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About

Summary: Diane L. Ozog, MD, SC (drdianeozog.com) is a private medical practice based in Lombard, Illinois, with four offices nationwide (including Naperville, IL). The practice specializes in allergy and asthma treatment, chronic sinusitis, non-allergic nasal symptoms, and general healthcare. They operate under the alias Dr. Diane Ozog & Associates and provide services related to allergy management and related ENT concerns. The practice appears to have a modest online presence and mixed reviews, with a small local footprint and limited web traffic. For Naperville-specific care, contact the Naperville office at or near 1331 W 75th St Ste 303, Naperville, IL 60540.

Clinic Type

Allergy, Asthma & Immunology

Address

1288 Rickert Dr, Suite 100, Naperville, IL 60540

Phone

630-652-0606

Email

Opening Hours

See https://www.drdianeozog.com/hours-schedules/ for current hours

Services Offered

  • Allergy and Immunology
  • Asthma treatment
  • Allergic rhinitis
  • Nasal symptoms
  • Chronic sinusitis
  • Allergy skin testing
  • Patch testing
  • Oral food challenges
  • Pulmonary function testing
  • Allergen immunotherapy
  • Nucala
  • Xolair
  • Fasenra
  • Dupixent
  • Tezspire
  • Drug challenges
  • Penicillin skin testing
  • Sublingual immunotherapy tablets (SLIT)

Technology & Equipment

  • Allergen Immunotherapy
  • Pulmonary Function Testing
  • SLIT (Sublingual Immunotherapy)

Team

  • Dr. Diane Ozog, MD — Allergy & Immunology Physician

Insurance & Payment

Online Bill Pay, New Payment Policy, PayPal for online payments, PAYPAL Online Bill Payments

Languages Spoken

  • English

Pricing

  • Office visit and consultation fees not listed on page

Current Offers

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FAQs

What conditions do you treat?

Allergies, asthma, non-allergic nasal symptoms, chronic sinusitis, and related conditions.

What are the current office hours for June and July 2026?

OFFICE AVAILABILITY – JUNE 2026 & JULY 2026. Practice Schedule & Hours for June & July 2026.

What are the safety protocols in the office?

Current Office Protocols & Flu Shots Availability: limit waiting room traffic; call when you arrive; minors accompanied by one adult; adults enter with another adult if medically required.

Awards & Accreditations

  • Awarded Chicago’s best Allergy and Immunology Physician – Chicago Magazine 2022
  • Top Women Doctor in Asthma, Allergy & Immunology 2024
  • Selected as TOP WOMEN DOCTOR in Allergy, Asthma & Immunology (Year 2024)

Photos

What Patients Say

Overall sentiment across review platforms: positive

  • US News Doctors (Dr. Asya Segalene): 5 out of 5 stars (based on 57 ratings across the internet) (57 ratings)
  • Birdeye (AllerVie Health): 4.5 out of 5 stars (88 reviews)
  • Healthgrades (Dr. Asya Segalene): 4.7 out of 5 stars (36 ratings)
  • WebMD (Dr. Ayesha Siddiqi): 3.5 out of 5 stars (15 ratings)

Patients praise

  • High patient satisfaction with medical knowledge and clinical expertise
  • Physicians noted for being thorough, compassionate, and good listeners
  • Effective treatment plans for chronic asthma and environmental allergies
  • Generally positive feedback for office staff helpfulness

Common complaints

  • Occasional complaints regarding administrative/billing issues
  • Isolated reports of poor bedside manner or communication style
  • Concerns regarding long wait times in some practices

"Dr. Segalene was patient, knowledgeable, amazing with our son... One of the best experiences we’ve had with a doctor in many years."

Healthgrades patient review

"Dr. Bharani is a fabulous physician. She is kind, compassionate, intelligent, and even calls patients at home for follow-up..."

RateMDs patient review

"She was extremely rude, critical, unempathetic, and condescending throughout my entire visit."

WebMD patient review (regarding Dr. Ayesha Siddiqi)

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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