NPPES file of Aug 9, 2026

Tracy J. Williams, PH,D., BCBA

Cognitive & Behavioral Psychologist · Sioux Falls, SD

Tracy J. Williams, PH,D., BCBA is a cognitive & behavioral psychologist with a practice address in Sioux Falls, South Dakota, and NPI 1114180064, issued on Jul 9, 2008. Check the license (South Dakota 1-03-1438, as entered in NPPES) with the South Dakota board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1114180064
Name
Tracy J. Williams
Credential
PH,D., BCBA
Primary taxonomy
Cognitive & Behavioral Psychologist 103TB0200X
License numbers
1-03-1438 SD
419 SD
Self-reported in NPPES; status is on the state search
Practice location
1105 W Russell Street, Sioux Falls, SD 57104
Phone
(605) 271-2690
Enumerated
Jul 9, 2008
Record last updated
Jul 22, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(605) 271-3956
Medicaid ID
6551930 SD
Medicare enrollment
Enrolled (PECOS I20120105000925); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Tracy J. Williams in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich South Dakota board licenses this profession
    Search for license 1-03-1438
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the South Dakota license search

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Bills Medicare through one group practice

  1. Volunteers OF America DakotasSioux Falls, SD

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Cognitive & Behavioral Psychologist providers in South Dakota

There are 3 cognitive & behavioral psychologist records in South Dakota.

The 2 cognitive & behavioral psychologist records with the nearest ZIP codes

  1. Thomas Price, M.A., PH.D.Sioux Falls, SD 571081518055078
  2. Lindsay Miller, PHDRapid City, SD 577011386120335

Common questions

What is Tracy J. Williams, PH,D., BCBA's NPI number?

Tracy J. Williams, PH,D., BCBA's National Provider Identifier (NPI) is 1114180064, issued on Jul 9, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Tracy J. Williams, PH,D., BCBA located?

The NPPES record lists a practice address at 1105 W Russell Street, Sioux Falls, SD, 57104. Phone: (605) 271-2690. Providers update this record themselves, so call before visiting.

How can I verify Tracy J. Williams, PH,D., BCBA's license?

NPPES lists South Dakota license number 1-03-1438, as entered by the provider. Search the South Dakota board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.