NPPES file of Aug 9, 2026

Sleep Medicine (Internal Medicine) Physician in Massachusetts

34 NPPES records list sleep medicine (internal medicine) physician with a practice address in Massachusetts, 0.5 per 100,000 residents, the 12th highest rate of 48. Boston and Springfield have the most; each record links to the provider's NPI and the Massachusetts license search.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RS0012X · 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, 23

  1. Boston23
  2. Springfield3
  3. Auburn2
  4. Brighton1
  5. Gardner1

Sleep Medicine (Internal Medicine) Physician records in Massachusetts

  1. Anjali Ahn, M.D.Boston, MA 022151467566182
  2. Amit Anand, M.D.Boston, MA 021351528099447
  3. Wassim Assaf, MDAuburn, MA 015011548400278
  4. Samia Ayub, M.B.B.SBoston, MA 021151801160668
  5. Neil Bach, MDGreenfield, MA 013011407819626
  6. Salma Batool-Anwar, MBBS, MPHBoston, MA 021301285624916
  7. Elizabeth BengeBoston, MA 021151144857202
  8. Suzanne Bertisch, M.D., M.P.H.Boston, MA 021151710078936
  9. Rohit Budhiraja, M.D.Boston, MA 021111497772164
  10. Nilika Chaudhary, MDBoston, MA 021301396163986
  11. Ting-Hsu Chen, MDBoston, MA 021321235163643
  12. Chloe Deng, D.O.Auburn, MA 015011033735428
  13. Stephen Derose, M.D., M.S.H.S.Springfield, MA 011071710272810
  14. Lawrence Epstein, M.D.Boston, MA 021301811978711
  15. Olabimpe Fashanu, M.DBoston, MA 021301376813329
  16. Christine Fitzgibbons, M.D.Westborough, MA 015811194771220
  17. Daniel Gottlieb, M.D.Boston, MA 021321407813124
  18. Seyni Gueye-Ndiaye, M.D.Boston, MA 021151932657822
  19. Rakesh Gupta, M.D.Somerset, MA 027261639120561
  20. Mehtap Haktanir Abul, M.D.Boston, MA 022151265979421
  21. Syed Moin Hassan, M.D.Boston, MA 021151295186187
  22. Eric Heckman, M.D.Boston, MA 021181861665358
  23. Khalid Ismail, MDBoston, MA 021111649287277
  24. Nidhi Jain, M.B.B.S.Boston, MA 021111972295327
  25. Sogol Javaheri, MDBoston, MA 021151417185661
  26. Shih Hao Lin, MDBoston, MA 021181386932549
  27. Yifeng Lu, DOSpringfield, MA 011071417690827
  28. Eva Mok, M.D.Springfield, MA 011071124318233
  29. Aylin Ozsancak, M.D.Boston, MA 021111912151796
  30. Stuart Quan, MDBoston, MA 021301609957281
  31. Neil Shore, MDSalem, MA 019701346243698
  32. Robert Thomas, M.D.Boston, MA 022151356314983
  33. Joseph Walek, MDGardner, MA 014401902891435
  34. David Wellman, M.D.Brighton, MA 021351578596409

Source: CMS NPPES, primary taxonomy 207RS0012X: records by practice city and the list of records, file of Aug 9, 2026.

Massachusetts ranks 12 of 48 per resident

  1. Connecticut0.5
  2. Oregon0.5
  3. Kentucky0.5
  4. Massachusetts0.5
  5. Delaware0.5
  6. Vermont0.5
  7. 50 states and D.C.0.3

Source: CMS NPPES, primary taxonomy 207RS0012X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

82.4% of these records appear in a Medicare file, against 84.4% 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. Massachusetts82.4%
  2. United States84.4%

Sleep Medicine (Internal Medicine) Physician records in Massachusetts, measured

  • In a Medicare file28 of 34 · 82.4% here, 84.4% nationally
  • In the CMS Doctors and Clinicians file24 · 70.6% here, 70.6% nationally
  • Not updated in five years or more14 · 41.2% here, 43.7% nationally
  • Median graduation year2002 · the 24 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RS0012X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

34 NPPES records list sleep medicine (internal medicine) physician (207RS0012X) as their primary taxonomy with a practice address in Massachusetts: 0.5 per 100,000 residents against 0.3 nationally (50 states and D.C.). Boston has 23 of them (68%).

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. Georgia31
  2. Arizona28
  3. New Jersey27
  4. Tennessee27

States with a similar rate per 100,000

  1. Kentucky0.5
  2. Oregon0.5
  3. Connecticut0.5
  4. Wisconsin0.5

The largest states

  1. California129
  2. Pennsylvania58
  3. New York57
  4. Texas56
  5. Ohio53

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.