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Delaware Valley Allergy
Also known as Thomas E. Klein MD PC

Same Great Practice, Same Great Care

At Delaware Valley Allergy, we are dedicated to providing compassionate, high quality care to patients of all ages.  Our board-certified physicians are committed to improving your health so that you can fully participate in activities at work, school or sports.  

We emphasize open lines of communication in our practice. To improve the quality of medical care, we encourage questions and enjoy teaching our patients about allergies and asthma. We are thorough in providing written instructions and informational brochures to help our patients improve rapidly and to get the most out of their medical care.

We will communicate with your primary care physician about our findings and recommendations, and reach out to your other providers to coordinate care in complicated cases.

We take pride in providing a caring environment and building a strong doctor-patient relationship.  Our pledge is to treat your family members like they are our own.

Meet the Doctors

Learn Who We Are

  • Dr.
    Michael Prematta, M.D.
    Doctor

    Dr. Michael Prematta was born in Reading, PA in 1979. He earned a Bachelor of Science in Chemical Engineering at Penn State University in 2001 before completing medical school at the Penn State University College of Medicine in 2005.

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  • Dr.
    Tracy Prematta, M.D.
    Doctor

    Dr. Tracy Prematta was born in Philadelphia, PA and was raised in Williamstown, NJ. She attended college at DeSales University and graduated Summa Cum Laude in 2001 before enrolling in medical school at the Pennsylvania State University College of Medicine.

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  • Dr.
    Juen Kim, M.D.
    Doctor

    Dr. Juen Kim was born in Michigan and grew up in East Lansing, Michigan. She did her undergraduate studies and medical school at the University of Michigan in Ann Arbor, Michigan before pursuing a pediatrics residency at DeVos Children’s Hospital in Grand Rapids, Michigan.

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  • Dr.
    Sujal Ghelani, D.O.
    Doctor

    Dr. Sujal Ghelani is a Texas native who joined Delaware Valley Allergy in 2021. A graduate of University of Texas with a B.S. in Chemical Engineering, he received his medical degree from UMDNJ – School of Osteopathic Medicine in South Jersey, now Rowan University.

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  • Thomas E. Klein, M.D. - RETIRED
    Founder of Thomas E Klein MD PC (Klein Allergy)

    Dr. Thomas Klein was born in New York City in 1957. At the age of 16 he started college at Rensselaer Polytechnic Institute in Troy, New York where he graduated with honors. He earned his medical degree from Albany Medical College in 1980 at the age of 22 and then began five years of additional training.

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Our Location

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Hours of Operation

Our Regular Schedule

Havertown

Monday:

8:30 am-6:00 pm

Tuesday:

8:00 am-6:30 pm

Wednesday:

8:30 am-6:00 pm

Thursday:

9:00 am-7:30 pm

Friday:

7:30 am-5:00 pm

Saturday:

Closed

Sunday:

Closed

Riddle Hospital

Monday:

7:30 am-5:30 pm

Tuesday:

9:30 am-7:00 pm

Wednesday:

Closed

Thursday:

8:30 am-5:00 pm

Friday:

Closed

Saturday:

Closed

Sunday:

Closed

Lankenau Hospital

Monday:

Closed

Tuesday:

Closed

Wednesday:

8:00 am-4:00 pm

Thursday:

Closed

Friday:

Closed

Saturday:

Closed

Sunday:

Closed

Glen Mills

Monday:

Closed

Tuesday:

Closed

Wednesday:

Closed

Thursday:

Closed

Friday:

8:30 am-5:00 pm

Saturday:

Closed

Sunday:

Closed