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Terrie S. Ahn, MD

Allergy and Immunology

Average rating: 4.9

112 ratings

Star ratings are displayed only for those physicians who participate in UCLA Health’s patient experience survey program and have received a minimum of 30 survey responses.

Santa Monica Allergy & Immunology |

1245 16th Street, Suite 303 Santa Monica, CA 90404 US

310-481-4646

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What insurance is accepted?

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Locations
Medical Services
Insurance
Reviews

Languages

English

Education

Medical Board Certifications

Allergy and Immunology, American Board of Allergy and Immunology, 2021

Pediatrics, American Board of Pediatrics, 2019

Fellowship

Allergy & Immunology, UCLA David Geffen School of Medicine, 2022

Residency

Pediatrics, Oakland University William Beaumont School of Medicine, 2019

Degree

MD, Wayne State University School of Medicine, 2016

Locations

Santa Monica

Santa Monica Allergy & Immunology

Allergy and Immunology| Pediatric Allergy and Immunology

1245 16th Street, Suite 303 Santa Monica, CA 90404 US

Location Details

Hospital Affiliations

Ronald Reagan UCLA Medical Center

757 Westwood Plaza
Los Angeles, CA 90095 US

UCLA Santa Monica Medical Center

1250 16th St.
Santa Monica, CA 90404 US

Medical Services

Allergy & Immunology

Areas of Focus

Allergen immunotherapy

Immune deficiency

Food challenge testing

Food allergy

Eczema

Allergic rhinitis

Insurance

Aetna
Anthem Blue Cross
Blue Shield of California
Centivo
Cigna
First Health
Health Net of California
Interplan (part of HealthSmart)
Medicare Advantage
MultiPlan
UFCM Health System
Prime Health Services
Private Healthcare Systems (PHCS)
TRICARE
UnitedHealthcare

The list of healthcare plans above may not be comprehensive and could change.
Please contact your benefits coordinator or health insurance company directly to verify coverage.

Visit our health insurance information page for more details.

Reviews

Overall rating: 4.9

Star ratings are displayed only for those physicians who participate in UCLA Health’s patient experience survey program and have received a minimum of 30 survey responses.

112 total ratings | 84 reviews

5.0

June 24, 2026

She is very nice and thorough.

5.0

June 24, 2026

She was very patient with my questions, gave good information, and gave good advice.

5.0

June 22, 2026

Knowledgeable and caring

5.0

June 22, 2026

So helpful, kind, and wonderful

5.0

June 16, 2026

Explained my issues well.. Professional

5.0

June 10, 2026

She was thorough, related well to my health concerns, and facilitated the visit very competently. I would go back to her.

5.0

June 9, 2026

Dr. Ahn is one if my favorite doctors ever! Friendly & knowledgeable - very comprehensive & organized.

5.0

June 9, 2026

Dr. Ahn was thorough and helpful. She demonstrated compassion with her questions.

5.0

June 2, 2026

She's so nice and willing to listen to any health related issue I'm dealing with and offer insightful solutions.

5.0

June 1, 2026

Knowledgeable and took the time to listen and explain her rationale/recommendations.

5.0

May 29, 2026

Very professional

5.0

May 16, 2026

Even though I didn’t have the specific language on how to ask for a test, Dr Ahn has a supportive demeanor and encouraged me to describe it in the language I do have, and she understood my request. She was open to testing

5.0

May 15, 2026

Dr. Ahn is very thorough, explains everything clearly and organized, inquires and encourages asking questions.

5.0

May 15, 2026

Dr. Ahn was personable, friendly, thorough. She asked good questions, and definitely listened to what I had to say.

5.0

May 13, 2026

Was a great experience. She is very knowledgeable and friendly.

5.0

May 12, 2026

Thorough,investigative,and thoughtful…she was terrific

5.0

May 5, 2026

Nice, clear & helpful

5.0

May 4, 2026

Kind, professional, supportive, as always

5.0

April 28, 2026

Best

5.0

April 24, 2026

Dr. Ahmed is caring, knowledgeable, and a pleasure to talk with

5.0

April 22, 2026

She was thoughtful and listened to me. I left feeling like she cared.

5.0

April 8, 2026

My provider answered all my questions and was great the way she explained things.

5.0

April 7, 2026

Best

5.0

April 3, 2026

Dr was punctual,listened carefully and was mindful & helpful.

5.0

March 30, 2026

Amazing

5.0

March 26, 2026

Dr Ahn it’s really one of the best doctors I’ve ever seen at Ucla. She is extremely knowledgeable, she explains everything in great detail. She answers all questions and she’s very kind and compassionate. I wish more doctors were like her. She is an exemplary role model.

5.0

March 11, 2026

Excellent patient experience The fellow was so kind and asked very thoughtful questions and listened well without judgement Dr Ahn was also wonderful I feel like I was not rushed and she listened to my concerns and was very thorough

5.0

March 10, 2026

Very caring treatment

5.0

March 9, 2026

I am happy with my Dr

5.0

March 9, 2026

Video appointment. Dr is definitely intelligent personable and ask pertinent questions. She still's confidence Look forward to an in person appointment with her in the near future.

5.0

March 4, 2026

Such a kind, compassionate, considerate, dedicated, smart, excellent professional doctor, who is outstanding

5.0

March 3, 2026

Great service . Very nice people. Very detailed explanation. I don’t get that with other doctors. It’s nice to see people do a thorough job.

5.0

March 3, 2026

This was my first visit with Dr. Ahn - she was terrific.

5.0

February 26, 2026

Dr Ahn say and discussed my issues at length…very motivated to help me. So kind & personable.

5.0

February 26, 2026

She’s lovely, pleasant, intelligent. Took time to listen to full scope of what issues I have. Made plan of next steps. Dr K was also great!

5.0

February 25, 2026

Courteous welcome, physician and nurse. Very considerate and obviously dedicated to patient. Highly competent nurse and exceptionally good physician.

5.0

February 20, 2026

The best support and healing

5.0

February 19, 2026

Organized, friendly focused, had worked up my file, intelligent questions, no time wasted. Great “bedside” manners.

5.0

February 13, 2026

She is a good listener to all my problems about Allergy

5.0

February 11, 2026

Very knowledgeable and helpful.

4.0

February 10, 2026

The doctor was very kind and I did not feel rushed.

5.0

February 10, 2026

Very thorough- asked many questions about my history- very knowledgeable- I feel my care at this visit was excellent.

5.0

January 28, 2026

I don’t have any complaints. Everyone was very professional and helpful today at my office visit

5.0

January 27, 2026

Listen to all my concerns. Trying to find solutions.

5.0

January 7, 2026

Top of the top! Terrie Ahn is what doctors should aspire to be: ingratiating, knowledgeable, efficient, caring, and empathetic. I have seldom been impressed so much upon first meeting any person. Few of us have her skills, but we all can learn from her.

5.0

January 5, 2026

Very helpful

5.0

January 5, 2026

Dr Ahn is always friendly and goes over my past appointment/history to get us up to date. She answers all my medical questions and addresses my specific concerns. She gives me the information I need to engage in shared decision making.

4.0

December 26, 2025

She was very thorough asking questions to get a better idea of my health history and events that could trigger my condition besides what was on my charts. She was thoughtful and respectful. She filled the video call with an email as what I need to do, what medications I may take to get ready for additional testing. She had a good bedside manner.

5.0

December 19, 2025

Excellent clinician, good at explaining things, exceptional interpersonal skills.

5.0

December 19, 2025

Injections nurse and Dr. Ahn great providers. Dr. Ahn is very thorough. And a nice person.

5.0

December 17, 2025

Dr Ahn was lovely, extremely through and a great explainer. She showed me to labs and discussed how she put this altogether. She was kind and efficient and did a great interview. I am grateful to have her as part of my medical team!

5.0

December 11, 2025

Knowing, caring, thoughtful.

5.0

November 25, 2025

The best and most complete and excellent

5.0

November 22, 2025

Dr Ahn was attentive and informative

5.0

November 10, 2025

Knowledgeable, caring, thoughtful. Recognizes positive trends and patient to see how things develop.

5.0

November 9, 2025

Dr. Ann was so kind and patient. She spent quality time asking me questions …she provided me with a plan moving forward, follow-up visit and excellent detailed aftercare instructions. .

5.0

November 7, 2025

Dr. Ahn is excellent. I felt she really knows her field, got straight to the point meeting the needs of my special case, without my asking, or needing to point it out. 1. She proved I am not allergic to pennicillin, which makes a huge clinical difference- provided special warnings 2. Provided 2 antihistamine Rx’s 1 Eyes. 1 nose- greatly appreciated as eye drops ordered previously, proved not effective against sudden weeping eye allergies. 3. Very good teaching about food allergies- none. Narrowed enviornmental,

5.0

November 4, 2025

My doctor explained to me I understood my health I came out learning something new about my health

5.0

November 3, 2025

Dr. Ahn is compassionate, informed and has helped me to get relief. I am very thankful.

5.0

October 31, 2025

Explained concepts exceptionally well.

5.0

October 24, 2025

I came in for a skin test and Dr. Ahn and team were on time and professional throughout. I appreciate Dr. Ahn explaining any findings in simple terms that are easy to digest and her approach to understanding what steps could be taken for care going forward.

5.0

October 23, 2025

Dr Ahn is personable, thorough and informative.

5.0

October 22, 2025

Dr. Ahn is so smart and thorough. She impresses me every visit.

5.0

October 21, 2025

Dr. Ahn took the time to listen to all my concerns and addressed them thoroughly. She spoke in terms that I could understand and allowed me to be involved in decisions about my care.

5.0

October 21, 2025

The doctor was prompt asked The appropriate questions gave appropriate responses, and I was very pleased with our conversation.

5.0

October 14, 2025

She was thorough, and explained everything well.

5.0

October 10, 2025

She get into detail with me. I like that.

5.0

October 10, 2025

Dr Ahn is extraordinarily thorough and knowledgeable and thoughtful.

5.0

October 7, 2025

Dr. Ann really cares about her patients. I truly believe she is helping me tremendously with my allergies!!!

5.0

October 7, 2025

She was very attentive and thorough and provided a good action plan.

5.0

October 3, 2025

Lovely personality, caring, good explanations, clearly prepared. Could not be happier.

5.0

September 29, 2025

Dr. Ahn was very thorough as she is taking over my care from my previous Immunologist. I look forward to working with her. She seems very competent and highly trained.

5.0

September 27, 2025

I had one video appointment with this doctor before and last visit was in person at the office I had allergy testing then the doctor came in to explain the results to me. She was very attentive and approachable. It was a good experience.

5.0

September 26, 2025

she was great at explaining things very helpful very knowledgeable. I felt very

5.0

September 23, 2025

I love Dr Ahn, I feel like she cares, is knowledgeable and never makes me feel rushed. She is a wonderful person.

5.0

September 23, 2025

Dr. Ahn was very understanding and patient focused. She genuinely cares about the well being of her patients.

5.0

September 22, 2025

Very knowledgeable and helpful

5.0

September 20, 2025

Fabulous comprehensive care by meticulous DrAhn

5.0

August 20, 2025

Extremely clear, patient, thoughtful and helpful

5.0

August 18, 2025

Dr listened well and had thoughtful responses to my questions and concerns.

5.0

August 13, 2025

Knowledgeable and caring

4.0

August 12, 2025

Very chatty. Important info hard to find among all the chat.

5.0

August 6, 2025

Dr. Ahn is wonderful! She is so knowledgeable and does a great job of explaining things. UCLA is very very very lucky to have her!

5.0

August 4, 2025

Everything was clear and efficient.