Dr. Boyan Hadjiev, MD

Dr. Boyan Hadjiev, MD

Allergy  |  
Male  |  
43 y/o

Accepting new patients

Dr. Boyan Hadjiev is top-rated board-certified allergist and internal medicine physician, serving adults and children in Manhattan and throughout the New York City region. With more than a decade in professional practice and dual certifications in internal medicine and allergy and immunology, Dr. Hadjiev is skilled in both traditional and novel techniques for the diagnosis and management of an array of medical issues, including hives, chronic sinus infections and nasal problems, skin and respiratory allergies, eczema, asthma, and throat infections and disorders. After earning his undergraduate degree in biology at the University of Michigan, Dr. Hadjiev completed his medical degree at the Cleveland Clinic-Case Western Reserve School of Medicine, followed by a residency in internal medicine and a fellowship in allergy and immunology at the North Shore – Long Island Jewish Healthcare System, an affiliate of the Albert Einstein College of Medicine. He is licensed to practice medicine and surgery in both New York and New Jersey, and his hospital affiliations include the North Shore – Long Island Jewish Health System, the Cabrini Medical Center, and St. Luke's-Roosevelt Hospital Center. Dr. Hadjiev is committed to offering the most advanced care options for his patients, specializing in standard as well as novel and emerging diagnostic and treatment methods aimed at achieving optimal results in patients of all ages. His strong dedication to his patients' unique medical needs, personal health histories and treatment preferences ensures each patient receives a customized plan of care focused on providing maximum health benefits. Dr. Hadjiev also believes strongly in educating his patients about their conditions as well as helping them understand all the options they have for the safest and most effective treatment. During office visits and evaluations, he ensures every patient receives the time and attention they need to feel fully informed and confident in their care, every step of the way. Dr. Hadjiev welcomes new patients at his practice on East 40th Street, and the practice accepts most major forms of medical insurance.

Allergy, Asthma, and Sinusitis P.C.

30 E 40th St Rm 1204

New York, NY 10016
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Accepted insurance

  • Accepts most major dental plans. Please contact our office for details.

Learn about Dr. Hadjiev

Be confident in your decisions by checking out your provider's top areas of care, education, patient reviews and more. Learn about finding the right doctor for you

Top Care Areas


See how frequently Dr. Hadjiev performs your care needs compared to other doctors.

Allergic Reaction
more than 85% of peers
Allergic Rhinitis
more than 83% of peers
Pollen Allergy
more than 78% of peers

Dr. Hadjiev's percentages are based on the rate of treatment compared to peers nationwide from insurance data. Learn more info about our data and this Top Care Areas component.

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Patient Testimonials

This content was provided by Dr. Hadjiev It always a refreshing and healing experience with Dr. Hadjiev. I trust no one else with my asthma and sinus conditions.

This content was provided by Dr. Hadjiev Dr Hadjiev has been one of the finest doctors I have been to. I have many severe allergy related conditions, and Dr. Hadjiev takes the time to listen and thoughtfully determine the necessary treatments.

Care Philosophy

This content was provided by Dr. Hadjiev "Our new practice, Advanced Allergy, Asthma and Sinusitis P.C., is located in the heart of Manhattan, New York, just a block away from Grand Central Station. It is a new practice dedicated to providing the most up-to-date treatment for adult and pediatric patients with allergy, asthma, sinus disease or disorders of the immune system. We offer world-class expertise and the highest standards in diagnostic testing and treatment for allergy, asthma and sinus disease.

Our treatment plans are based upon the latest practice parameters and recommendations in our field as published by the American Academy of Allergy, Asthma and Immunology and the American College of Allergy, Asthma and Immunology.

At Advanced Allergy, Asthma and Sinusitis P.C., we make extraordinary efforts to stay current in our field by attending relevant regional, national and international conferences and reviewing the current literature, textbooks and online databases. Dr. Boyan Hadjiev is fellowship-trained and board-certified in Internal Medicine and Allergy and Immunology. We firmly believe that having a board certification makes the physician more proficient and knowledgeable in the field of allergy/immunology and sinus disease."


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  • Allergy
  • Allergy & Immunology
  • Internal Medicine

Board Certifications

  • Allergy & Immunology
    Accredited by: American Board of Allergy & Immunology*
  • Internal Medicine
    Accredited by: American Board of Internal Medicine*

Conditions Treated

  • Acute Bronchitis
  • Acute Rhinitis
  • Acute Sinusitis
  • Acute Upper Respiratory Infection
  • Adverse Drug Reactions
  • Airborne Allergies
  • Airway Disorders
  • Airway Obstruction
  • Allergic Asthma
  • Allergic Bronchopulmonary Aspergillosis
  • Allergic Conjunctivitis
  • Allergic Disorders
  • Allergic Fungal Sinusitis
  • Allergic Irritability Syndrome
  • Allergic Reaction
  • Allergic Reactions to Food
  • Allergic Reactions to Insect Stings
  • Allergic Reactions to Medications
  • Allergic Rhinitis
  • Allergic Rhinoconjunctivitis
  • Allergic Seminal Vulvovaginitis
  • Allergies
  • Alpha 1-Antitrypsin Deficiency
  • Alzheimer's Disease
  • Anaphylaxis
  • Anemia
  • Angina
  • Angioedema
  • Animal Allergies
  • Anthrax
  • Anxiety
  • Arthritis
  • Asthma
  • Asthma in Adults
  • Asthma in Children
  • Asthma in Pregnancy
  • Asthmatic Bronchitis
  • Atopic Dermatitis (Eczema)
  • Autoimmune Thyroid Diseases
  • Autoimmune Urticaria
  • Bronchitis
  • COPD (Chronic Obstructive Pulmonary Disease)
  • Celiac Disease
  • Chronic Sinusitis
  • Contact Dermatitis
  • Cough
  • Crohn's Disease
  • Dermatitis
  • Dermatitis Due to Food
  • Dermatitis Due to Substances Taken Internally
  • Deviated Septum
  • Diabetes
  • Diabetic Neuropathy
  • Drug Allergy
  • Earwax Buildup
  • Eating Disorders
  • Egg Hypersensitivity
  • Endometriosis
  • Erectile Dysfunction
  • Exercise-Induced Asthma
  • Eye Infections
  • Eyelid Eczema
  • Fatigue
  • Fibromyalgia
  • Genital Herpes
  • Gout
  • Heart Disease
  • Heart Failure
  • Hepatitis
  • Hives
  • Hypertension
  • Itchy Skin
  • Kidney Failure
  • Menopause
  • Metabolic Syndrome
  • Obesity
  • Occupational Asthma
  • Osteoporosis
  • Otitis Media
  • Overactive Bladder
  • Parkinson's Disease
  • Pinkeye (Conjunctivitis)
  • Pollen Allergy
  • Psoriasis
  • Pulmonary Disease
  • Rash
  • Rhinitis
  • Shingles
  • Sinusitis
  • Sleep Disorders
  • Stress
  • Stroke
  • Substance Abuse
  • Toxic Effect of Venom
  • Ulcerative Colitis


Read More


  • Allergy Shots
  • Allergy Skin Testing
  • Allergy Testing
  • Allergy Treatment
  • Patch Testing

Background Check

0 Malpractice Claims

No malpractice history found for New York.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.


  • University of Michigan
    Undergraduate School | Graduated 1996
  • Case Western Reserve University School of Medicine
    Medical School | Graduated 2000
  • Long Island Jewish Healthcare System
    Residency Hospital | Completed 2003
  • Long Island Jewish Healthcare System
    Fellowship Hospital | Completed 2005

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
  • Patients Choice Award, 2009
  • Patients Choice Award, 2007
  • Patients Choice Award, 2008
Media & Publications

Dr. Hadjiev has no media or publications listed.

Languages Spoken

  • English
  • Chinese
  • Russian
  • Spanish

Memberships & Professional Affiliations

  • American Board of Allergy and Immunology, Diplomate
  • American Board of Internal Medicine, Diplomate

Dr. Hadjiev's Reviews

Likelihood of recommending Dr. Hadjiev to family and friends
based on 35 total reviews (29 with comments)
Dr. Hadjiev's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers Questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
  • Average wait time
    10 to 15 minutes
Patient Comments (29)
I have so many things to say. I always show up without an appointment , as an emergency. Even though I don't have one they still see me and treat me with respect. They are always very helpful to me and I'm thankful for their services and for helping me. Thanks Dr. Hadjiev and staff, you guys are great
Dr. Hadjiev Always treats me like Family, always demonstrate interest in my health. The front desk are very friendly and professional. They are always willing to help and accommodates my needs.
He always demonstrate interest in my health. Treats you like a family member. The staffs are great, very professional and friendly.
I known Dr. Hadjiev for more than 7 years. He always be very pleasant and caring.
I had sinus surgery years before that proved to do nothing. The after care was awful and nothing was done. By the time I started seeing Dr. Hadjiev and his amazing staff i was beyond miserable. He never gave up and kept working with me. He suggested a surgeon and I had a second surgery, It was an absolute success! I have never felt better. I'm sleeping and on less medications. He is the best!!!!
I have been a patient for 9 years for allergies. Treatments have really helped my condition. Dr. H. has been very diligent about related issues like bronchial and sinus infections and a few cases of vertigo. He has referred me to other good doctors where necessary. Very engaged with medicine, really thinks about the problems his patients are facing.
Dr. Hadjiev's and all the staff are very nice and comforting. i waited for a bit but my experience was amazing. He takes the time to explain in a way for you not to feel complicated.
My experience with Dr. Hadjiev's practice has been nothing but exemplary. He and his staff always treat you with respect and take your concerns very seriously. They have given me the very best treatment for my allergies. I've been getting my allergy shots from them for years and have been completely satisfied with their care. Thank you to Dr. Hadjiev, Claire, Janet, and the entire practice group.
I only see Dr. H once every 2 years, but every time my experience is wonderful. He knows the case , and treat me like he is my bread, advice me in different options and always give me the best of instructions. Always gratefull for the services of the staff and their flexibility to help me.
Dr. Hadjiev is one of the best allergist/docs that I've been to in a while. Key: not only does he hear what you're saying but he listens. I totally recommend him.
He explains everything is a way and with a passion that is make sit easier for me as patient to understand my illness and health issues.
excellent everything clear helping my alergy this Dr are profesional i love them
Today I had an emergency where I had an allergic reaction. I was able to come in right away and be seen with no problem. The front desk is amazing as well.
I've suffered from seasonal allergies for most of my life. Nothing over the counter seemed to work and my allergies seemed to get worse and worse. This doctors visit was just what I needed and very helpful. I highly recommend this doctors office
I have been a very long time patient and now have my 19yr old son seeing Dr Hadjiev as well. My son and I love sitting and talking to him regarding our medical conditions and family. The office staff is also very friendly and helpful with fitting you into his busy schedule.
I have been coming to Dr. Hagjiev for almost 5 years. My allergies were terrible to the point I needed surgery to remove nasal polyps and clear my nasal passages. Dr. Hadjiev recommended the right treatment and every time I have an issue (sinusitis or asthma) he takes care of it for me. I recommend Dr. Hadjiev and his office. The front desk is wonderful, Claire and Jennifer are always happy to help and are on top of appointments, test results, insurance claims, etc.
Dr. Hadjiev is full of Knowledge. He is very dedicated to his work. As a patient I always feel that my health issues matters.
Everyone is so nice and professional. Especially the front desk, They are always very accommodating.
Dr. Hadjiev's, I'm very grateful for all your help with my skin issues and asthma. Thank you for always helping me.
Dr. Hadjive is a warm and compassionate physician. He's attentive and listens to all of my concerns. I would not hesitate to refer him to any of my friends or relatives.
I have been coming to Dr. Hadjiev for the last 6 years and I have to say that he is absolutely wonderful. I also really enjoy PA Epstein as well ~ they are very thorough and take their time to make sure that I understand what I am doing with my medication. I highly recommend them to anyone.
I have been coming to Dr. Hadjiev for the last 6 years and I have found him and his staff to be very helpful and thorough. Even through both my pregnancies, he was very knowledgeable with what I could take and when and how much. I highly recommend all the staff to help out with your needs.
I have been coming to Dr. Hadjiev for the last 6 years and I have to say that he is absolutely wonderful. I also really enjoy PA Epstein as well ~ they are very thorough and take their time to make sure that I understand what I am doing with my medication. I highly recommend them to anyone.
I always feel I am in good hands and my allergies are in the best hands. I never have any concerns and I like how they listen to any concerns I have or might not agree with certain things.
in New York, NY |
Fabulous caring, compassionate, knowledgeable doctor. Takes the time to explain everything in a calm, comfortable manner. He made me feel confident that my many allergies can be controlled and I will be able to breathe easily once again! I feel happy to have found him and needless to say recommend him highly.
in New York |
I had a great visit and a great follow up
New York, NY |
I suffer from severe inflammation and JRA. I break out in hives when I eat nightshades, especially tomatoes and eggplant. I went to Dr Hadjiev to see what other nightshades I may be allergic to. He did a skin prk test, and I had a horrible reaction to everything; rash, swollen throat, sweating, dizziness. He concluded that I have Zero allergies. Needless to say, I am in the hands of a much more compassionate and qualified doctor to treat my symptoms, and ultimately get to the root of the problem
Dr Hadjiev has been one of the finest doctors I have been to. I have many severe allergy related conditions, and Dr. Hadjiev takes the time to listen and thoughtfully determine the necessary treatments.
It always a refreshing and healing experience with Dr. Hadjiev. I trust no one else with my asthma and sinus conditions.
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Now Accepting New Patients
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Dr. Hadjiev accepts 1 insurance carrier
  • Accepts most major dental plans. Please contact our office for details.

*Please verify this information when scheduling an appointment.

Hospitals where Dr. Hadjiev has admitting privileges

Saint Luke's Roosevelt Hospital
1111 Amsterdam Ave
New York, NY 10025
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