NPPES file of Aug 9, 2026

Internal Medicine Physician in Connecticut

2,623 NPPES records list internal medicine physician with a practice address in Connecticut, 73 per 100,000 residents, the 4th highest rate of 51. New Haven and Hartford have the most; each record links to the provider's NPI and the Connecticut license search. Page 40 of 53.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207R00000X · method

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

New Haven has the most, 329

  1. New Haven329
  2. Hartford169
  3. Stamford131
  4. Bridgeport130
  5. Waterbury119

Internal Medicine Physician records in Connecticut

  1. Nitai Riegler, MDMilford, CT 064601225124514
  2. William Rifkin, MDWaterbury, CT 067081093789810
  3. Thomas Rinaldi, M.D.Newington, CT 061111366538746
  4. Bjorn Ringstad, MDNorth Haven, CT 064731699707448
  5. Edward Rippel, M.D.Hamden, CT 065171568405454
  6. Mildred Rivera, MDTorrington, CT 067901770089237
  7. John Rixon, M.D.West Hartford, CT 061071194818013
  8. Roula Rizk, MDManchester, CT 060401265440986
  9. Syed Rizvi, M.D.Waterbury, CT 067061033452776
  10. Howard Ro, M.D.Enfield, CT 060821457345605
  11. Jeffrey Robbins, MDHartford, CT 061021144227125
  12. Ronald Robbins, M.D.Middletown, CT 064571689770190
  13. Andrea Roberts, MDWest Haven, CT 065161316503212
  14. William Roberts, MD, MSCNew Haven, CT 065111093392862
  15. Gamaliel RocaDanbury, CT 068101477932697
  16. Jamie Roche, M.D.Hartford, CT 061021013010347
  17. Jennifer Rockfeld, M.D.New Haven, CT 065131659532091
  18. Diana Rodriguez, M.D.West Hartford, CT 061101942620927
  19. Marie Anjeliese RodriguezNew Haven, CT 065101003420977
  20. Estela Rodriguez Alonso, MDStamford, CT 069021134616691
  21. Shareen Rodriques, MDHartford, CT 061051396092425
  22. Eleonore Roesch, MDSouthington, CT 064891255560124
  23. Jeffrey Roeser, MDGuilford, CT 064371023506763
  24. Aida Roman, MD, MSFarmington, CT 060301558945626
  25. Elise Romanik, M.D.Southbury, CT 064881790730034
  26. John Romeo, M.D.Waterbury, CT 067081447661764
  27. Hinette Rosario, MDNew Haven, CT 065101346805173
  28. Julie Rosenbaum, MDNew Haven, CT 065111043284540
  29. Eric Rosenberg, MDWest Hartford, CT 061101417960337
  30. Ilene Rosenberg, MDMilford, CT 064601023118999
  31. Ralph Rosenberg, MDAvon, CT 060011902915713
  32. Remi Rosenberg, MDStamford, CT 069051932204203
  33. Hannah Rosenblum, M.D.New Haven, CT 065101043699135
  34. Brian Rosenhein, DOWaterbury, CT 067061982678058
  35. Myra Rosenstein, MDWest Hartford, CT 061191073642658
  36. David Rosenthal, M.D.New Haven, CT 065111972730653
  37. Donald Rosenthal, MDWaterbury, CT 067051063435170
  38. Michael Rosenthal, MDNew Haven, CT 065111740225879
  39. Aleksandra Rosinski, M.D.New Haven, CT 065191689932196
  40. William Rosner, M.D.West Haven, CT 065161114961083
  41. Joseph Ross, MD, MHSNew Haven, CT 065191467461335
  42. Victor Rossi, MDHartford, CT 061021750338109
  43. Stephen Rossner, M.D.Waterbury, CT 067021144250739
  44. Kylie RostadNew Haven, CT 065101679221162
  45. Peter Rostenberg, MDNew Fairfield, CT 068121538272117
  46. Jahangir Rouzbehani Selakhor, M.D.Danbury, CT 068101497377576
  47. Brita Roy, M.D.New Haven, CT 065101518101757
  48. David Roy, M.D.Plainville, CT 060621750377701
  49. Priya Roy, MDNew Britain, CT 060511730120494
  50. Stephen Rubenstein, M.D.Watertown, CT 067951407960990

Source: CMS NPPES, primary taxonomy 207R00000X: records by practice city and the list of records, file of Aug 9, 2026.

Connecticut ranks 4 of 51 per resident

  1. District of Columbia133
  2. Massachusetts97
  3. Rhode Island94
  4. Connecticut73
  5. Maryland63
  6. Hawaii63
  7. 50 states and D.C.44

Source: CMS NPPES, primary taxonomy 207R00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

81.2% of these records appear in a Medicare file, against 78.7% 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. Connecticut81.2%
  2. United States78.7%

Internal Medicine Physician records in Connecticut, measured

  • In a Medicare file2,130 of 2,623 · 81.2% here, 78.7% nationally
  • In the CMS Doctors and Clinicians file1,648 · 62.8% here, 61.4% nationally
  • Not updated in five years or more1,605 · 61.2% here, 55.4% nationally
  • Median graduation year2004 · the 1,646 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207R00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

2,623 NPPES records list internal medicine physician (207R00000X) as their primary taxonomy with a practice address in Connecticut: 73 per 100,000 residents against 44 nationally (50 states and D.C.). New Haven has 329 of them (13%).

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. Minnesota2,632
  2. Missouri2,604
  3. Tennessee2,596
  4. Arizona2,853

States with a similar rate per 100,000

  1. Maryland63.2
  2. Hawaii62.9
  3. New York61.7
  4. Delaware58.1

The largest states

  1. California17,696
  2. New York12,067
  3. Florida10,151
  4. Texas9,175
  5. Pennsylvania7,300

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.