Dr. Lorna Thornton is an experienced primary care internist dedicated to building trusting relationship with patients. From wellness and prevention to complex illness, she enjoys connecting with patients, guiding them to make informed medical decisions and empowering them to reach their health goals. Dr. Thornton received her undergraduate degree at Stanford University, then earned her medical degree and completed her internal medicine residency at the University of California, San Francisco.

Professional Summary

Professional Education
  • Board Certification: American Board of Internal Medicine, Internal Medicine (2002)
  • Residency: UCSF Department of Medicine (2002) CA
  • Medical Education: University of California at San Francisco School of Medicine (1999) CA

Practice Locations

Menlo Medical Clinic in Menlo Park - 1300 Crane Menlo Park, CA
Menlo Park, CA

1300 Crane Street

Menlo Park , CA 94025

(650) 498-6500

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Patient Ratings

(303 Ratings)

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Friendliness/courtesy of the care provider
Explanations the care provider gave you about your problem or condition
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Care provider's efforts to include you in decisions about your care
Care provider's efforts to include you in decisions about your care
Clear Communication
Degree to which care provider talked with you using words you could understand
Time Spent
Your confidence in this care provider
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The Patients Ratings and comments are gathered from our Patient Satisfaction Survey and displayed in their entirety.

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Patient Reviews

(115 reviews)

First time I met Dr. Thornton, and she is very nice and friendly. I like her a lot because of friendliness and so nice to her patients.
The best primary care doctor U have ever had for caring concern expertise and diagnosis and medication and referrals.
Dr. Thornton was excellent in listening & understanding.
Excellent doctor!
Dr. Thornton is great. I feel like she really listens to me and cares about my overall wellbeing, taking the extra few minutes to perform an extra exam or talk through a question or concern.
Dr Thornton is great. she really cares.
Dr. Thornton is an exceptional physician she listens thoroughly, she thinks laterally and considers the overall patient presentation (past and present symptomatology and diagnosis and considers the prognosis).
I really appreciate Dr. Thornton looking at me as an individual (ie not just a category such as and "old lady")
Dr. Thornton is always very caring.
Dr. Thornton is great and just recommended her to my friend Kevin Grady
Dr. Thornton has been a good doctor for me.
I didn't like to go to the doctors but Dr. Thornton changed that! She is a great doctor and listens.
Dr. Thornton is very thorough, attentive, and knowledgable, and I am delighted to have her as my primary care physician.
Dr Thornton was friendly and very thorough.
I love my doctor, she is wonderful!
my husband & I are very pleased to have found Dr. Thornton after our previous doctor, who we liked very much, moved out of the area
Dr. Thornton is an excellent physician.
Dr Thorton is very thorough up to date on my issues and has great follow through
Dr. Thornton never makes me feel rushed and always seems like she cares about any concern I have
Dr. Thornton is exceptionally kind and knowledgeable. She's very thorough and doesn't rush you through the appointment. I recommend her to all my friends.
Listens carefully and providers practical guidance.
Dr. Thornton is warm, well-informed and a joy to work with. I'm glad she's my internist.
Dr. Thornton was wonderful. She listened to my concerns are created a very clear and comprehensive care plan - Highly recommend.
Dr Thornton really cares
Dr. Thornton is great at strategizing best approaches to health concerns and is a kind, knowledgeable and efficient provider.
Dr Thornton and her staff are the best!!!!!
She really listens to me.
She took the time to refer me to a specialist for an issue.
Dr. Thornton was very attentive and I felt well cared for.
I have already recommended my doctor to people I know.
First class doctor.
Excellent doctor.
Dr. Thornton is an experienced, competent physician who is down to earth and has an easy relaxed manner. It's a pleasure to have her as my primary care doctor; she sets a tone that creates a true partnership.
Dr. Thornton is an excellent, attentive, insightful provider.
Lorna is exceptional.
I really appreciate the overall professional demeanor of Dr. Thorton. Most of all I trust her and welcome her attentiveness.
Explained my condition clearly and was straightforward and empathetic. Very good experience. She and her staff encouraged a follow-up ultrasound which they were able to book on the spot.
I am 100% satisfied with Dr. Thornton. I think she is the very best.
Not a fan of going to the doctor and Dr. Thornton makes it easy to discuss overall health and developing a plan.
Dr. Thornton is the best primary care physician I've ever known. She thoroughly explains her reasoning and works through issues logically and systematically, while always maintaining empathy for the impact that health issues can have on quality of life.
Dr. Thornton is an excellent physician.
Dr. Thornton was exceptional. Spent an additional 15 minutes at my scheduled 45 minute appointment (I was last patient of the day so she wasn't keeping someone else waiting). Keen to answer all my questions, look up info on internet, recommended how I should follow up on certain issues. Do not let this doctor leave Menlo Med!
It was such a pleasure to see Dr. Thornton for my yearly checkup. She is kind, caring, patient, and thorough. I feel very lucky to have her as my doctor.
Dr. Thornton is a very knowledgeable caring doctor. She has been accessible when I need to see or talk to her I am fortunate to have her as my primary care doctor.
Dr Thornton was extremely kind and understanding of my concerns. She diagnosed (correctly) that I was only having allergy symptoms, but given my reluctance, she gave me good guidelines for self-isolation, and other symptoms to watch out for. She also agreed to follow up the next day, should my symptoms point to a different direction. I really appreciated her willingness to listen, and explain the possibilities to me.
Dr. Thornton is an excellent doctor.
Lorna is really fantastic
I wanted to give Dr. Thorton a referral of a friend. But, I was disappointed that she is not taking new patients at this time although she advised me to ask again later. I like my new doctor very much and am thankful that I got into her practice when my other doctor retired early.
I never felt rushed. I felt she took the time I needed for all my issues
Dr. Thornton is FANTASTIC. She gives me all her time and does not rush me out the door.
This was first time meeting my new primary care physician, Dr Lorna Thornton. She did my annual wellness physical and talked with me about my general health history. It was a great visit, and I feel very lucky to have her as my PCP.
Dr Thornton is a wonderful, thourough, and caring doctor whom I feel lucky to have for my care. Since I have been so happy with Dr Thornton, my wife has also switched doctors for her care.
I compare the experience to PAMF Palo Alto and Stanford exceeds at least for adults
Dr. Thornton was well prepare for this visit. She had thoroughly read my file.
Dr. Thornton was very friendly to talk with while being very professional. She spent time to get to know me as a patient and addressed all the concerns I had. She was also very thorough in analyzing my test results and followed up w/additional tests as needed.
Dr Thornton was excellent, although it was very difficult to schedule an appointment with, the actual office visit was excellent.
I am very happy to have Dr Thornton as my new primary care doctor.
Excellent 1st meeting - glad I found her!
First visit with Dr. Thornton. I liked her very much and feel I'm in good hands.
dr Thornton is so sweet and approachable. I appreciate the time she took to address my concerns and I didn't feel like she was rushing me out.
Dr. Thornton is personable, has a casual yet professional and unhurried approach.
On this specific visit, I was particularly anxious about the treatment. I verbalized this and she respectfully acknowledged my anxiety and diligently tried to ensure my comfort by performing slowly, talking through everything to manage my expectations, checking in on me, and doing so with kindness and not judgment (e.g. dismissive of my feelings). With past providers, I've had very bad experiences for this specific treatment, and she was a comforting exception that day. I was extremely grateful and it heightened my respect for her as a compassionate professional.
Dr. Thornton was friendly professional and very thorough I liked the fact she did not appear rushed.
Dr Thorton was well worth waiting for but I made my appointment for next year the day I left to insure I would get in when I need to
Dr Thornton was wonderful. it was my first visit with her and she showed a complete grasp of my very complicated medical history. What a great addition to your staff!
Dr. Thornton is by far the best PCP I have ever seen. She is very proactive and empathic and made this an excellent experience. I am glad that I will now be her primary care patient.
Was recommended by others. Recommended to spouse
You should have an "excellent" category, as I would rate my M.D. excellent.
100% excellent
I couldn't be more pleased with my visit with Dr. Thornton...perfect!!
All good. So glad I got Dr. Lorna Thornton for my Primary Care Physician. I already recommended her to a friend, but understand she is not currently taking new patients.
Dr. Thornton is a great doctor. she is friendly, kind, caring and empathetic. based on this appt, I was pleased that to find I can share my thoughts and ideas regarding my health and having a two way conversation about it.
Dr. Thornton is a great doctor! I thought about leaving the clinic because of the lack of courtesy that I experienced from Dr. Fresco. Fortunately, I found Dr. Thornton!
Dr Thornton is an exceptional physician, and person. Her combination of intelligence, wisdom, and kindness are rare.
Dr. Thornton is a very humanitarian person took much interest in knowing everything about my case, & is very kind & explicit.
Exceptionally positive across all accounts
Dr. Thornton was very thorough and knowledgeable. She was able to field my questions regarding vaccinations for international travel with ease.
Dr. Thornton ran tests to efficiently assess my new symptoms and helped me understand them. She was very reassuring.
I really am very happy with Dr Thornton
Dr Thornton is a wonderful physician in whom I have great confidence. My only wish is that she were easier to schedule appointment time with, though I understand her popularity!
Dr. Thornton listens well and addresses my concerns.
I felt validated that I had made an excellent choice when I chose Lorna Thornton as my PCP. I am happy with her as my PCP and anticipated an excellent relationship between me as a patient and her as my doctor.
Dr. Thornton is an good care provider. I need to have my ears washed out and we discussed waiting until I feel better to have water placed in my ears b/c of the cough and cold I had been going through these past 5-6 weeks. At the end of the visit Dr. Thornton just walked out of the room to see another patient, I thought she was coming back and she did not, she was off to the next patient, all b/c of time constraints between patients. She did mention this to me but we really did not say good-bye.
She's always good.
Dr. Thornton is truly excellent - she really showed she cared and take time to really listen.
As I expressed to Dr. Thornton, at the time of my visit, I felt a good amount of relief and deep appreciation to be in her care. I have a great deal of regard for her and her dedication, and ability.
During the physical for my eye surgery, I mentioned that I had hemorrhoids and would like them checked. Dr. Thornton said ok and checked my hemorrhoids and suggested some medication for relief. I feel she is a great doctor, is very personal, through and feel fortunate to be able to have her as my primary doctor.
Dr. Thornton is awesome!
She is amazing.
I already recommended her to my husband!
I love Dr. Thornton. She treats me with respect and never talks down to me, and she seems to really care about my issues.
Dr. Thornton has been great! She has excellent bedside manner.
Great professional experience. Couldn't have been better.
I appreciate the care of Dr. Thornton very much. She accepted me as a patient right away and been helping me right away. I was frightened of what was wrong and Dr. Thornton was very patient.
Dr. Thornton took the time to really understand my complex medical history and to make a thoughtful action plan.
LOVE Dr. Thornton! She never acts condescending. Very knowledgeable, respectful & kind. I forgot to ask 1 question about side effects that she didn't mention.
This was the first time I have met Dr. Thornton. She was very personable and greeted me with a warm and open heart. She listened very thoroughly and I felt she was "present" and "sensitive with me.
Really liked Dr. Thornton. She seems approachable and worked with me for a plan that would fit my lifestyle.
Some of the best communication skills I have seen in a physician. High level of competency.
I loved Dr. Thornton! down to earth, approachable, obviously cares about patients
She was very thorough and caring. Her expainations were clear and she took the time to explain them
Dr. Thorton was great!
She's good. That's why I go to her.
Fantastic across domains of care, explanation, knowledge and compassion.
Dr. Thornton is wonderful. Warm, friendly, experienced and easy to talk to.
Dr. Thornton was very considerate of my situation, asked good investigative questions, and took the action I hoped would occur. She was knowledgeable, caring, and very professional. Her follow-up review of the x-rays was informative and reassuring. I was especially impressed with her desire to have a sports medicine Dr. see me and her assistance in arrangement an appointment with referral Dr. the next day.
she exceeded all expectations
Care provider is very warm, friendly, considerate, and open to listening. She makes you feel relax.
Lorna went out of her way to find Epipen for me, locating a Pharmacist that had one in stock and transferring my prescription there. This was a big relief after CVS told me all their pharmacies had stocked out over the last two months.
Dr. Thornton was exceptionally accommodating in squeezing me into what must have been her lunch hour because I had an urgent need for a special prescription for a conditin that appeared suddenly. She was extrordinarily understanding about my 12 minute tardiness and went out of her way to arrange for the medication to be dispensed as soon as possible. My regular Internist was off that day.
I do not like going to the doctor. I do not feel conventional American medicine is good for preventative medicine. Things like nutrition and exercise are not talked about our encouraged nearly enough. That being said Dr. Thornton was amazing. Although her healing practice may not align with how I want to heal she was accommodating and thoughtful of my beliefs. I truly appreciate her not dismissing my diet (plant based) or use of herbs (tea tree oil for fungus) and not pushing me to use medicines I have had bad experiences with (steroids for eczema). I'm very grateful to have found her as a doctor.
Very good, caring and thorough
I would recommend Dr Thornton if she could see patients without a4-month wait.
Dr. Thornton was great! Very kind and reviewed my chart before the visit.

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