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

Individual provider Clinical Psychologist · NPI 1689101859

Dr. Louis Nieuwenhuizen, PSYD is a Clinical Psychologist in Huntington, West Virginia. Qualified in 2015, 11 years ago. Practices with Olympic Psychology Services, PLLC, a 9-clinician group, accepts Medicare assignment and offers telehealth. Licensed in West Virginia.

Years since qualifying
11
Licensed in
WV
In the registry since
2017
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

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Practice location Address checks out

1115 20th St
Huntington, WV 25703-2071
Phone: (304) 691-1500
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 1153 (WV)

Record details

NPI number1689101859
Entity typeIndividual (Type 1)
GenderMale
Credentials PSYD
Sole proprietorNo
NPI enumeratedMay 18, 2017
Last updated in NPPESMay 18, 2017

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice Olympic Psychology Services, Pllc — 9 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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