Verified 2026 Physician Ranking

Top Allergists & Immunologists in Iowa, 2026

Published by Palm Beach County Medical Media Group · Last updated May 1, 2026

PBCMMG Excellence Certified \u2014 Recognizing Excellence in Healthcare

How this ranking was built: We applied PBCMMG's seven weighted criteria (board certification, years in active practice, disciplinary record, aggregate patient reviews, hospital affiliations, specialty training, peer recognition) to every allergy & immunology physician with active credentialing in Iowa. Sources: NPPES Registry, ABMS, state medical boards, aggregated public review data. Last reviewed May 2026.

  1. #1

    John Kammermeyer, MD

    Allergy & ImmunologyIowa, IA21+ years in practice

    John Kammermeyer, MD, practices allergy & immunology in Iowa, IA. NPI-verified active practice since 2005.

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  2. #2

    Marta Little, MD

    Allergy & ImmunologyTennessee, TN21+ years in practice

    Marta Little, MD, practices allergy & immunology in Iowa, IA. NPI-verified active practice since 2005.

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  3. #3

    Francisco Peralta, MD

    Allergy & ImmunologyIowa, IA20+ years in practice

    Francisco Peralta, MD, practices allergy & immunology in Iowa, IA. NPI-verified active practice since 2006.

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  4. #4

    Adrian Letz, MD

    Allergy & ImmunologyIowa, IA20+ years in practice

    Adrian Letz, MD, practices allergy & immunology in Iowa, IA. NPI-verified active practice since 2006.

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  5. #5

    James Wille, MD

    Allergy & ImmunologyIowa, IA20+ years in practice

    James Wille, MD, practices allergy & immunology in Iowa, IA. NPI-verified active practice since 2006.

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  6. #6

    Sean Stanga, MD

    Allergy & ImmunologyIowa, IA19+ years in practice

    Sean Stanga, MD, practices allergy & immunology in Iowa, IA. NPI-verified active practice since 2007.

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  7. #7

    Brad McClimon, MD

    Addiction MedicineIowa, IA19+ years in practice

    Brad McClimon, MD, practices addiction medicine in Iowa, IA. NPI-verified active practice since 2007.

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  8. #8

    Erin Rasmussen, MD

    Allergy & ImmunologyNorth Carolina, NC11+ years in practice

    Erin Rasmussen, MD, practices allergy & immunology in Iowa, IA. NPI-verified active practice since 2015.

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  9. #9

    Alick Feng, MD

    Addiction MedicineMinnesota, MN8+ years in practice

    Alick Feng, MD, practices addiction medicine in Iowa, IA. NPI-verified active practice since 2018.

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  10. #10

    Jay Brown, MD

    Addiction MedicineOregon, OR21+ years in practice
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  11. #11

    Barbara Muller, MD

    Allergy & ImmunologyIowa, IA21+ years in practice
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  12. #12

    Mackenzie Hines, MD

    Allergy & ImmunologyNorth Carolina, NC7+ years in practice
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  13. #13

    Ronald Graeff, MD

    Allergy & ImmunologyIowa, IA21+ years in practice
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  14. #14

    Jennifer Berge, MD

    Otolaryngology (ENT)Iowa, IA20+ years in practice
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  15. #15

    Holly Brown, MD

    Allergy & ImmunologyNorth Carolina, NC21+ years in practice
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  16. #16

    Michell Lozano Chinga, MD

    Allergy & ImmunologyFlorida, FL10+ years in practice
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  17. #17

    Tara Federly, MD

    Allergy & ImmunologyIowa, IA18+ years in practice
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  18. #18

    Cassie Wassink, MD

    Allergy & ImmunologyIowa, IA4+ years in practice
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  19. #19

    Andrea Jones, MD

    Concierge MedicineVirginia, VA6+ years in practice
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  20. #20

    Bharat Kumar, MD

    Addiction MedicineKentucky, KY15+ years in practice
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  21. #21

    Douglas Henrich, MD

    Otolaryngology (ENT)Iowa, IA20+ years in practice
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  22. #22

    Amy Yoder Dowden, MD

    Addiction MedicineIowa, IA20+ years in practice
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  23. #23

    Amir Abidov, MD

    Addiction MedicineIowa, IA7+ years in practice
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  24. #24

    David Redfern, MD

    Obstetrics & GynecologyMissouri, MO20+ years in practice
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  25. #25

    Mary Fasano, MD

    Addiction MedicineIowa, IA21+ years in practice
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  26. #26

    Whitney Molis, MD

    Allergy & ImmunologyIowa, IA20+ years in practice
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  27. #27

    Lyla Schweiger, MD

    Allergy & ImmunologyIowa, IA20+ years in practice
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  28. #28

    Jennifer Petts, DO

    Allergy & ImmunologyIowa, IA17+ years in practice
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  29. #29

    Gary Hunninghake, MD

    Addiction MedicineMassachusetts, MA21+ years in practice
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  30. #30

    Zuhair Ballas, MD

    Addiction MedicineIowa, IA21+ years in practice
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  31. #31

    Edward Nassif, MD

    Allergy & ImmunologyIowa, IA21+ years in practice
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  32. #32

    Benjamin Davis, MD

    Concierge MedicineIllinois, IL10+ years in practice
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  33. #33

    Stanley Horner, DO

    Allergy & ImmunologyMissouri, MO20+ years in practice
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  34. #34

    Daniel Hamilos, MD

    Addiction MedicineIowa, IA21+ years in practice
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  35. #35

    Vuong Nayima, DO

    Addiction MedicineIowa, IA15+ years in practice
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  36. #36

    Dana Al-Maajali, MD

    Allergy & ImmunologyIowa, IA4+ years in practice
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  37. #37

    David Wenger-Keller, MD

    Allergy & ImmunologyIowa, IA21+ years in practice
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  38. #38

    Ahmad Al-Shash, MD

    Allergy & ImmunologyIowa, IA20+ years in practice
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  39. #39

    Robert Colman, MD

    Allergy & ImmunologyIowa, IA20+ years in practice
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  40. #40

    Shayna Melvani, MD

    Addiction MedicineIllinois, IL14+ years in practice
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  41. #41

    Diana Bayer-Bowstead, DO

    Allergy & ImmunologyIowa, IA17+ years in practice
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  42. #42

    Karen Maves, MD

    Allergy & ImmunologyIowa, IA20+ years in practice
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  43. #43

    Michael McCubbin, MD

    PediatricsIowa, IA20+ years in practice
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  44. #44

    Ashley Stoner, MD

    Allergy & ImmunologyIowa, IA10+ years in practice
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  45. #45

    James Oggel, MD

    Allergy & ImmunologyIowa, IA21+ years in practice
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  46. #46

    Prudhvi Regula, MD

    Allergy & ImmunologyAlabama, AL8+ years in practice
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  47. #47

    Richard Zeaske, MD

    Allergy & ImmunologyIowa, IA21+ years in practice
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  48. #48

    Sarah Nimri, MD

    Addiction MedicineTexas, TX8+ years in practice
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  49. #49

    Felipe Javier, MD

    Allergy & ImmunologyIowa, IA21+ years in practice
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  50. #50

    Fadi Alkhatib, DO

    Addiction MedicineIowa, IA14+ years in practice
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  51. #51

    Javen Wunschel, DO

    Addiction MedicineIowa, IA12+ years in practice
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  52. #52

    Jeffrey Zavala, MD

    Concierge MedicineIowa, IA9+ years in practice
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