Physician Profile
Harold W. Van Lonkhuyzen, MD practices psychiatry in Rockland, ME. Harold is a 1997 graduate of University of Rochester School of Medicine and Dentistry. Medicare claims data shows Harold provided 164 services to 57 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more and psychiatric diagnostic evaluation with medical services. The provider's National Provider Identifier (NPI) is 1568576403.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
12 UNION STREET
Rockland, ME 04841
Within Psychiatry generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Anxiety, trauma, and obsessive-compulsive
Mood disorders
Psychotic disorders
Substance-related and addictive
Addiction & Substance Use
Cognitive and adjustment
Eating Disorders
Eating, sleep, and somatic
Mood & Depression
Neurodevelopmental and behavioral
Personality and dissociative
Sleep & Wakefulness
Most searched procedures
Assessment
Addiction care
Addiction Medicine
Assessments
Brain stimulation
Consultations
Diagnostics
Inpatient care
Interventional psychiatry
Psychotherapy
Sleep Medicine
Specialized care
Therapy
Therapy and care
164 services · 57 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Psychiatric diagnostic evaluation with medical services | Treatment | 90792 |
17 | Less often than most peers in Psychiatry |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
147 | More often than most peers in Psychiatry |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Van Lonkhuyzen is a psychiatrist in Rockland, ME. That is the designation recorded for this NPI in the federal registry, where it is listed as “Psychiatry”.
NPI registry
Dr. Van Lonkhuyzen is listed at 12 Union Street, Rockland, ME 04841. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (207) 701-4402. Contact the office directly to confirm availability and scheduling.
NPI registry
Dr. Van Lonkhuyzen's National Provider Identifier is 1568576403. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Dr. Van Lonkhuyzen attended University of Rochester School of Medicine and Dentistry, graduating in 1997. This comes from the CMS National Downloadable File.
CMS public data
Dr. Van Lonkhuyzen has 29 years experience. Calculated from a graduation year of 1997, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Van Lonkhuyzen provides treatments such as psychiatric diagnostic evaluation with medical services, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Van Lonkhuyzen. If this is you, claiming it is free.
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