TT
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Trojan, Allergist & Immunologist in Enid, OK?
Dr. Timothy Trojan, MD is an Allergist & Immunologist, who primarily practices in Enid, OK with 1 additional practice location. He is board certified. Dr. Trojan is fluent in English, and is currently seeing new patients. Dr. Trojan’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Trojan’s office.
Is Dr. Trojan board certified as an Allergist & Immunologist?
Yes, Dr. Timothy Trojan, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Trojan speak?
Dr. Trojan and their clinical team can communicate with patients in the following languages:
English
What conditions does an Allergist & Immunologist like Dr. Trojan typically treat?
As an Allergist & Immunologist, Dr. Trojan diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Trojan. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Pet Allergy
- Allergic Rhinitis
- Allergy
- Animal dander allergy
- Cat allergy
- Dog allergy
- Allergic rhinitis from pets
- Nasal allergy
- Chronic allergy symptoms
- Allergic reactions
ICD-10 Codes:
- J3081: Allergic rhinitis due to animal (cat) (dog) hair and dander
- J3089: Other allergic rhinitis
Also known as:
- Hay Fever
- Pollen allergy
- Seasonal allergies
- Allergic rhinitis
ICD-10 Codes:
- J301: Allergic rhinitis due to pollen
Also known as:
- Mild Intermittent Asthma
- Asthma
- Occasional Asthma
- Mild Asthma Attacks
- Infrequent Asthma
ICD-10 Codes:
- J4520: Mild intermittent asthma, uncomplicated
Also known as:
- Chronic Hives
- Hives
- Hives of unknown cause
- Spontaneous urticaria
- Persistent welts
ICD-10 Codes:
- L501: Idiopathic urticaria
Also known as:
- Chronic Cough
- Cough
- Persistent cough
- Long-lasting cough
- Ongoing cough
ICD-10 Codes:
- R053: Chronic cough
Also known as:
- Non-Allergic Rhinitis
- Allergy
- Vasomotor rhinitis
- Chronic runny nose
- Non-allergic nasal inflammation
ICD-10 Codes:
- J300: Vasomotor rhinitis
What procedures does an Allergist & Immunologist like Dr. Trojan typically perform?
As an Allergist & Immunologist, procedures performed by Dr. Timothy Trojan may include:
- Allergy Consultation
- Allergy Follow Up
- Allergy Shots
- Allergy Testing
- Insect Bite(s)
- Sinus Surgeon Consultation
- Sinus Surgeon Follow Up
- Sinus Surgery
Please contact Dr. Trojan's office directly to confirm care for your specific procedure, for more information, or to schedule a consultation.
Does Dr. Trojan accept my insurance?
Dr. Trojan accepts most major insurance plans. Important: Please call our office at before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Trojan accept in Enid, OK?
Dr. Trojan in Enid, OK accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Centene Corporation
CVS Health (formerly Aetna)
Federal government of the United States
Health Care Service Corporation
Humana
Medicare
State of Oklahoma
UnitedHealth Group
Unknown
View All Insurances
Where is Dr. Trojan's office located?
What is Dr. Trojan's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Trojan's National Provider Identifier (NPI) number is 1518125053.
What common questions do patients ask about Dr. Trojan?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Trojan
What is Dr. Timothy Trojan's specialty?
Dr. Trojan is a Allergist & Immunologist near Enid, OK.
What does an Allergist & Immunologist do?
An allergist-immunologist is well-versed in the assessment, physical examination, laboratory diagnosis, and treatment of immune system disorders. These conditions include, but are not limited to, eczema, asthma, anaphylaxis, rhinitis, and adverse reactions to food, medication, and insect stings. Furthermore, they manage immune deficiency diseases, whether acquired or congenital, issues with host defense, and challenges associated with autoimmune diseases, organ transplantation, or immune system malignancies.
Is this Dr. Timothy Trojan affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Trojan is affiliated with Northwestern Memorial Hospital which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
When to see an Allergist & Immunologist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see an Allergist & Immunologist. Explore insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Timothy Trojan accepting new patients in Enid, OK?
Yes, Dr. Timothy Trojan is accepting new patients at this time.
Does Dr. Timothy Trojan offer online booking?
Please contact Dr. Trojan's office for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Timothy Trojan?
Please contact Dr. Trojan's office for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Timothy Trojan have?
Dr. Timothy Trojan is certified by the American Board of Internal Medicine.
Other Allergist & Immunologist Near Enid, OK
ML
Emergency Medicine Specialist
Dr. Mark Lipe, MD is an Emergency Medicine Specialist, who primarily practices in Oklahoma City, OK with 2 additional practice locations. He has been practicing for over 32 years and is board certified.
Oklahoma City, OK
MT
Allergist & Immunologist
Dr. Martha Tarpay, MD is an Allergist & Immunologist, who primarily practices in Oklahoma City, OK. She has been practicing for over 54 years and is board certified.
Oklahoma City, OK

Allergist & Immunologist
Dr. Bret Haymore, MD is an Allergist & Immunologist, who primarily practices in Oklahoma City, OK with 1 additional practice location. He is board certified.
Oklahoma City, OK