Barrett Williams, PHD
Health Service Psychologist · Tulsa, OK
Barrett Williams, PHD is a health service psychologist with a practice address in Tulsa, Oklahoma, and NPI 1154474054, issued on Jan 22, 2007. Check the license (Oklahoma 1466, as entered in NPPES) with the Oklahoma board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Barrett Williams
- Credential
- PHD
- Primary taxonomy
- Health Service Psychologist 103TH0100X
- License number
- 1466 OK
Self-reported in NPPES; status is on the state search - Practice location
- 5310 E 31St St Ste 13, Tulsa, OK 74135
- Phone
- (918) 236-4000
- Enumerated
- Jan 22, 2007
- Record last updated
- Sep 25, 2024
- Fax
- (918) 236-4001
- Medicare enrollment
- Enrolled (PECOS I20241012000327); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest health service psychologist records → All 47 in Oklahoma → Look up another NPI →
Verify Barrett Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oklahoma board licenses this profession
Search for license 1466Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Oklahoma State UniversityStillwater, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Barrett Williams among 47 health service psychologist records in Oklahoma
Barrett Williams, PHD is one of 47 health service psychologist records with a practice address in Oklahoma. 13% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 17% of them.
- NPI issued2007 · 17% of these records are older, 68% newer
- In a Medicare fileYes · 13% of these records are
- In the CMS Doctors and Clinicians fileYes · 21% of these records are
- Graduated2023 · median 2006 among the 10 with a school on file
- Record last updated2024 · 68% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TH0100X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Health Service Psychologist providers in Oklahoma
There are 47 health service psychologist records in Oklahoma.
All 47 in Oklahoma → Every provider in Tulsa → Health Service Psychologist nationwide →
The 8 health service psychologist records with the nearest ZIP codes
- Brian Goetsch, PSY.D.Tulsa, OK 741351689122657
- Brit'Ny Stein, PH.D., HSP, NCSPTulsa, OK 741351447924964
- Faust Bianco, PH.D.Tulsa, OK 741361912043860
- Paula HildestadTulsa, OK 741361124355805
- Dana Satterlee, PSYDTulsa, OK 741361427390293
- Karen Lake, PHDTulsa, OK 741141861813115
- Susan Redwood, PHDTulsa, OK 741071144280751
- Ralph Lindsey, PH.D.Stillwater, OK 740741407070790
Common questions
What is Barrett Williams, PHD's NPI number?
Barrett Williams, PHD's National Provider Identifier (NPI) is 1154474054, issued on Jan 22, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Barrett Williams, PHD located?
The NPPES record lists a practice address at 5310 E 31St St Ste 13, Tulsa, OK, 74135. Phone: (918) 236-4000. Providers update this record themselves, so call before visiting.
How can I verify Barrett Williams, PHD's license?
NPPES lists Oklahoma license number 1466, as entered by the provider. Search the Oklahoma 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.