1. Home
  2. Directory
  3. South Dakota
  4. Sioux Falls
  5. Psychologist
  6. NPI Profile

DR. TRACY J WILLIAMS PH,D., BCBA
NPI 1114180064
Psychologist - Cognitive & Behavioral in Sioux Falls, SD

Active since July 09, 2008PECOS EnrolledAccepts Medicare Assignment
1105 W RUSSELL STREET, SIOUX FALLS, SD 57104(605) 271-2690(605) 271-3956 Get Directions Write a Review

NPPES record last updated: July 22, 2021. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Jul 22, 2021, Jan 4, 2021, Jan 24, 2017 (3 updates tracked since 2017).

About Dr. Tracy J Williams Ph,d., Bcba NPPES

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

DR. TRACY J WILLIAMS PH,D., BCBA (NPI 1114180064) is an individual cognitive & behavioral provider in Sioux Falls, South Dakota and active in the NPI registry since July 2008. She is enrolled in Medicare PECOS, maintains 6 additional practice locations, and is a graduate of Other (1998).

NPPES Registry Identity

NPI1114180064
Entity TypeIndividualFemale
Primary Taxonomy103TB0200X
Provider Legal NameDR. TRACY J WILLIAMSCredential: PH,D., BCBA
Location Address1105 W RUSSELL STREETSioux Falls, SD 57104
Mailing Address1105 W Russell StSioux Falls, SD 57104-1322 · (605) 271-2690 · Fax (605) 271-3956
Phone(605) 271-2690
Fax(605) 271-3956
Sole ProprietorNo
Medical School CMSOtherGraduated 1998
Enumeration DateJuly 9, 2008
Last NPPES UpdateJuly 22, 20213 updates tracked since enumeration
NPPES CertifiedJuly 22, 2021
✔ NPI 1114180064 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyPsychologist · Cognitive & BehavioralBehavioral Health & Social Service Providers
Taxonomy Code103TB0200X
Definition
A psychologist who reflects an experimental-clinical approach distinguished by use of principles of human learning and development and theories of cognitive processing to promote meaningful change in maladaptive human behavior and thinking.
Also ListedBehavior AnalystTaxonomy 103K00000X · License 1-03-1438 (SD)
Also ListedPsychologistTaxonomy 103T00000X · License 419 (SD)
Also ListedPsychologist · Intellectual and Developmental DisabilitiesTaxonomy 103TM1800X
1105 W RUSSELL STREET, Sioux Falls, SD 57104
Open in Google Maps ↗

Secondary Practice Locations 6

Location 1745 10th St Ste CRock Valley, IA 51247-1511 · Phone (605) 271-2690
Location 2735 3rd St SWPerham, MN 56573-1152 · Phone (605) 271-2690
Location 3620 N Lawler StMitchell, SD 57301-2639 · Phone (605) 271-2690
Location 43721 23rd St S Ste 201Saint Cloud, MN 56301-6199 · Phone (605) 271-2690
Location 51704 Westland RdCheyenne, WY 82001-3322 · Phone (605) 271-2690
Location 6405 S Washington StAberdeen, SD 57401-4348 · Phone (605) 271-2690

Other Identifiers 1

Medicaid6551930SD

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and more.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. Tracy J Williams Ph,d., Bcba 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 ID2668648023
PECOS Enrollment IDI20120105000925
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.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Group psychotherapy 90853
Group psychotherapy involves individuals discussing their issues in a group setting, led by a professional therapist. It provides a supportive environment where members can learn from each other's experiences, gain different perspectives, and develop new ways to handle challenges.
755 services31 patients
Psychotherapy, 30 minutes 90832
Psychotherapy is a therapeutic interaction or treatment between a trained professional and a patient. In a 30-minute session, the therapist helps you explore feelings, thoughts, and behaviors to better understand yourself and manage life's challenges.
180 services20 patients
Psychotherapy, 1 hour 90837
Psychotherapy is a therapeutic interaction or treatment between a trained professional and a patient. In a 1-hour session, you'll talk about your feelings, thoughts, and behaviors to help identify and manage mental health issues. This process aids in personal growth, healing, and improved well-being.
76 services21 patients
Psychotherapy, 45 minutes 90834
Psychotherapy is a treatment method where you converse with a therapist about your thoughts, feelings, and behaviors. In a 45-minute session, the therapist assists you in understanding and managing your mental health concerns, improving emotional wellness, and promoting personal growth.
36 services14 patients

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 Tracy Williams's NPI number?

The NPI number for Tracy Williams is 1114180064. It was assigned to this individual provider in the NPPES registry on July 9, 2008.

Where is Tracy Williams located?

Tracy Williams practices at 1105 W Russell Street, Sioux Falls, SD 57104. The listed phone number is (605) 271-2690.

What is Tracy Williams's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Cognitive & Behavioral, with taxonomy code 103TB0200X.

Is Tracy Williams enrolled in Medicare?

Yes. Tracy Williams 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 Tracy Williams accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Home State Health, Ambetter from NH Healthy Families and Ambetter from Sunflower Health Plan and 2 other insurers list Tracy Williams 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 Tracy Williams was last updated on July 22, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.