NPPES file of Aug 9, 2026

Behavior Analyst in Massachusetts

4,718 NPPES records list behavior analyst with a practice address in Massachusetts, 67 per 100,000 residents, the 2nd highest rate of 51. Worcester and Natick have the most; each record links to the provider's NPI and the Massachusetts license search. Page 65 of 95.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 103K00000X · method

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

Worcester has the most, 312

  1. Worcester312
  2. Natick235
  3. Milford191
  4. Danvers184
  5. Marlborough150

Behavior Analyst records in Massachusetts

  1. Damaris NovaNorwell, MA 020611811634942
  2. Brittany NoyesBeverly, MA 019151457846826
  3. Francine NtunzwenimanaWorcester, MA 016041003701269
  4. Lyndsey NunesHudson, MA 017491568765600
  5. Jenifer NunezAttleboro, MA 027031073091930
  6. Lee NunezNorth Adams, MA 012471548773112
  7. Lynde NunnWorcester, MA 016071477124345
  8. Tiia Nurmikko-PappasWorcester, MA 016071710235577
  9. Kylie NuttallChelmsford, MA 018241386210722
  10. Andrew Nuzzolilli, M.S., BCBA, LABAMarlborough, MA 017521659985786
  11. Eunice NwokeLunenburg, MA 014621194382010
  12. Ashley NyeMarion, MA 027381992166946
  13. Emily O'Brien, MS, BCBA, LABAWeston, MA 024931205479029
  14. Erin O'BrienSouth Yarmouth, MA 026641629568944
  15. Garrett O'BrienAmherst, MA 010021497216311
  16. Kaylee O'BrienWorcester, MA 016071043180912
  17. Kevin O'BrienRockland, MA 023701053959916
  18. Taylor O'BrienRandolph, MA 023681063817377
  19. Caley O'ConnellChelmsford, MA 018241699255661
  20. Carolyn O'Connell, BCBAAbington, MA 023511902393424
  21. Kimber O'Connell, MA, BCBA, LABAActon, MA 017201376723197
  22. Nicole O'Connell, MS, BCBA LABAPeabody, MA 019601154032324
  23. Shelagh O'ConnellDanvers, MA 019231497121883
  24. Stephanie O'Connell, MS,BCBAFramingham, MA 017011518482553
  25. Kendra O'ConnorWeymouth, MA 021891366125593
  26. Patricia O'Connor, BCBAShrewsbury, MA 015451821517558
  27. Yvonne O'Connor, MA, BCBAHarwich, MA 026451164937041
  28. Deirdre O'Donnell, B.A.Canton, MA 020211487009981
  29. Jessica O'DonnellBoston, MA 021091255993622
  30. Kacey O'GaraEast Bridgewater, MA 023331538613344
  31. Andrea O'HaraPocasset, MA 025591861824112
  32. Jaime O'KarmaWest Springfield, MA 010891598057614
  33. Amanda O'Keefe, MEDMilford, MA 017571225382989
  34. Sarah O'LearyWatertown, MA 024721306198882
  35. Laura O'MalleyWaltham, MA 024511063725026
  36. Samantha O'MalleyBrockton, MA 023011356952378
  37. Elizabeth O'Neil, BCBA, LABANorwell, MA 020611982123832
  38. Jennifer O'NeilSturbridge, MA 015181033989728
  39. Jessica O'NeilNatick, MA 017601235512211
  40. James O'Neill, BCBASpringfield, MA 011051194090746
  41. Jane O'NeillPeabody, MA 019601912595026
  42. Sean O'NeillAmherst, MA 010021669933206
  43. Mary O'Reilly, M.S.EDHingham, MA 020431396121018
  44. Mary Jean O'Reilly, PH.D., BCBAFlorence, MA 010621467910364
  45. Valerie O'Reilly, M.A., BCBA, LABARandolph, MA 023681356715775
  46. Johnna O'SullivanNorwell, MA 020611194544049
  47. Samantha O'Toole, MSBrockton, MA 023011760009336
  48. Kiely ObertWorcester, MA 016051023626660
  49. Alexandrea Obey-FabiyiWoburn, MA 018011144959586
  50. Maria ObrienWest Springfield, MA 010891245990860

Source: CMS NPPES, primary taxonomy 103K00000X: records by practice city and the list of records, file of Aug 9, 2026.

Massachusetts ranks 2 of 51 per resident

  1. Nevada142
  2. Massachusetts67
  3. Hawaii63
  4. Florida60
  5. 50 states and D.C.32

Source: CMS NPPES, primary taxonomy 103K00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

0.1% 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. Massachusetts0.1%
  2. United States0.1%

Behavior Analyst records in Massachusetts, measured

  • In a Medicare file5 of 4,718 · 0.1% here, 0.1% nationally
  • In the CMS Doctors and Clinicians file10 · 0.2% here, 0.1% nationally
  • Not updated in five years or more2,819 · 59.7% here, 47.0% nationally
  • Median graduation year2018 · the 10 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 103K00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

4,718 NPPES records list behavior analyst (103K00000X) as their primary taxonomy with a practice address in Massachusetts: 67 per 100,000 residents against 32 nationally (50 states and D.C.). Worcester has 312 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. Nevada4,540
  2. New York5,183
  3. Pennsylvania3,770
  4. New Jersey3,766

States with a similar rate per 100,000

  1. Hawaii63.5
  2. Florida60.0
  3. California52.2
  4. New Mexico47.5

The largest states

  1. California20,348
  2. Florida13,565
  3. Texas5,837
  4. New York5,183
  5. Nevada4,540

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.