NPPES file of Aug 9, 2026

Occupational Therapy Assistant in Michigan

903 NPPES records list occupational therapy assistant with a practice address in Michigan, 9 per 100,000 residents, the 36th highest rate of 51. Grand Rapids and Troy have the most; each record links to the provider's NPI and the Michigan license search. Page 17 of 19.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 224Z00000X · method

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

Grand Rapids has the most, 59

  1. Grand Rapids59
  2. Troy31
  3. Detroit30
  4. Plymouth22
  5. Kalamazoo19

Occupational Therapy Assistant records in Michigan

  1. Grace TrapSouth Haven, MI 490901710660915
  2. Lauren TrelaDearborn, MI 481241033873443
  3. Melissa Tremblay, COTAMetamora, MI 484551962930321
  4. Amber Triggs, COTA/LAdrian, MI 492211992134985
  5. Andrea Trim, COTAGrand Haven, MI 494171952527988
  6. Lauren TromblyPlymouth, MI 481701063982536
  7. Daniel Turner, OTAMarquette, MI 498551851697882
  8. Elizabeth Uhlmann, COTA/LGrand Rapids, MI 495061992459226
  9. Julian Urban, COTA,CKTP,DORWarren, MI 480921447687769
  10. Karen Urbanski, COTAThree Rivers, MI 490931740470202
  11. Epiphanie UsengimanaHolt, MI 488421407413362
  12. Miriam UwiringiyimanaFarmington Hills, MI 483341467216184
  13. Heather VallanceDetroit, MI 482351083203509
  14. April Vanbeek, COTA/LFremont, MI 494121881939221
  15. Brenda Vandenberg, C.O.T.AWyoming, MI 494181669803094
  16. Jeanne Vander Waal, COTALLansing, MI 489101427325190
  17. Courtney Vanderhaegen, COTAMacomb, MI 480441922600527
  18. Sara VanderroestGrand Rapids, MI 495121184868341
  19. Mary Vanderwal, COTAL, DORGrand Rapids, MI 495461821554031
  20. Jennifer VandykenWyoming, MI 494181457780231
  21. Lindsey Vansloten, COTA/LSault Sainte Marie, MI 497831265890727
  22. Kaitlin Vargo, COTA/LRichmond, MI 480621003676628
  23. Maru Veda, COTALFraser, MI 480261245841428
  24. Elizabeth Vela, COTA/LWayland, MI 493481386422921
  25. Linda Velding, COTAGrant, MI 493271760602429
  26. Robin VerburgGrand Rapids, MI 495481457609216
  27. Samantha Vermillion, COTA/LWarren, MI 480931598471955
  28. Linda Viau, COTARiverview, MI 481931396951554
  29. Damian Villarreal, COTATaylor, MI 481801467937797
  30. Sarah Viviano, COTA/LFarmington Hills, MI 483361801489414
  31. Alyssa Voiland, COTA/LClinton Twp, MI 480361609179696
  32. Rebecca Volz, COTA/LLapeer, MI 484461437967916
  33. Elise Von Henner, COTA/LNiles, MI 491201578051942
  34. Ampapone Vongsiprasom, COTAAllegan, MI 490101538848981
  35. Sharae Wafer, C.O.T.ANovi, MI 483771922451533
  36. Brenda Wagner, COTA/LSpring Arbor, MI 492831992937585
  37. Wayne WagnerMount Pleasant, MI 488581437712700
  38. Carly Wagonschutz, COTA/LEast Lansing, MI 488231225566003
  39. Rachelle Walker, COTAMt Pleasant, MI 488581861928889
  40. Jodean Walters, OTASaginaw, MI 486031003376260
  41. Amy Walton, COTASaint Joseph, MI 490851912550864
  42. Deana Warner, COTA/LSaginaw, MI 486011790200053
  43. Patricia WarrenColdwater, MI 490361437712452
  44. Penny Warsop, COTALColdwater, MI 490361578126520
  45. Ashlyn WatersSterling Heights, MI 483101326886680
  46. Bethany Waters, COTA/LAnn Arbor, MI 481031154025997
  47. Frederick Watson, COTADetroit, MI 482191881355022
  48. Hannah Watson, COTA/LSaginaw, MI 486071811632508
  49. Kathy WatsonAlma, MI 488011699020453
  50. Shaun WatsonGrand Rapids, MI 495081508464785

Source: CMS NPPES, primary taxonomy 224Z00000X: records by practice city and the list of records, file of Aug 9, 2026.

Michigan ranks 36 of 51 per resident

  1. Maryland11
  2. Washington10
  3. Oregon9
  4. Michigan9
  5. Idaho8
  6. Vermont8
  7. 50 states and D.C.12

Source: CMS NPPES, primary taxonomy 224Z00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

0.0% of these records appear in a Medicare file, against 0.1% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. Michigan0.0%
  2. United States0.1%

Occupational Therapy Assistant records in Michigan, measured

  • In a Medicare file0 of 903 · 0.0% here, 0.1% nationally
  • In the CMS Doctors and Clinicians file0 · 0.0% here, 0.1% nationally
  • Not updated in five years or more607 · 67.2% here, 72.0% nationally

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 224Z00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

903 NPPES records list occupational therapy assistant (224Z00000X) as their primary taxonomy with a practice address in Michigan: 9 per 100,000 residents against 12 nationally (50 states and D.C.). Grand Rapids has 59 of them (7%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. Oklahoma948
  2. Washington806
  3. Tennessee1,009
  4. Arizona1,048

States with a similar rate per 100,000

  1. Oregon9.2
  2. Idaho8.3
  3. Vermont8.3
  4. Iowa8.3

The largest states

  1. Texas4,278
  2. Florida3,825
  3. New York2,732
  4. Ohio2,421
  5. Pennsylvania2,155

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record 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.