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Optum Allergy and Immunology - Smithtown, NY

Allergy & Immunology • Smithtown, NY

About

Optum Allergy and Immunology - Smithtown is located at 50 Route 111 Suite 105 in Smithtown, NY. The clinic offers allergy and immunology services including allergy testing, asthma diagnostic testing, immunotherapy, eczema treatment, spirometry, and medication management for seasonal allergies and chronic conditions.

Clinic Type

Allergy & Immunology

Address

50 Route 111 Ste 105, Smithtown, NY 11787

Phone

+1-631-543-7607

Email

—

Opening Hours

| Monday | 9:00 AM - 5:00 PM | | --- | --- | | Tuesday | Closed | | Wednesday | 9:00 AM - 4:00 PM | | Thursday | Closed | | Friday | Closed | | Saturday | Closed | | Sunday | Closed |

Services Offered

  • Allergy & Immunology
  • Screening Evaluations
  • Imaging Services
  • Acute Conditions
  • Follow-Up Care
  • Spirometry
  • Eczema
  • Laboratory Studies
  • Allergy Testing
  • Asthma Diagnostic Testing
  • Immunotherapy
  • Referral Coordination
  • Medication Management
  • Seasonal Allergies
  • Chronic Disease Management
  • Preventive Care

Team

  • Lauren Rothstein, Allergy & Immunology — MD
  • Robyn Kreiner, Allergy & Immunology — MD

Insurance & Payment

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Languages Spoken

  • English

Photos

What Patients Say

Overall sentiment across review platforms: positive

  • 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)

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.

"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

Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].

Information sourced from the clinic's website as of July 11, 2026.

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