NPPES file of Aug 9, 2026

Dermatology Physician in Massachusetts

627 NPPES records list dermatology physician with a practice address in Massachusetts, 9 per 100,000 residents, the 2nd highest rate of 51. Boston and Worcester have the most; each record links to the provider's NPI and the Massachusetts license search. Page 12 of 13.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207N00000X · 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, 266

  1. Boston266
  2. Worcester35
  3. Wellesley26
  4. Burlington20
  5. Beverly15

Dermatology Physician records in Massachusetts

  1. Nicholas Theodosakis, MD, PHDBoston, MA 021141992235311
  2. Nils Thyresson, M.D.Haverhill, MA 018101932205382
  3. Janice Tiao, M.D.Boston, MA 021141093179533
  4. Isha Tiernan, M.D.Boston, MA 021111164804928
  5. Elizabeth Tkachenko, MDBoston, MA 021151144857392
  6. Elizabeth Tocci, MDWest Yarmouth, MA 026731073995163
  7. John Tomich, MDStoneham, MA 021801295705994
  8. Arthur Tong, MBBSWaltham, MA 024511619942661
  9. Jennifer Toyohara, M.D.Concord, MA 017421801054150
  10. Thanh-Nga Tran, MD, PHDMarlborough, MA 017521407977846
  11. Robin Travers, MDChestnut Hill, MA 024671578532388
  12. Valori Treloar, M.D.Newton, MA 024611972550606
  13. John Christopher Trinidad, M.D., M.P.HBoston, MA 021141457785610
  14. Hensin Tsao, M.D.Boston, MA 021141295719292
  15. Sandy Tsao, MDBoston, MA 021141942279740
  16. William Tsiaras, M.D., PH.D.Boston, MA 021151215255526
  17. Hillary Tsibris, M.D.Boston, MA 021151760745012
  18. Yana TurkowskiBoston, MA 021301841842937
  19. Lihi TzurBoston, MA 021111750887808
  20. Randy Ugent, M.D.Plainville, MA 027621326111576
  21. Steven Ugent, MDPlainville, MA 027621417050436
  22. Pearl Ugwu-Dike, MDBoston, MA 022151891426177
  23. Lily Uihlein, MD, JDBoston, MA 021151235398686
  24. Christine Urman, M.D.North Easton, MA 023561750576351
  25. Neelam Vashi, M.D.Boston, MA 021181871759076
  26. Aria Vazirnia, M.D.Boston, MA 021141528449519
  27. Sara Vazquez, MDBoston, MA 021151699520635
  28. Daniel Viders, MDAuburn, MA 015011558354407
  29. Suzanne Virnelli, M.D.Winchester, MA 018901982756581
  30. Ruth Ann Vleugels, MDBoston, MA 021151124154554
  31. Stephanie Von Csiky-SessomsWatertown, MA 024721780212795
  32. Tony Vu, MD, PHARMDBoston, MA 021111821739707
  33. Aubrey Wagenseller, M.D.Boston, MA 021181336582840
  34. Abigail Waldman, MDBoston, MA 021301598054926
  35. Richard Waldman, MDFall River, MA 027201851357313
  36. David Walker, D.O.Fall River, MA 027201477653020
  37. Andrew Walls, MDBoston, MA 021151386082873
  38. Michelle Walters, MDBoston, MA 021151467914861
  39. San Wan, M.D.Braintree, MA 021841295707123
  40. Andrew Wang, M.D.West Roxbury, MA 021321417184144
  41. Miaoyuan Wang, M.D.Brookline, MA 024461447679436
  42. David WartmanSpringfield, MA 011071578788659
  43. Heidi Wat, M.D.Boston, MA 021141891349403
  44. Margaret Wat, MDBeverly, MA 019151477972032
  45. Dylan Waterman, M.D.Burlington, MA 018051548689516
  46. Alice Watson, MD, MPHBoston, MA 021151538487392
  47. Frederick Wax, M.D.Plymouth, MA 023601275545089
  48. Pamela Weinfeld, MDWellesley, MA 024811386600443
  49. Qing Yu Weng, M.D.Cambridge, MA 021381174974968
  50. Stephen Werth, M.D.Quincy, MA 021691093762734

Source: CMS NPPES, primary taxonomy 207N00000X: records by practice city and the list of records, file of Aug 9, 2026.

Massachusetts ranks 2 of 51 per resident

  1. District of Columbia10.9
  2. Massachusetts9.0
  3. Connecticut7.0
  4. Rhode Island6.7
  5. 50 states and D.C.4.7

Source: CMS NPPES, primary taxonomy 207N00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

82.9% of these records appear in a Medicare file, against 84.6% 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. Massachusetts82.9%
  2. United States84.6%

Dermatology Physician records in Massachusetts, measured

  • In a Medicare file520 of 627 · 82.9% here, 84.6% nationally
  • In the CMS Doctors and Clinicians file445 · 71.0% here, 72.6% nationally
  • Not updated in five years or more363 · 57.9% here, 54.0% nationally
  • Median graduation year2008 · the 445 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207N00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

627 NPPES records list dermatology physician (207N00000X) as their primary taxonomy with a practice address in Massachusetts: 9 per 100,000 residents against 4.7 nationally (50 states and D.C.). Boston has 266 of them (42%).

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. Illinois647
  2. Pennsylvania681
  3. North Carolina507
  4. Ohio507

States with a similar rate per 100,000

  1. District of Columbia10.9
  2. Connecticut7.0
  3. Rhode Island6.7
  4. New Hampshire6.3

The largest states

  1. California2,083
  2. Florida1,213
  3. New York1,211
  4. Texas1,172
  5. Pennsylvania681

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.