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DR. BRENNAN DALE ATHERTON PHD
NPI 1215319330
Psychologist - Clinical in Williston, ND

Active since June 25, 2015PECOS EnrolledAccepts Medicare Assignment
1309 11TH ST W APT 208, WILLISTON, ND 58801(801) 717-0405 Get Directions Write a Review

NPPES record last updated: May 5, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 5, 2026, May 4, 2020 (2 updates tracked since 2020).

About Dr. Brennan Dale Atherton Phd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. BRENNAN DALE ATHERTON PHD (NPI 1215319330) is an individual clinical provider in Williston, North Dakota, licensed in North Dakota (585) and active in the NPI registry since June 2015. He is enrolled in Medicare PECOS and is a graduate of Other (2017).

NPPES Registry Identity

NPI1215319330
Entity TypeIndividualMale
Primary Taxonomy103TC0700X
Provider Legal NameDR. BRENNAN DALE ATHERTONCredential: PHD
Location Address1309 11TH ST W APT 208Williston, ND 58801-4654
Mailing Address1309 11th St W Apt 208Williston, ND 58801-4654 · (801) 717-0405
Phone(801) 717-0405
Sole ProprietorNo
Medical School CMSOtherGraduated 2017
Enumeration DateJune 25, 2015
Last NPPES UpdateMay 5, 20262 updates tracked since enumeration
NPPES CertifiedMay 5, 2026
✔ NPI 1215319330 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in ND · 585
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
1309 11TH ST W APT 208, Williston, ND 58801
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of North Dakota, Medica, Sanford Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Brennan Dale Atherton Phd is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4981027190
PECOS Enrollment IDI20200707001484
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 58801 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$168.12 typical visit price
range $55.75 – $168.12
Typical copayment $42.03 (range $13.93 – $42.03)
Most-billed visit code 99205
Established Patient
$98.29 typical visit price
range $18.11 – $137.65
Typical copayment $24.57 (range $4.52 – $34.41)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

PRAIRIE RIVER THERAPY AND ASSESSMENTS
Psychologist (Clinical)
1309 11TH ST W APT 208
WILLISTON, ND 58801
Williams County (801) 717-0405

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Brennan Atherton's NPI number?

The NPI number for Brennan Atherton is 1215319330. It was assigned to this individual provider in the NPPES registry on June 25, 2015.

Where is Brennan Atherton located?

Brennan Atherton practices at 1309 11th St W Apt 208, Williston, ND 58801. The listed phone number is (801) 717-0405.

What is Brennan Atherton's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Brennan Atherton enrolled in Medicare?

Yes. Brennan Atherton is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Brennan Atherton accept?

Health plans from Blue Cross Blue Shield of North Dakota, Medica and Sanford Health Plan list Brennan Atherton as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Brennan Atherton was last updated on May 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.