Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1801730239 Individual Practitioner Female Practitioner

Dr. Olivia Larson , PhD

Psychologist • Appleton, WI

Professional Overview & Biography Verified Profile Summary

Dr. Olivia Larson, PhD is a registered healthcare professional specializing in Psychologist in Appleton, WI. Practice services are available at 4635 W COLLEGE AVE under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

4635 W College Ave

Appleton, WI 549148507

Telephone 9207507000
Associated Practice Facility / Clinic
🏢 Catalpa Health Facility NPI 1386992451

Specialty Benchmarks & Practice Insights

Comparative analytics for Psychologist in Appleton, WI

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 23.0 Yrs
State Avg: 22.4 Yrs
Regional Practice Density
30 Specialists

Practicing in Appleton, WI (1000 Statewide)

Telehealth Adoption Rate
6.7% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

CMS Verified: 2026-04-16
Psychologist Primary Specialty

NUCC Taxonomy Code: 103T00000X

A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners
Maria Vercimak , LPC

Counselor - Professional

NPI 1003279753

Licensed Professional Counselor

Dr. Mark Rovick , DO

Psychiatry & Neurology - Child & Adolescent Psychiatry

NPI 1003866864

Doctor of Osteopathic Medicine (D.O.)

Yer Thao

Counselor - Professional

NPI 1023702156
Scott Radtke , LPC

Counselor - Professional

NPI 1033106794

Licensed Professional Counselor

Stephanie Shirey

Nurse Practitioner - Psychiatric/Mental Health

NPI 1043672504
Lisa Engelhardt , APNP

Nurse Practitioner - Psychiatric/Mental Health

NPI 1043686538

Advanced Practice Nurse Prescriber

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events
NPI Profile Active April 16, 2026

NPI status registered as active in NPPES database

📍
Updated Practice Location April 16, 2026

Registered at 4635 W COLLEGE AVE, APPLETON, WI 549148507 (Tel: 9207507000)

📍
Updated Business Mailing Address April 16, 2026

Registered at 4635 W COLLEGE AVE, APPLETON, WI 549148507 (Tel: 9207507000)

👤
Provider Name / Credentials Updated April 16, 2026

Recorded as OLIVIA LARSON, PHD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) April 16, 2026

Psychologist

🟢
Initial NPI Registration & Enumeration April 16, 2026

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

0 Reviews
No patient reviews submitted yet for Dr. Olivia Larson. Be the first to share your experience!

Sign in to leave a review for Dr. Olivia Larson

Only verified registered users can submit ratings, post feedback, and upload facility photos.

NPI Administrative Meta

NPI Number: 1801730239
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 16, 2026
Last Update: April 16, 2026
Sole Proprietor: No

Mailing Address

4635 W College Ave

Appleton, WI 549148507

Phone: 9207507000

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.