DR. RONALD J RIDDER (PHD) – Clinical Psychologist, NPI 1861463440

DR. RONALD J RIDDER (PHD) is a healthcare provider. based in Cedar rapids, Iowa. specializing in CLINICAL PSYCHOLOGIST. They hold the professional credentials PHD. They hold a License No. PHD338 (NE). The NPI Number for DR. RONALD J RIDDER (PHD) is 1861463440

Main info

Male
33 Years Of Experience
Name
DR. RONALD J RIDDER (PHD)
NPI
1861463440
Phone
(319) 369-4777
Address
701 10TH ST SE
Enumeration Date
31 January 2006
Last Update Date
15 December 2015

Doctor Profile

Medical School Name
OTHER
Secondary Phone
-
Graduation Year
1993 (33 years ago)
PAC ID
9133177520
Professional Enrollment ID
I20160112003066
Address ID
IA524031251CE701XXSEXX400
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience63
Completeness75
Years active:20State licenses:2Digital endpointsOther names

192 CLINICAL PSYCHOLOGIST in IA

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Provider Addresses for DR. RONALD J RIDDER (PHD)

  • 701, 10th Street Southeast, MedQuarter, Cedar Rapids, Linn County, Iowa, 52403, United States

    CEDAR RAPIDS, IA 524031251

    Phone: (319) 369-4777

    Fax: (319) 369-4694

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

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Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

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Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
96137Administration of psychological or neuropsychological test, each additional 30 minutes24941$0
96116Exam of neurobehavioral status, first hour4848$0
96121Exam of neurobehavioral status, each additional hour4242$0
96132Evaluation of neuropsychological test, first hour4141$0
96136Administration of psychological or neuropsychological test, first 30 minutes4141$0
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Insurance plans in this area (ZIP 52403)

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Provider's Procedures

DR. RONALD J RIDDER (PHD) performs procedures in CLINICAL PSYCHOLOGIST. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
PSYCHOLOGIST, CLINICALIA96118Neuropsychological testing, interpretation, and report by psychologist or physician per hour4116

Reviews

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Frequently asked questions

How is DR. RONALD J RIDDER (PHD) identified in CMS data?
CMS-hosted NPPES data lists DR. RONALD J RIDDER (PHD) with NPI 1861463440.
Can I rely on DR. RONALD J RIDDER (PHD) being an active provider?
As of the registry snapshot, DR. RONALD J RIDDER (PHD) is marked active.
What is DR. RONALD J RIDDER (PHD)'s specialty?
The listing groups DR. RONALD J RIDDER (PHD) with Clinical Psychologist. Clinical services aligned with this taxonomy classification.
What area does DR. RONALD J RIDDER (PHD) serve?
DR. RONALD J RIDDER (PHD)'s listing highlights Cedar Rapids, Iowa; more addresses can appear in NPPES.
Why does DR. RONALD J RIDDER (PHD) have multiple addresses?
2 practice locations appear in the available data. Multiple addresses are common for hospital privileges, telehealth, or multi-site groups.

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