PROVIDER PROFILE · NPI 1568576403

Harold Van LonkhuyzenMD

PsychiatryRockland, MEI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

164

Distinct HCPCS

Medicare payment

$15K

Peer benchmark

Total Medicare services vs. 124 Psychiatry providers in ME — above median (cohort median 145).

PRESCRIBING · PART D · 2024

Total Rx claims

1,669

Beneficiaries

—

Total drug cost

$42K

Distinct drugs

Brand share

16.6%

Top prescribed drugs

Quetiapine Fumarate173 claims

Sertraline Hcl150 claims

Lamotrigine132 claims

Risperidone107 claims

Venlafaxine Hcl102 claims

QUALITY · MIPS · 2024

Final MIPS score

97.9

Quality

83.3

Cost

0.0

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.97%

APM Entity

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Harold Van Lonkhuyzen'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). 6 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Charles Mullen Diagnostic Radiology · Damariscotta, ME	19	37
Harold Amsel Psychiatry · Ellsworth, ME	16	32
Robert Stein Neurology · Belfast, ME	12	74
NPI 1124085741	11	20
ISNARDI, PATTI	11	22
Christopher Gelwix Cardiology · Scarborough, ME	11	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