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Optum Allergy and Immunology - Smithtown, NY

Allergy & ImmunologySmithtown, NY

★★★★★4.9/5230 reviews across 4 platforms

Ratings by platform

  • Optum Official Provider Profile (Dr. Robyn Kreiner): 5.0 out of 5 stars (from 7 ratings on Optum site) (7)
  • Zocdoc (Dr. Robyn Kreiner): 5.0 out of 5 stars (from 1 review on Zocdoc) (1)
  • Zocdoc (Dr. Lauren Rothstein): 4.82 out of 5 stars (158)
  • Optum Official Provider Profile (Dr. David Wertheim): 5.0 out of 5 stars (from 64 ratings on Optum site) (64)

What patients say

Patients praise

  • Knowledgeable and thorough physicians
  • Friendly and helpful staff
  • Effective treatment plans that improve quality of life
  • Good communication and willingness to listen to patient concerns
  • Efficient appointment wait times

Common complaints

  • While generally highly rated, some medical settings can involve complexities with chronic conditions that require patience and ongoing evaluation.

In patients' words

"Within 2 visits my daughter is now on a medication that is exceptionally improving her quality of life. Dr wertheim truly cares about patients well being and is committed to helping find solutions."

Optum Patient Review for Dr. David Wertheim

"Dr. Wertheim was very thorough in reviewing my issues, and he discussed and explained everything in detail in an easy-to-understand manner."

Optum Patient Review for Dr. David Wertheim

How these reviews were compiled

Synthesized from public patient-review platforms as of Jul 11, 2026 — sources: [1][2][3][4][5][6][7][8].

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