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

Individual provider Mental Health Counselor · NPI 1932889268

River Williams, PHD is a Clinical Psychologist in Lincoln, Nebraska. Qualified in 2024, 2 years ago. Practices with Marti Mental Health Services Inc, a 2-clinician group and accepts Medicare assignment. Licensed in Nebraska.

Years since qualifying
2
Licensed in
NE
In the registry since
2023
Specialties on file
2
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

4435 O St Ste 211
Lincoln, NE 68510-1864
Phone: (402) 489-2218
Fax: (402) 489-3666
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Intellectual & Developmental Disabilities Psychologist (primary) Taxonomy 103TM1800X · Licence 1195 (NE)
Mental Health Counselor Taxonomy 101YM0800X · Licence 13435 (NE)

Record details

NPI number1932889268
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorNo
NPI enumeratedJuly 21, 2023
Last updated in NPPESAugust 19, 2025
Certification dateAugust 19, 2025

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 2024 (2 years in practice)
Group practice Marti Mental Health Services Inc — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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