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Dr. Ariel Lopez-chavez

Medical Oncology
Sebastopol, CA
20 years experience male

Locations

Office

Sebastopol, CA

Address

1252 W Sexton Rd, Sebastopol, CA, United States
Directions

About

Bio

Dr. Lopez-Chavez has over 10 years o medical experience. He formerly practiced at the National Cancer Institute and the National Naval Medical System where he received the “Top Medical Oncology Provider for Exceptional Customer Service” award, based on patient satisfaction surveys. In addition, Dr. Lopez-Chavez was an Assistant Professor of Medicine at Oregon Health and Science University where he led the Lung Cancer and Thoracic Oncology program. He was also an Associate Professor of medicine at the University of Miami where he was the director of the lung cancer clinic and leader of the lung and thoracic malignancies research program at the Sylvester Cancer Institute. He is currently a Medical Director at Genentech / Roche under the Cancer Immunotherapy Franchise. Dr. Lopez-Chavez has ample experience in the field of lung cancer and other thoracic malignancies and specializes in the use of novel therapies for the treatment of cancer, in particular in the use of immunotherapy and other targeted therapies to combat cancer.

Specialties
Doctors may have more than one area of specialty interest. Board certification in a specialty area means the doctor has completed formal training and has practice experience in that specialty, and has passed the certification examination from the corresponding accredited medical specialty board.

Medical Oncology

Licenses

United States: California, Florida, Oregon

Doctor Q&A

74 Answers
71 Agrees
The number of answers this doctor has agreed with.
A 22-year-old female asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Unlikely: Extremely unlikely that you can develop lung cancer at your age after smoking for only 1 year. There is no need for further testing as long as you don... Read More
A 47-year-old member asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Need physical exam: Swollen lymph nodes are never normal. You really need to be examined by a physician to figure out what is going on. Many times, infections can be the ... Read More
A 24-year-old male asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Urologist: I think that the best option would be to see a urologist. You are very young to have such symptoms and a urologist would be the best person to help yo... Read More
A 32-year-old member asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
It could but...: This disease affects mainly babies in development and it mainly affects the development of their bones. However, the disease is so severe that it ends... Read More
A 48-year-old male asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
No: There is no valid data indicating that arginine is helpful against cancer.
A 38-year-old female asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Not sure but: Stomach upset is very common. However, if it is happening all the time after he eats, it is better to see your primary care physician to make sure eve... Read More
A female asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Small : Small cell lung cancer is not usually treated with surgery because by the time it is found it is too large to get fully resected. For a cancer that is... Read More
A female asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
The : The size of the cancer by itself its not enough to provide information about the prognosis of a patient with lung cancer. This patient needs to be eva... Read More
A 20-year-old female asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Not by itself: Without any other symptoms, yawning a lot is probably a sign that you are tired. Make sure that you are sleeping well and waking up well rested. Other... Read More
A 25-year-old male asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Need to see physicia: Dear Abhishek: the appropriate treatment will depend on what is causing the enlarged glands (they are probably lymph nodes). You definitely need to se... Read More
A 27-year-old female asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
1 to 3 days: It can take 1 to 3 days to get to its worst. This is for some people that have reactions after they have a positive test. If you are referring to a ty... Read More
A 32-year-old female asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
See PCP / podiatrist: Best thing to do is to have your PCP or a podiatrist take a look at the swelling if the swelling has been there for a while. Otherwise, if this appear... Read More
A 21-year-old male asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Good prognosis: It would be unlikely for a stage 2 rcc to cause regurgitation and pulmonary hypertension. Stage 2 (t2n0) has a good prognosis with recent publications... Read More
A 27-year-old female asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Ask for 2nd opinion: It is not very frequent to miss a melanoma, but mistakes happen and if you have doubts about your diagnosis you should ask your physician to send the ... Read More
A 22-year-old female asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Unlikely: If she is only 15 years old it would be very unlikely to have lung cancer at this age. However, this is a great time to stop smoking completely. Other... Read More
A 37-year-old male asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
The: The recommended amount of Exercise for most adults is at least 30 minutes per day for 5 days a week.
A 63-year-old female asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Yes: Yes, it is possible to have cancer with a normal CRP and sed rate. I am a medical oncologist and never order such tests to diagnose or follow any canc... Read More
A 37-year-old male asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Ignore: If you take opioids for cancer pain, make sure you also take stool softeners to avoid constipation.
A 37-year-old male asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Cognitive: Cognitive behavioral therapy has been shown to be the best type of therapy for depression.
A 59-year-old female asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Dr. Ravi Salgia: I personally know dr. Ravi salgia at the university of chicago. He specializes in lung cancers including small cell lung cancer. The university of chi... Read More
A member asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
The : The treatment of lung cancer depends on the type of lung cancer (small cell lung cancer vs non-small cell lung cancer) and the stage of the cancer (i,... Read More
A 38-year-old female asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
The : The treatment and prognosis of any tumor or cancer in the lungs depends on the exact type of tumor and the stage. With the information provided here i... Read More
A 37-year-old male asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Most: Most of the sodium comes from commercial products like canned foods so try to eat more at home.
A 37-year-old male asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Ignore: Try to learn to meditate or mindfulness. It will help you with your mental health.
A 23-year-old female asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Get a physical: The best approach here is to see your doctor for a physical exam and go from there. Not sure what you mean by a swollen lymph node in the right upper ... Read More
A 55-year-old female asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
See your doctor: These symptoms definitely need to be evaluated by a doctor. Many things can cause these symptoms and i really cannot be more specific but please don't... Read More
A 37-year-old male asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Please: Please get into the habit of using sunscreen and avoid tanning. Super important to start when young.
A 18-year-old male asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Symptoms?: Doctors don't typically check for thyroid cancer unless there is a specific suspicion, such as when there is a mass or a lump or other concerning symp... Read More
A 24-year-old male asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
See doctor: Rashes are very hard to diagnose without a physical exam, so i advice that you see your primary care physician to take a look and tell you what it is.
A 37-year-old male asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Do: Do eat more whole foods that do not require elaborate preparation and extra ingredients.
A 23-year-old male asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Stop smoking: First of all, you should take this opportunity to just stop smoking all together. Even 1 cigarette will predispose you to get not only lung cancer but... Read More
A 31-year-old member asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Stage 4 NSCLC: Tarceva (erlotinib) is approved in the united sates for the treatment of patients with stage 4 non-small cell lung cancer after they have failed chemo... Read More
A 36-year-old male asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Ignore: Palliative care has been shown to improve people's quality of life and survival in cancer.
A 27-year-old female asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Physical exam: You need to have a physical exam by a doctor to make sure everything is ok. According to your age, this is probably nothing serious but you should st... Read More
A 47-year-old male asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Physical exam: Throat dryness is a common symptom that can be caused by many different things. The only way to tell you why you are having this is to look at your th... Read More
A 20-year-old male asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Unlikely but: Unlikely to be cancer but have your primary care physician examine you to make sure everything is ok. Your symptoms sound like acid reflux but, once a... Read More
A 40-year-old male asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
They could but...: The symptoms you are describing are very common. They can be associated with colon cancer but there many more causes that are probably more common in ... Read More
A 50-year-old female asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
See doctor ASAP: Having extreme pain after a biopsy that was done 1 1/2 months ago is absolutely not normal. Even if a chest tube was there, the pain should have been ... Read More
A 37-year-old male asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Make: Make sure to sleep at least 7 solid hours every night. This is the minimum recommended for adults.
A 37-year-old male asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
The: The feeling good handbook by David Burns will teach you the principles of feeling good with CBT.
A 28-year-old female asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Unlikely but..: Unlikely to be stomach cancer but you definitely need to be seen by a doctor to figure out what is causing the pain. Maybe acid reflux, an ulcer, or m... Read More
A 37-year-old male asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Make: Make sure to check the labels of all food you buy.
A 41-year-old female asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Need to see doc: You need to go back to your doctor and have her or him take another look. You also need to ask about the results of the previous biopsy. Any lump in t... Read More
A 49-year-old female asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
More info needed: Please provide more information. I am unable to provide an opinion based on this. Best wishes, ariel.
A 35-year-old male asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
See doctor: Having blood in the stools is never normal. You need to be seen by your doctor to help you figure out what's wrong. You will likely need to see a gast... Read More
A 26-year-old male asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
It all depends: It all depends on where the cancer is now , the symptoms of the patient and in how many different places it is. Chemotherapy, radiation and surgery co... Read More
A member asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Very common: It is very common to have little mucus in your throat or dryness. This is a side effect from the radiation and it takes a very long time to get better... Read More
A 57-year-old female asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
More information: Dear patalbre34: Are you referring to a thyroid ultrasound? If so, most likely, the FNA and Thyroseq were not enought to make an accurate diagnosis. ... Read More
A 58-year-old female asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Your PCP is enough: Dear Emmy: Given that you have been NED for 12 years, your follow up would be more appropriately done by a regular primary care physicians. As oncolog... Read More
A 55-year-old female asked:
Dr. Ariel Lopez-chavez
Medical Oncology 20 years experience
Unlikely, however...: A true typical lung carcinoid stage i that was fully taken out by surgery has very low chances of spreading. However, it is still possible for it to s... Read More

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Testimonials
Recommendations and Thank you notes are endorsements given from patients or other doctors.

16
Recommendations
116
Thank you notes
Dr. Mithran Sukumar
Nov 27, 2012
I endorse this doctor.Excellent oncologist
Dr. Shiuh-wen Luoh
Nov 27, 2012
Nov 27, 2012
HealthTap member
I had exam by doc yesterday and he said its vascular,something to do with to much blood flow to the nipples,still a bit worried but am ok x
HealthTap member
Thank you, your answer was very helpful! Docs aren't taking me seriously but I will go to walk in centre. Many
HealthTap member
Thank you, your answer was very helpful! thanku i have quit smoking yesterday...thank u very much

Education & Training

Medical/Graduate school

National Autonomous University of Mexico
Graduated 2005MD

Medical/Graduate school

Autonomous University of Queretaro College of Medicine
Graduated 2002MD

Residency

UPMC Presbyterian

Awards

#1 Medical Oncology Provider for Exceptional Customer Service, National Naval Medical Center
Best Internal Medicine Teacher, University of Pittsburgh
Outstanding Service to Underserved Populations, University of Pittsburgh Medical Center

Affiliations

American Association for Cancer Research
American Society of Clinical Oncology
American Medical Association

Publications

Phase II study of belinostat in patients with recurrent or refractory advanced thymic epithelial tumors.
Impacting tumor cell-fate by targeting the inhibitor of apoptosis protein survivin.
Evaluation of KRAS mutations, angiogenic biomarkers, and DCE-MRI in patients with advanced non-small-cell lung cancer receiving sorafenib.
90,000 U.S. doctors in 147 specialties are here to answer your questions, provide medical advice, write prescriptions, and more.
Answer emailed
in 24 hours or less