The 5 Best Allergists in Wilmington, DE
Board-certified allergy & asthma specialists practicing in Wilmington and Newark.
If over-the-counter antihistamines stopped working, or your symptoms run for months instead of weeks, a board-certified allergist-immunologist can test what you actually react to and treat the cause. That includes immunotherapy, which lowers your sensitivity over three to five years. Our editors picked the 5 specialists below from the wider Delaware list based on board certification, hospital and academic affiliations, and peer recognition.
Allergists in Wilmington at a Glance
- Specialists listed:
- 5, all board-certified in Allergy & Immunology
- Areas covered:
- Wilmington and Newark
- Practices:
- ENT & Allergy of Delaware, Private Practice, Nemours Children's Health
- Local pollen season:
- Oak and maple drive tree counts through April in northern Delaware. Grass peaks in late May and June, and ragweed runs from mid-August into October.
Compare Wilmington Allergists
| Allergist | Practice | Location | Known for |
|---|---|---|---|
| Gregory V. Marcotte, MD | ENT & Allergy of Delaware / ChristianaCare | Wilmington, DE | Asthma, Allergic rhinitis, Food allergies |
| Sokun Ky Bhatti, MD | ENT & Allergy of Delaware / ChristianaCare | Newark, DE | Allergy testing, Asthma, Environmental allergies |
| Junfang Jiao, MD, PhD | ENT & Allergy of Delaware / ChristianaCare | Newark, DE | Adult and pediatric allergy, Immunologic diseases, Asthma |
| Richard H. Kim, MD | Private Practice / ChristianaCare Affiliated | Wilmington, DE | Allergic and respiratory conditions, Asthma, Environmental allergies |
| Trong Le, MD | Nemours Children's Health | Wilmington, DE | Pediatric allergy and immunology, Food allergies, Asthma |
- 1
Gregory V. Marcotte, MD
ENT & Allergy of Delaware / ChristianaCare
Wilmington, DE
Board-certified in Adult and Pediatric Allergy & ImmunologySection Chief, Division of Allergy & Immunology, ChristianaCare Health SystemCastle Connolly Top Doctor (2024)Philadelphia Magazine Top DoctorDr. Marcotte serves as Section Chief for the Division of Allergy & Immunology at ChristianaCare Health System, Delaware's largest health care organization, and practices with ENT & Allergy of Delaware. He is board certified in both adult and pediatric allergy and immunology and has been voted by physician peers as one of the best allergists in Delaware annually, with Castle Connolly Top Doctor recognition in 2024.
Areas of focus: Asthma · Allergic rhinitis · Food allergies · Drug allergy · Immunotherapy
Visit practice website → - 2
Sokun Ky Bhatti, MD
ENT & Allergy of Delaware / ChristianaCare
Newark, DE
Board-certified in Allergy & ImmunologyCastle Connolly Top Doctor (2024, multiple consecutive years)Philadelphia Magazine Top Doctor (multiple years)Dr. Bhatti is a board-certified allergist and immunologist affiliated with ChristianaCare and ENT & Allergy of Delaware, treating patients across the Wilmington and Newark area. She has been recognized as a Castle Connolly Top Doctor for multiple consecutive years and as a Philadelphia Magazine Top Doctor, placing her among the top 7% of physicians nationally.
Areas of focus: Allergy testing · Asthma · Environmental allergies · Immunotherapy · Pediatric and adult allergy
Visit practice website → - 3
Junfang Jiao, MD, PhD
ENT & Allergy of Delaware / ChristianaCare
Newark, DE
Board-certified in Allergy & ImmunologyBoard-certified in Internal MedicinePhD in Molecular Biology, University of DelawareCastle Connolly Top Doctor (2024)Dr. Jiao is a board-certified allergist-immunologist and PhD scientist, combining clinical expertise with deep research training in molecular biology and virology from the University of Delaware, University of Pennsylvania, and Children's Hospital of Philadelphia. He completed his allergy fellowship at Washington University in St. Louis/St. Louis Children's Hospital and has received Castle Connolly Top Doctor recognition.
Areas of focus: Adult and pediatric allergy · Immunologic diseases · Asthma · Research-informed immunotherapy
Visit practice website → - 4
Richard H. Kim, MD
Private Practice / ChristianaCare Affiliated
Wilmington, DE
Board-certified in Allergy & ImmunologyBoard-certified in Internal MedicineDr. Kim has been in private practice in allergy and immunology in Wilmington, Delaware, since 1991, making him one of the state's longest-tenured allergists. He is board certified in both internal medicine and allergy & immunology and is affiliated with ChristianaCare Hospitals, providing care to the greater Wilmington area.
Areas of focus: Allergic and respiratory conditions · Asthma · Environmental allergies · Immunotherapy
- 5
Trong Le, MD
Nemours Children's Health
Wilmington, DE
Board-certified in Allergy & ImmunologyBoard-certified in PediatricsAffiliated with Nemours Children's Hospital, DelawareDr. Le is a board-certified pediatric allergist-immunologist at Nemours Children's Health in Wilmington, one of Delaware's leading academic children's health systems. He is affiliated with Nemours Children's Hospital, Delaware, providing allergy and immunology care for infants, children, and adolescents across the state.
Areas of focus: Pediatric allergy and immunology · Food allergies · Asthma · Eczema · Immune deficiency
Allergy Season in Wilmington
Oak and maple drive tree counts through April in northern Delaware. Grass peaks in late May and June, and ragweed runs from mid-August into October.
Bring dates to your appointment. An allergist can narrow the list of suspects much faster when you can say “this started the second week of April” and match it against what was actually in the air.
- Today's pollen count in Wilmington for tree, grass, and weed levels plus a 5-day forecast
- Wilmington air quality for ozone and particle pollution, which make pollen symptoms worse
How We Picked These Wilmington Allergists
Our editorial team reviewed allergy and immunology specialists practicing across northern Delaware and selected these 5 on:
- Board certification in Allergy & Immunology (ABAI)
- Hospital and academic affiliations with respected medical centers
- Peer recognition, including Top Doctor awards and professional society roles
- Practice reputation and years treating allergy and asthma patients
- Coverage across the metro, so the list is not all one hospital system
These listings are editorial picks, not paid placements or medical endorsements, and we have no financial relationship with any provider listed. Availability, insurance participation, and credentials change. Verify directly with the practice before booking. This page is for informational purposes and is not medical advice.
Frequently Asked Questions
Who are the best allergists in Wilmington?
Our editors picked 5 board-certified allergist-immunologists practicing in northern Delaware: Gregory V. Marcotte, MD at ENT & Allergy of Delaware / ChristianaCare in Wilmington; Sokun Ky Bhatti, MD at ENT & Allergy of Delaware / ChristianaCare in Newark; Junfang Jiao, MD, PhD at ENT & Allergy of Delaware / ChristianaCare in Newark; Richard H. Kim, MD at Private Practice / ChristianaCare Affiliated in Wilmington; Trong Le, MD at Nemours Children's Health in Wilmington. All are board-certified in Allergy & Immunology.
When is allergy season in Wilmington?
Oak and maple drive tree counts through April in northern Delaware. Grass peaks in late May and June, and ragweed runs from mid-August into October.
See today's pollen count in Wilmington →Do I need a referral to see an allergist in Wilmington?
That depends on your insurance plan, not your city. Most PPO plans let you book straight with an allergist. HMO plans usually want a referral from your primary care doctor first. Call the practice or your insurer before you book.
How much does an allergist visit cost in Wilmington?
A first visit with a specialist typically runs $150 to $300 without insurance, and skin testing for a panel of environmental allergens usually adds $200 to $1,000 depending on how many allergens are tested. With insurance you pay your specialist copay, though testing is often billed separately. Ask the office for a cost estimate and their billing codes when you book.
What should I bring to my first allergist appointment?
Bring a list of your symptoms and the dates they flared, every medication you take including over-the-counter ones, your insurance card, and any past test results. Stop antihistamines 5 to 7 days before skin testing, since they can blunt the results. Confirm the exact timing with the office.
Check Wilmington pollen levels to match your flare dates →Are these Wilmington allergists accepting new patients?
That changes month to month, so call the practice to check. These are editorial picks, not paid placements, and we have no financial relationship with any provider listed. Verify current credentials, availability, and insurance participation directly with the office before you book.
Allergists in Nearby Cities
Before You Call
Start a symptom log this week. Note the day, what you felt, and what the pollen count was. Two or three weeks of that turns a vague “my allergies are bad” into something an allergist can work from.
- Check Wilmington pollen levels today
- See all Delaware allergists
- Read our allergy guides on symptoms, seasons, and relief