NPPES file of Aug 9, 2026

Dentist in Massachusetts

2,934 NPPES records list dentist with a practice address in Massachusetts, 42 per 100,000 residents, the 3rd highest rate of 51. Boston and Worcester have the most; each record links to the provider's NPI and the Massachusetts license search. Page 40 of 59.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 122300000X · method

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

Boston has the most, 745

  1. Boston745
  2. Worcester94
  3. Quincy65
  4. Cambridge60
  5. Springfield57

Dentist records in Massachusetts

  1. Joann O'Brien, D.M.D.Duxbury, MA 023321013390095
  2. Joseph O'Brien, D.M.D.Newton, MA 024591881758118
  3. Kerrie O'Brien, D.M.D.Milford, MA 017571740556505
  4. Kristen O'Brien, D.M.D.Billerica, MA 018211215456512
  5. Michael O'Brien, DDSNorthampton, MA 010601164448635
  6. Jill O'Connell, DMDAuburn, MA 015011356339162
  7. Edward O'Leary, DDSPeabody, MA 019601730102906
  8. Kayoko Obara, D.M.D.Brookline, MA 024451053570275
  9. Rachel Obeid, DMDBraintree, MA 021841780251678
  10. Barbara ObermaierBoston, MA 021151851870943
  11. Gabriel Ochoa, GENERAL DENTISTRYWorcester, MA 016101386655744
  12. Alfredo Ochoa CruzChelsea, MA 021501578377487
  13. John Oconnor, DDSLincoln, MA 017731225247380
  14. Frank Odlum, DDSBoston, MA 021111477782217
  15. Junko Ogawa, DMDNewton, MA 024591518469667
  16. Olubiyi Ogunjimi, DDS, MPHNorth Andover, MA 018451245469121
  17. Olufemi Oguntolu, D.M.D.Revere, MA 021511891873899
  18. Jeong Teag Oh, D.D.SWorcester, MA 016031497370621
  19. Vincent Oh, D.M.D.Dracut, MA 018261477900017
  20. Meera Ohri, D.M.D.Framingham, MA 017011225478084
  21. Erika Omansky, DMDBoston, MA 021131316194327
  22. Noor Omar, DMDPeabody, MA 019601205427291
  23. Robert Oneill, DMDRoslindale, MA 021311912921271
  24. Sydney Onos, DMDMilton, MA 021861417714379
  25. Richard Opler, D.D.S.Springfield, MA 011281467805853
  26. Karen Orazio, D.M.D.Belmont, MA 024781366641292
  27. Martyn Ormond, B.D.S, M.B.B.SBoston, MA 021201407298565
  28. John Orr, DMDSturbridge, MA 015661386307106
  29. Maria Ortiz AriasLynn, MA 019011831054832
  30. Oscar Ortiz Urrego, DDSChelsea, MA 021501528296688
  31. Claudia OrtuzarBoston, MA 021111629833744
  32. Miguel Ostos RaybaudiPittsfield, MA 012011023792603
  33. James Ostromecky, DDSSpencer, MA 015621063497907
  34. Julia Ostrovsky, DDSRoslindale, MA 021311447229257
  35. Michelle OstrovskyNorth Attleboro, MA 027601467019331
  36. Heddinah Otete, DENTAL GRADUATEMalden, MA 021481255063251
  37. Basel OtoomWest Tisbury, MA 025751437893245
  38. Nicolas Ouellet, DMDBoston, MA 021151376277111
  39. Jason Outlaw, DMD, DMSCBoston, MA 021261184144651
  40. Ruben Ovadia, DDSBoston, MA 021111457590036
  41. Michael Overbeck, D.D.S.Boston, MA 021091366468878
  42. John Owen, DMDNeedham, MA 024921972632503
  43. Tatiana OzoneBoston, MA 021111497621320
  44. Ammar Pabaney, DMDNorthborough, MA 015321588115240
  45. Anoli Pabari, D.M.DLawrence, MA 018401538370598
  46. Tarunjeet Pabla, DMDWorcester, MA 016091407011687
  47. Brenda Padron, DDSLynn, MA 019011427274232
  48. Aida Padron Costas, DMDChelsea, MA 021501962604330
  49. Hovhannes Pahlevanyan, DMDSpringfield, MA 011031861987547
  50. Mayank Pahwa, DMDPeabody, MA 019601710267794

Source: CMS NPPES, primary taxonomy 122300000X: records by practice city and the list of records, file of Aug 9, 2026.

Massachusetts ranks 3 of 51 per resident

  1. District of Columbia52
  2. Alaska49
  3. Massachusetts42
  4. California38
  5. Illinois36
  6. 50 states and D.C.28

Source: CMS NPPES, primary taxonomy 122300000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

57.9% of these records appear in a Medicare file, against 61.9% 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. Massachusetts57.9%
  2. United States61.9%

Dentist records in Massachusetts, measured

  • In a Medicare file1,698 of 2,934 · 57.9% here, 61.9% nationally
  • In the CMS Doctors and Clinicians file18 · 0.6% here, 0.7% nationally
  • Not updated in five years or more1,854 · 63.2% here, 68.3% nationally
  • Median graduation year2012 · the 18 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 122300000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

2,934 NPPES records list dentist (122300000X) as their primary taxonomy with a practice address in Massachusetts: 42 per 100,000 residents against 28 nationally (50 states and D.C.). Boston has 745 of them (25%).

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. Ohio2,780
  2. Washington2,767
  3. New Jersey2,742
  4. Pennsylvania3,339

States with a similar rate per 100,000

  1. California37.8
  2. Illinois36.0
  3. Colorado34.4
  4. Alaska49.5

The largest states

  1. California14,729
  2. Texas6,572
  3. Florida6,155
  4. New York5,918
  5. Illinois4,522

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.