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Diana Cizmadija, NP

Internal Medicine

Average rating: 4.8

| 198 ratings | 127 reviews

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.

Thousand Oaks Hampshire Primary & Specialty Care |

248 Hampshire Road, Suite 100, Thousand Oaks, CA 91361 US

805-370-0040

+1 more location

What insurance is accepted?

Locations

Insurance

Reviews

Languages

English

Education

Degree

DNP, Medical University of South Carolina- College of Nursing, 2013

Locations

Conejo Valley

Thousand Oaks Hampshire Primary & Specialty Care

Family Medicine| Pulmonology| Internal Medicine +1 more specialty

248 Hampshire Road, Suite 100
Thousand Oaks, CA 91361 US

805-370-0040

Fax:805-370-0041

Location Details

Conejo Valley

Thousand Oaks Primary & Specialty Care

Internal Medicine| Family Medicine| Cardiology +6 more specialties

100 Moody Court, Suite 200
Thousand Oaks, CA 91360 US

805-418-3500

Fax:805-418-3505

Location Details

Areas of Focus

Primary care

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 health care 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:

4.8

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.

198 total ratings | 127 reviews

5.0

October 30, 2025

She was very personable, informative about the process and showing real care.

5.0

October 30, 2025

She was wonderful! Asked important questions and was very kind & personable

5.0

October 30, 2025

Diana was on time which is rare these days. It was a pleasure meeting with her. She was professional, addressed all my issues and was extremely pleasant. I would not hesitate to schedule future visits with Diana and highly recommend her!

5.0

October 24, 2025

Very thorough, most helpful

5.0

October 23, 2025

Services were quick and thorough.

5.0

October 23, 2025

She is absolutely amazing kind , smart , thank u so much

5.0

October 16, 2025

The visit was great. Everyone was very helpful and Diane was also very helpful and wanted to be sure everything was taken care of before my procedure.

5.0

October 12, 2025

Diana was very thorough and caring. I was anxious about my health situation and she spent time with me talking it through and advising me to follow up with a specialist.

5.0

October 10, 2025

Very personable

5.0

October 10, 2025

She listened , was caring very professional and very knowledgeable

5.0

October 9, 2025

She is very kind , welcoming and helpful

5.0

October 9, 2025

She is the best. Kind, caring, thorough and very informative.

5.0

October 9, 2025

Diana is awesome and very through and explains everything in a simple manner

5.0

October 9, 2025

My Nurse Practitioner was so welcoming and friendly, explaining everything in great detail and going over options. She was as so friendly and encouraging. A great experience.

5.0

October 8, 2025

The doctor was very friendly and thorough and answered all questions.

5.0

October 8, 2025

Wonderful, very nice and polite. Treated me with respect and kindness.

5.0

October 8, 2025

Diana was very good

5.0

October 8, 2025

She went the extra mile and beyond to diagnose my illness. I have meet many UCLA doctors but I consider her one of the best and most compassionate. I was lucky to see her.

5.0

October 8, 2025

Nice

5.0

October 7, 2025

She was attentive, helped problem solve, performed thorough exam and shared good information … much better then most of the mds I have seen in clinic.

5.0

October 7, 2025

She was very pleasant and friendly. She explained the purpose of the visit to clear me for my procedure.and asked appropriate questions and completed the exam.

5.0

October 3, 2025

Ms. Cizmadija was pleasant and thorough.

5.0

October 2, 2025

She listened carefully about my symptons, examined me and explained what she was going to do. I was satisfied.

5.0

September 30, 2025

My appointment was right on time. Dr Cizmadija was great. This appointment was a pre-op appointment and the doctor made sure that she covered all the details needed.

5.0

September 25, 2025

Good apprecated

5.0

September 24, 2025

She was wonderful! Explained my test results, answered questions and seemed to care.

5.0

September 18, 2025

Diana is truly one of the most extraordinary nurse practitioners I?ve ever had the privilege of meeting. From the moment you walk into the room, or in today?s case and Virtual visit , her warmth and compassion immediately put you at ease. She listens deeply, with genuine empathy, and makes you feel completely seen and understood. She not only provides exceptional clinical care, but she also carries wisdom, patience, and a gift for explaining things in a way that is both clear and reassuring. What sets Diana apart is her combination of medical expertise and her remarkable ability to connect on a human level. She treats her patients with the utmost kindness, respect, and care, and it?s obvious she is passionate about what she does. She truly embodies what it means to be a healer. UCLA is lucky to have her, and I feel so grateful for the opportunity to have been under her care. Diana is everything you would hope for in a provider, knowledgeable, empathetic, attentive, and genuinely invested in her patients? well-being.

5.0

September 18, 2025

Went in last night for a pre-op exam. It went very smooth. Hardly anybwait time. The staff was terrific.

5.0

September 18, 2025

Very kind, and very clear in her explanations.

5.0

September 11, 2025

Diana listened to my history and gave me a clear diagnostic opinion

5.0

September 9, 2025

I felt Diana Cizmadija NP did a thorough job. On time, got all preop done at same facility.

5.0

September 4, 2025

My doctor was on vacation so had a PA. She was very good and listened to my concerns.

5.0

September 4, 2025

Everything went smoothly. I was taken in the back promptly and had all the tests done that I needed.

5.0

September 3, 2025

The NP did a thorough exam. She asked questions and clarified them when necessary. She provided information when I had options that I did not know about. She was respectful, and although I don’t have a medical education that seemed to me that she was quite knowledgeable in her field.

5.0

September 3, 2025

Listened to me. Provided education and requested referral.

5.0

September 3, 2025

Very efficient and professional.

5.0

August 28, 2025

Diana was thorough and very helpful

5.0

August 23, 2025

Was incredibly wonderful

5.0

August 22, 2025

Diana was great

5.0

August 22, 2025

I did not have to wait long considering I came in without an appointment. Doctor was professional and explained everything to me. I had no trouble getting the medication at my pharmacy.

5.0

August 22, 2025

The Doctor was so great! So warm, professional and thorough! And funny too!!

5.0

August 21, 2025

Efficient knowledgeable and listened to all my questions and gave detailed answers

5.0

August 15, 2025

The doctor was very thorough and attentive to all of my questions about my health.

5.0

August 15, 2025

Good

5.0

August 13, 2025

As good as ever - love her patient communications and working hard to get my ears cleared.

5.0

August 12, 2025

Diane was very attentive and explained my concerns

5.0

August 8, 2025

Diana is in the top five doctors I've ever seen in my life. She is so caring and is just a great person. As a doctor, She really listens to your concerns and does her best to address them. Her follow-up is also above and beyond. At UCLA I have never had such great follow-up and care in the last 5 years. She stands out as exceptional.

5.0

August 7, 2025

We love this dr

5.0

August 7, 2025

Amazing ?Nurse Practitioner?, Diana Cizbadija, provided me with a ?Primary Care? Pre Op Exam for my upcoming hip replacement. I remembered her excellent medical work from a few years ago at UCLA Immediate Care, Thousand Oaks, when she stitched up my right leg that had accidentally been badly gashed, requiring ten?s and ten?s of stitches. She did a beautiful job then, as she did today with the Pre Op!

5.0

August 6, 2025

She is always clear and caring

5.0

August 5, 2025

Knowledgeable personal and caring

5.0

August 5, 2025

Only waited a few minutes & everyone was very professional & courteous.

5.0

August 1, 2025

She was thorough, helpful and gave me good info.

5.0

July 31, 2025

She is a NP and I’ve worked with her before. She is excellent.

5.0

July 31, 2025

Excellent visit! Great doctor Very professional Very timely Very friendly

5.0

July 31, 2025

Excellent

5.0

July 31, 2025

Kind, listened, took the time to understand my symptoms and address concerns. Never seemed rushed.

5.0

July 31, 2025

Great experience MD was great in explaining my concerns.

5.0

July 29, 2025

Very friendly and efficient

5.0

July 29, 2025

She was thorough, kind and did all that was necessary to get me ready for my surgery I appreciate her efforts!

5.0

July 20, 2025

Diana was very kind and personal. She was thorough and paid attention to detail. It was an excellent visit.

5.0

July 18, 2025

Diana and the staff were incredible - friendly and professional. They made the experience painless and their kindness put me at ease.

5.0

July 17, 2025

Wonderful people, very professional, awesome!.

5.0

July 15, 2025

Can I give Diana 100 stars? She was the best doctor ever at UCLA. She listened and never made me feel rushed and asked thoughtful questions and always explained her though process.

5.0

July 15, 2025

Start with make appointment, the person who answers my call, she was very helpful and just what I needed. The person who able to see me is Diana Cizmadija NP, she was do excellent job to explain me what is this check out for my eye surgery.

5.0

July 12, 2025

I saw the nurse practitioner. She asked all the right questions and gave me the medication I needed in order to help alleviate the pain in my lower back. She also thoroughly explained what the next steps would be. Should my condition not improve.

5.0

July 11, 2025

Diana is the best nurse practitioner. She?s smart, knowledgeable and truly cares

5.0

July 10, 2025

First of all it was not a doctor, but a very experienced, understanding, and qualified that I saw today. It was a great experience on all fronts from check in to finish. Very comfortable and at ease.

5.0

July 10, 2025

Very professional!

5.0

July 8, 2025

Excellent visit, very informative, nurse practitioner, Diana

5.0

July 5, 2025

Very good

5.0

July 4, 2025

She was very cheerful and knowledgeable.

5.0

June 28, 2025

Efficent. Straight forward. Effective.

5.0

June 24, 2025

She listened and offered real input to help improve my overall health

5.0

June 18, 2025

PA was very personable, thorough and knowledgeable.

5.0

May 15, 2025

Nurse practitioner was great dry helpful and engaged

5.0

May 15, 2025

I couldn't get an appointment until July with my doctor so I saw her PA. I felt comfortable and she ordered some blood tests.

5.0

May 13, 2025

Appreciate the personable and professional approach

5.0

May 10, 2025

Everyone was so helpful and efficient and I was in and out quickly

5.0

May 9, 2025

Wonderful! She listened, understood me, and gave me recommendations. I felt so much better afterwards!

5.0

May 8, 2025

Answered all my questions. Was professional.

5.0

May 8, 2025

I saw the nurse practitioner She was friendly and treated me with respect listening and responding to my questions

5.0

May 8, 2025

Very nice and explained a lot about my upcoming surgery next week.

5.0

May 6, 2025

Thorough and answered all my questions

5.0

May 6, 2025

Diane the Nurse Practitioner was very thorough and friendly!

5.0

April 30, 2025

Diana C was very helpful and gave me a referral.

5.0

April 25, 2025

Down to earth, knew her stuff, looked at other things on my chart. Very thorough!

5.0

April 25, 2025

She was nice, good communication and good explanation

5.0

April 25, 2025

I loved her! Very kind!!!

5.0

April 24, 2025

Diana, NP was very helpful, good listener, helped what I needed help with and great sense of humor. We need to laugh at our doctors office

5.0

April 24, 2025

Great NP!!!

5.0

April 24, 2025

Met with NP for pre-op. She was competent and pleasant

3.0

April 18, 2025

I was concerned about my BP and the changes in how I was feeling when I exerted myself while exercising. I felt like we were talking over each other instead of really listening and then responding. I also felt like there was a time limit for the visit, not sure if that is accurate or not but that was how I felt.

5.0

April 17, 2025

I saw an NP today. She was very friendly and easy to talk to. Her exam was thorough and she answered all of my concerns.

5.0

April 15, 2025

NP Diana was very good. Friendly, explained things and took time.

5.0

April 8, 2025

It went well

1.0

April 2, 2025

Not prepared scatter

5.0

April 2, 2025

They are a nurse practitioner. Easy professional, informative

5.0

March 20, 2025

Great service and on time.

5.0

March 20, 2025

I met with a nurse practitioner but she was very helpful and it was a positive experience.

5.0

March 11, 2025

Very engaged and concerned about my well being. Took her time to fully understand and diagnose my symptoms. Would love to hire her as my primary.

5.0

March 6, 2025

Friendly and professional

5.0

March 6, 2025

She was very friendly, kind and knowledgeable

5.0

February 26, 2025

Excellent visit as usual

5.0

February 19, 2025

I was very appreciative of how quickly everyone responded to my need.

5.0

February 13, 2025

Diana was amazing and told me everything I needed to know about the preop appointment. She was easy to talk with and explained what the preop incudes.

5.0

February 8, 2025

Great helpful Professional Medical Practitioner.

5.0

February 4, 2025

Diana was patient, listened and took care of business!

5.0

January 30, 2025

NP Diana was very thorough, professional, personable

5.0

January 30, 2025

Great experience... doctor was thorough and confident allowing me to feel comfortable. I appreciate her questions and ready to address any concerns.

5.0

January 28, 2025

She was attentive and kind . I felt well taken care of !!!

5.0

January 26, 2025

Everyone I interacted with was pleasant, friendly, and efficient.

5.0

January 25, 2025

Very thorough and took her time- we were very grateful!

5.0

January 25, 2025

Very compassionate and kind

5.0

January 23, 2025

I had a pre-op appt today with the NP Diana Cizmadija and she was wonderful. Great knowledge, thorough exam and uplifting personality.

5.0

January 23, 2025

Excellent

5.0

January 21, 2025

The physician’s assistant was wonderful! Personable and professional

5.0

January 15, 2025

The Dr was very personable and thorough. She took time to answer all of my questions. And made sure I was updated on all my vaccines.

5.0

January 15, 2025

NP Diana was wonderful. She is professional who has a terrific personality. She asked clear questions and answered my questions with concise answers.

5.0

December 23, 2024

Everyone was so nice and helpful

5.0

December 20, 2024

My appointment with Diana Cizmadija, NP was first class. She asked very appropriate questions, made me feel very comfortable, and listened to my questions and concerns. I wish all interactions with HCPs could be this pleasant. She did a thorough examination and reviewed the preop instructions with me. She made a real connection in the time we had together.

5.0

December 19, 2024

Great doctor, knowledgeable and helpful

5.0

December 17, 2024

She is a PA and thorough with attention to detail.

5.0

December 7, 2024

Diana helped me very much on how to lower my A1c.

5.0

December 5, 2024

I had Diana Cizmadija & she was awesome! Very kind, good bed side manner. Listening to my concerns & was gentle. I really appreciated it! I will definitely look for her again when needing a visit.

5.0

December 4, 2024

she was very thorough listening to my lungs was friendly , direct, listened to me and gave me her input and explain to me what the medication's would do and how they would help.

5.0

December 4, 2024

Thorough, personable and warm.

Diana Cizmadija, NP

Languages

Education

Degree

Locations

Thousand Oaks Hampshire Primary & Specialty Care

Thousand Oaks Primary & Specialty Care

Areas of Focus

Insurance

Reviews

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Find Care

Patient Resources

Patient Resources

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