NPPES file of Aug 9, 2026

Hematology (Internal Medicine) Physician in Illinois

47 NPPES records list hematology (internal medicine) physician with a practice address in Illinois, 0.4 per 100,000 residents, the 19th highest rate of 48. Chicago and Evanston have the most; each record links to the provider's NPI and the Illinois license search.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RH0000X · method

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

Chicago has the most, 31

  1. Chicago31
  2. Evanston4
  3. Maywood3
  4. Glenview2
  5. Carterville1

Hematology (Internal Medicine) Physician records in Illinois

  1. Angela Ai, MDMaywood, IL 601531982282364
  2. Anjana Chandran, MDChicago, IL 606161902292253
  3. Irene Dehghan-Paz, MDChicago, IL 606121801053905
  4. Kunal Desai, MD MBA MSChicago, IL 606121982100012
  5. Radwan Diab, M.D.Decatur, IL 625261699398297
  6. Neil Dunavin, M.D.Zion, IL 600991578798369
  7. Michael Ellison, MDGlenview, IL 600251740357797
  8. Olga Frankfurt, MDChicago, IL 606111962492611
  9. Estefania Gauto-Mariotti, MDMaywood, IL 601531972032621
  10. Sefer Gezer, M.D.Chicago, IL 606121700845153
  11. Alla Gimelfarb, MDGlenview, IL 600261578721254
  12. David Green, MDChicago, IL 606111053340364
  13. Stephanie Gregory, M.D.Chicago, IL 606121356300719
  14. David Grinblatt, MDEvanston, IL 602011548285372
  15. Helen Gue, MDChicago, IL 606091326151796
  16. Jagoda Jasielec, M.D.Chicago, IL 606371508039249
  17. Yogesh Jethava, MDPark Ridge, IL 600681841622701
  18. James Jordan, M.D.Downers Grove, IL 605151922430842
  19. Lynne Kaminer, MDEvanston, IL 602011861423139
  20. Jason Kaplan, MDEvanston, IL 602011669590873
  21. Jaya Kasturi, M.D.Melrose Park, IL 601601548228711
  22. Deborah Katz, MDChicago, IL 606121396901500
  23. Nadia Khan, MDChicago, IL 606071659531499
  24. Hosam Khayal, MDChicago, IL 606121144271206
  25. Seo-Hyun Kim, M.D.Chicago, IL 606121710253992
  26. Hau Kwaan, MDChicago, IL 606111164537825
  27. Melissa Larson, M.D.Chicago, IL 606121912967688
  28. Deepak Malhotra, M.D.Carterville, IL 629181023078797
  29. Jayesh Mehta, MDChicago, IL 606111790718617
  30. Jennifer Obel, MDEvanston, IL 602011255463451
  31. Kathleen Phelan, M.D.Chicago, IL 606071932363447
  32. John QuigleyChicago, IL 606121912010323
  33. Emma RabinovichChicago, IL 606121568993053
  34. Istvan Redei, M.D.Chicago, IL 606741306818109
  35. Matias Sanchez, MDChicago, IL 606121699115246
  36. Ari SeifterOrland Park, IL 604671851785091
  37. Seema Singhal, MDChicago, IL 606111013940501
  38. Brady Stein, MDChicago, IL 606111134275845
  39. Robert Stein, MDChicago, IL 606931245230309
  40. Rebecca Steuer, MDChicago, IL 606071912535238
  41. Martin Tallman, MDChicago, IL 606111154340792
  42. Stephanie Tsai, M.D.Maywood, IL 601531013144260
  43. Celalettin Ustun, MDChicago, IL 606121013010487
  44. Parameswaren Venugopal, M.D.Chicago, IL 606121093774465
  45. Anaadriana Zakarija, MDChicago, IL 606111235244773
  46. Maryam ZiaChicago, IL 606121083930101
  47. Elisa Zucchetti, MDChicago, IL 606121699466649

Source: CMS NPPES, primary taxonomy 207RH0000X: records by practice city and the list of records, file of Aug 9, 2026.

Illinois ranks 19 of 48 per resident

  1. Washington0.4
  2. Maine0.4
  3. New Jersey0.4
  4. Illinois0.4
  5. Rhode Island0.4
  6. Missouri0.4
  7. 50 states and D.C.0.4

Source: CMS NPPES, primary taxonomy 207RH0000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

85.1% of these records appear in a Medicare file, against 80.5% 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. Illinois85.1%
  2. United States80.5%

Hematology (Internal Medicine) Physician records in Illinois, measured

  • In a Medicare file40 of 47 · 85.1% here, 80.5% nationally
  • In the CMS Doctors and Clinicians file31 · 66.0% here, 70.8% nationally
  • Not updated in five years or more29 · 61.7% here, 46.9% nationally
  • Median graduation year2003 · the 31 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RH0000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

47 NPPES records list hematology (internal medicine) physician (207RH0000X) as their primary taxonomy with a practice address in Illinois: 0.4 per 100,000 residents against 0.4 nationally (50 states and D.C.). Chicago has 31 of them (66%).

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. Michigan57
  2. New Jersey37
  3. Washington34
  4. Maryland33

States with a similar rate per 100,000

  1. Missouri0.4
  2. Kansas0.3
  3. Tennessee0.3
  4. Utah0.3

The largest states

  1. California175
  2. New York161
  3. Minnesota128
  4. Massachusetts117
  5. Ohio89

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.