practice?

Lionel Guillaume practices in Bossier City, LA, based on the location reported in the CMS Medicare provider datasets for NPI 1619946001.

How much does Medicare pay Lionel Guillaume?

Lionel Guillaume (NPI 1619946001) received approximately $35K in total Medicare Part B payments, serving 115 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1619946001

Lionel GuillaumeM.D.

PRACTICELIONEL GUILLAUME INCSee all providers at this practice →

PsychiatryBossier City, LAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

130

Unique beneficiaries

—

Total services

555

Distinct HCPCS

Medicare payment

$32K

Peer benchmark

Total Medicare services vs. 237 Psychiatry providers in LA — top quintile (cohort median 182).

PRESCRIBING · PART D · 2024

Total Rx claims

3,686

Beneficiaries

—

Total drug cost

$845K

Distinct drugs

Brand share

17.0%

Top prescribed drugs

Divalproex Sodium275 claims

Trazodone Hcl250 claims

Quetiapine Fumarate231 claims

Risperidone217 claims

Aripiprazole168 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$70

Payment records

By payment type

Food and Beverage$70

Top paying entities

Food and Beverage$70

REFERRAL NETWORK

Where Lionel Guillaume's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 24 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
PHYSICIANS BEHAVIORAL HOSPITAL, LLC	190	587
SPRINGHILL MEDICAL SERVICES, INC.	68	226
BIENVILLE MEDICAL CENTER INC	58	4,404
NPI 1356314165	55	117
Clinical Pathology Laboratories, Inc. Clinical Laboratory · Austin, TX	40	155
Jasjit Singh Psychiatry · Shreveport, LA	33	157
NPI 1013916642	30	74
WILLIS KNIGHTON MEDICAL CENTER, INC.	28	76
Leamon Torrence Internal Medicine · Springhill, LA	28	79
Vincent Lococo Emergency Medicine · Springhill, LA	25	142
D & G HOLDINGS, LLC	23	331
Robert Edwards Diagnostic Radiology · Bossier City, LA	21	37

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events