NPPES file of Aug 9, 2026

Nephrology Physician in Massachusetts

417 NPPES records list nephrology physician with a practice address in Massachusetts, 6 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 6 of 9.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RN0300X · 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, 206

  1. Boston206
  2. Worcester42
  3. Springfield17
  4. Burlington14
  5. Fall River8

Nephrology Physician records in Massachusetts

  1. Stephen Nelson, DOPittsfield, MA 012011962460634
  2. Julia Neuringer, M.D.Newton, MA 024611710933411
  3. Matthew Niemi, M.D.Worcester, MA 016551053548321
  4. Sagar Nigwekar, MDBoston, MA 021141710939848
  5. John Niles, MDBoston, MA 021141316912033
  6. Hiroki Nishimura, MDBoston, MA 021151376063792
  7. Pitchaphon Nissaisorakarn, MDBoston, MA 021141518340744
  8. Voravech Nissaisorakarn, MDEverett, MA 021491629562822
  9. Gary Noroian, MDLeominster, MA 014531447232046
  10. Conall O' Seaghdha, M.D.Boston, MA 021141497904379
  11. John O'Bell, MDFall River, MA 027201982657805
  12. Amanda O'Donnell, DOCambridge, MA 021391356839328
  13. Connor O'Neill-Dee, MDBoston, MA 021181194301051
  14. Ana Onuchic-Whitford, M.D.Boston, MA 021141205245743
  15. Efrain Otero Palacios, MDLeominster, MA 014531114379716
  16. Shanmugha Vigneshwar Padmanabhan, MBBSBoston, MA 022151215581517
  17. Julie Paik, M.D.Boston, MA 021151649460734
  18. Slawomir Pajak, M.D.North Dartmouth, MA 027471235105206
  19. Ragnar Palsson, M.D.Boston, MA 021141841551199
  20. Amar Pandit, MDWorcester, MA 016551316321326
  21. Kostas Papamarkakis, M.D.Worcester, MA 016081699160234
  22. Ankit Patel, M.D., PH.D.Boston, MA 021151710391677
  23. Janice Patel, MDConcord, MA 017421427238955
  24. Sagar Patel, MDFairhaven, MA 027191639301187
  25. Subhash Paudel, M.D.Plymouth, MA 023601710232012
  26. Amin Paulino, MDLawrence, MA 018411699022160
  27. Martha Pavlakis, MDBoston, MA 022151033107503
  28. Aditya Pawar, M.D.Boston, MA 022151841631900
  29. Shona Pendse, MDBoston, MA 021151396796686
  30. Ronald Perrone, MDBoston, MA 021111265541155
  31. Deep Phachu, M.D.Worcester, MA 016081912435736
  32. Julien Pham, MDBoston, MA 021141740483916
  33. Elizabeth Phipps, DOBoston, MA 021151851777874
  34. Michael Plager, MDGreenfield, MA 013011386635811
  35. Anthony Poindexter, MDWest Springfield, MA 010891356331474
  36. Martin Pollak, MDBoston, MA 022151720096738
  37. David Poppel, MDSpringfield, MA 011071992787659
  38. Theodore Post, M.D.Wellesley, MA 024811114061801
  39. Ali Poyan Mehr, M.D.Boston, MA 022151912164583
  40. Valerie Price, MDBoston, MA 021111114000254
  41. Shan Qin, M.D., PH.D.Dartmouth, MA 027471891138822
  42. Nicholas Quarshie, MDWorcester, MA 016551497990014
  43. Kevin Quiusky, M.D.Pittsfield, MA 012011063857118
  44. Nathan Raines, M.D. MPHBoston, MA 022151831579549
  45. Kenneth Ralto, M.D.Worcester, MA 016551770877193
  46. Anvitha Rangan, M.D.Boston, MA 021111801534383
  47. Durga Rao, M.D.Methuen, MA 018441770554370
  48. Leonida Rasenas, M.D.Woburn, MA 018011548326689
  49. Katherine Ravi, MD, MPHBoston, MA 021151578975280
  50. James Reimer, MDYarmouth Port, MA 026751831140599

Source: CMS NPPES, primary taxonomy 207RN0300X: records by practice city and the list of records, file of Aug 9, 2026.

Massachusetts ranks 2 of 51 per resident

  1. District of Columbia11.6
  2. Massachusetts6.0
  3. Maryland5.5
  4. New York5.4
  5. 50 states and D.C.4.0

Source: CMS NPPES, primary taxonomy 207RN0300X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

What the count covers

417 NPPES records list nephrology physician (207RN0300X) as their primary taxonomy with a practice address in Massachusetts: 6 per 100,000 residents against 4 nationally (50 states and D.C.). Boston has 206 of them (49%).

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. Georgia417
  2. North Carolina403
  3. New Jersey433
  4. Michigan376

States with a similar rate per 100,000

  1. Maryland5.5
  2. New York5.4
  3. Delaware5.0
  4. Pennsylvania5.0

The largest states

  1. California1,468
  2. Texas1,159
  3. New York1,049
  4. Florida840
  5. Pennsylvania651

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.