NPPES file of Aug 9, 2026

Matthew Gregory Williams, OT

Occupational Therapist · Saint Louis, MO

Matthew Gregory Williams, OT is an occupational therapist with a practice address in Saint Louis, Missouri, and NPI 1215364690, issued on Oct 1, 2013. Check the license with the Missouri 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
1215364690
Name
Matthew Gregory Williams
Credential
OT
Primary taxonomy
Occupational Therapist 225X00000X
Practice location
5201 Mid America Plz Ste 2600, Saint Louis, MO 63129
Phone
(314) 487-7000
Enumerated
Oct 1, 2013
Record last updated
Mar 4, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(314) 487-7001
Medicare enrollment
Enrolled (PECOS I20190402002134); 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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8 nearest occupational therapist records → All 2,771 in Missouri → Look up another NPI →

Also registered at 5201 Mid America Plz Ste 2600

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Cory Heslin, MOSTOccupational Therapist1942853718
  2. Sofia Monarrez, OTR/LOccupational Therapist1508455114
  3. Madeline Redohl, MOT, OTR/LOccupational Therapist1497345854

Verify Matthew Gregory Williams in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Missouri board licenses this professionCheck 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 Missouri license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Axes Physical Therapy LLCSaint Peters, MO

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

Matthew Gregory Williams among 2,771 occupational therapist records in Missouri

Matthew Gregory Williams, OT is one of 2,771 occupational therapist records with a practice address in Missouri. 9% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 44% of them.

  • NPI issued2013 · 44% of these records are older, 53% newer
  • In a Medicare fileYes · 9% of these records are
  • In the CMS Doctors and Clinicians fileYes · 10% of these records are
  • Graduated2018 · median 2016 among the 269 with a school on file
  • Record last updated2019 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225X00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

674 occupational therapist records list a practice address in Saint Louis

They are 674 of the 27,605 NPPES records with a practice address in Saint Louis, and 2,771 occupational therapist records in Missouri.

All 2,771 in Missouri → Every provider in Saint Louis → Occupational Therapist nationwide →

The 8 occupational therapist records with the nearest ZIP codes

  1. Sarah Corry, OTR/LSt Louis, MO 631291588036966
  2. Kelly Fischer, OTRSaint Louis, MO 631291346396322
  3. Anna Guimbarda, MOTSaint Louis, MO 631291750817342
  4. Kandice Hardney, OTR/LSaint Louis, MO 631291073902847
  5. Cory Heslin, MOSTSaint Louis, MO 631291942853718
  6. James Landolt, OT/LSaint Louis, MO 631291649469065
  7. Sofia Monarrez, OTR/LSaint Louis, MO 631291508455114
  8. Olakunle Odunleye, OTR/LSaint Louis, MO 631291114654332

Common questions

What is Matthew Gregory Williams, OT's NPI number?

Matthew Gregory Williams, OT's National Provider Identifier (NPI) is 1215364690, issued on Oct 1, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Matthew Gregory Williams, OT located?

The NPPES record lists a practice address at 5201 Mid America Plz Ste 2600, Saint Louis, MO, 63129. Phone: (314) 487-7000. Providers update this record themselves, so call before visiting.

How can I verify Matthew Gregory Williams, OT's license?

Search the Missouri 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.