DR. DARREN JILEK PH.D.
NPI 1215300066
Psychologist in Mellette, SD

Active since November 02, 2015PECOS EnrolledAccepts Medicare Assignment
39218 PRAIRIE RD, MELLETTE, SD 57461(605) 228-4877 Get Directions Write a Review

NPPES record last updated: December 9, 2015. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Darren Jilek Ph.d. NPPES

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

DR. DARREN JILEK PH.D. (NPI 1215300066) is an individual psychologist in Mellette, South Dakota, licensed in South Dakota (536) and active in the NPI registry since November 2015. He is enrolled in Medicare PECOS and is a graduate of Other (2014).

NPPES Registry Identity

NPI1215300066
Entity TypeIndividualMale
Primary Taxonomy103T00000X
Provider Legal NameDR. DARREN JILEKCredential: PH.D.
Location Address39218 PRAIRIE RDMellette, SD 57461-5206
Mailing Address39218 Prairie RdMellette, SD 57461-5206
Sole ProprietorYes
Medical School CMSOtherGraduated 2014
Enumeration DateNovember 2, 2015
Last NPPES UpdateDecember 9, 2015
✔ NPI 1215300066 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License✔ Licensed in SD · 536
Definition
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.
39218 PRAIRIE RD, Mellette, SD 57461

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Darren Jilek Ph.d. 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 ID8820399413
PECOS Enrollment IDI20151228001033
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.

Medicare Billing Reassignment

Medicare enrollment records show Darren Jilek reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Psychologist
1409 6TH AVE SE STE 5
Aberdeen, SD 57401
  • Reassigned Medicare billing, South Dakota enrollment
  • 10 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Darren Jilek's NPI number?

The NPI number for Darren Jilek is 1215300066. It was assigned to this individual provider in the NPPES registry on November 2, 2015.

Where is Darren Jilek located?

Darren Jilek practices at 39218 Prairie Rd, Mellette, SD 57461. The listed phone number is (605) 228-4877.

What is Darren Jilek's specialty?

The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.

Is Darren Jilek enrolled in Medicare?

Yes. Darren Jilek 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.

Which organization bills Medicare for Darren Jilek's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Darren Jilek reassigns Medicare benefits to Northern Plains Psychological Associates, LLC (Aberdeen, SD). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Darren Jilek's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Darren Jilek accept?

Health plans from Avera Health Plans, Sanford Health Plan and Wellmark of South Dakota, Inc. list Darren Jilek 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 Darren Jilek was last updated on December 9, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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.