Ronald J. Ruby, MD
Redondo Beach, CA 90277
Providence Medical Institute - Redondo Beach Internal Medicine & Endocrinology
520 North Prospect Avenue, Suite 200, Redondo Beach, CA 90277
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About Ronald J. Ruby
At Baltimore City Hospitals, Dr. Ruby performed his internship and residency. He became the Chief Medical Resident and a fellow at Johns Hopkins Hospitals. His fellowship training in endocrinology was at Harbor UCLA where he was the Chief Resident. Fellowship interest were in diabetes, obesity, and thyroid disease.
He is a charter member and fellow of the American Association of Clinical Endocrinologists and a member of the National Lipid Association, American Diabetes Association and the Endocrine Society. He has been in the South Bay since 1980 practicing Internal Medicine and Endocrinology. Dr. Ruby has served as the medical director on the board of directors for the South Bay Independent Medical Group. He was the chief of staff at South Bay Hospital. Currently serving as director of the medical education at Providence Little Company of Mary. His current clinical research involves early diagnosis and treatment of pre-diabetics and recognition of premature vascular disease.
Dr. Ruby is a published author and serves as a national speaker for osteoporosis. He is a lifelong sports enthusiast, plays paddle tennis and has a great interest in photography. His wife, two sons and two grandchildren remain the primary focus of his busy and productive lifestyle. His last publication was in the international journal The Lancet-Diabetes & Endocrinology in October 2018 called STOP DIABETES.
Harbor UCLA Medical Center
residencyJohn Hopkins Bayview Medical Center
internshipJohn Hopkins Bayview Medical Center
Medical School
University of Texas
1973
- American Board of Internal Medicine, Internal Medicine
- American Board of Internal Medicine, Endocrinology Diabetes and Metabolism
- American Board of Internal Medicine, Endocrinology and Metabolism
520 North Prospect Avenue, Suite 200
Redondo Beach, CA 90277
Providence Axminster Medical Group
Providence Little Company of Mary Medical Center Torrance
Community Reviews
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As part of ensuring you have a positive experience with Providence, our online provider directory includes ratings and patient comments for select providers. More about our survey.
Dr. Ruby is my favorite doctor. And I have a few.
Providence Patient
Excellent Doctor!
Providence Patient
Dr. Ruby is so knowledgeable about my liver cancer & the treatment ,liver transplant & the meds that will work best for me.
Providence Patient
Good experience. Thank you.
Providence Patient
Excelent
Providence Patient
Dr. Ruby and his entire team are TEN STAR
Providence Patient
Dr Ruby has and is treating me with great success.
Providence Patient
All good
Providence Patient
Results from my blood work show that the medication that Dr. Ruby prescribes is doing wonders for my osteoporosis. Definitely makes me feel great!!
Providence Patient
Very grateful of the medical care from Dr Ruby
Providence Patient
Excellent.
Providence Patient
Dr. Ruby is excellent.
Providence Patient
Very happy with service.
Providence Patient
I just said Dr Ruby is the best
Providence Patient
I enjoy seeing Dr Ruby. He is very helpful in my long term care. He always is very interested in how I am doing and answering my questions.
Providence Patient
Very happy with Dr. Ruby and staff services!
Providence Patient
Dr Ruby is a superb kind and smart doctor
Providence Patient
Overall, good experiences with this provider.
Providence Patient
Great docDown to earth. Very pleasant experience
Providence Patient
Dr Ruby has always given me excellent advise. My health has been better than ever.
Providence Patient
He is the Best and so is his Staff! His care and concern is awesome! I so trust him!!!
Providence Patient
Really appreciate Dr Ruby and his staff
Providence Patient
I truly appreciate the care given by the provider, and how he explains things in an easy way to understand.
Providence Patient
Dr Ruby is an exceptional and empathic doctor. I value his advice and his willingness to dive into a problem I may have even it is with another doctor.He does not hesitate calling your other doctors to clarify the problem so he can help with a solution. I value this doctor 100%.
Providence Patient
Very professional and thorough office visit. They really care.
Providence Patient
All good
Providence Patient
Dr Ruby is an excellent doctor.
Providence Patient
Dr Ruby always takes the time to answer my questions and concerns
Providence Patient
Dr Ruby & staff are theCOGNOSCENTI'S for all things health related!
Providence Patient
Excellent!!!!!!!!!!!
Providence Patient
Dr Ruby & his staff are the best!
Providence Patient
Dr Ruby is a kind and caring doctor. He's very thorough and takes the time to listen to his patients and help them with their issues. If I could give him more than a 10 I would give him 100. Overall though I am very grateful for Providence and their care team that has been provided for me. Thank you all for what you do.
Providence Patient
Dr. Ruby is a very caring doctor, He took a lot of time to explain everything to me,
Providence Patient
Everyone was great
Providence Patient
Dr. Ruby is excellent, very knowledgeable and kind hearted.
Providence Patient
Dr Ruby has been my endocrinologist for 20+ yrs I trust him completely when it comes to my health.
Providence Patient
Everything was professional and efficient.
Providence Patient
So far all is good. No issues.
Providence Patient
Always a good experience
Providence Patient
Dr. Ruby has been my endocrinologist for sometime now. I'll continue to be his patient for a long time. He's a good doctor.
Providence Patient
Always a pleasure seeing Dr. Ruby
Providence Patient
Dr. Ruby is an excellent doctor. He's friendly, very smart and knows how to listen. I always enjoy my office visits with him.
Providence Patient
Dr Ruby always spends time with me during visit answering all my health concerns
Providence Patient
Dr Rudy is a good doctor with knowledge and experience that I look forward to him taking care of my health issues.One of the BEST doctors I have ever had. Not looking forward to the day he goes into retirement. It will be a very SAD day for all of his patients.
Providence Patient
My long time great Doc
Providence Patient
As far as I am convinced if it wasn't for Dr. Ruby and his advise I would not be alive today. He has been instrumental in my medical care being successful.
Providence Patient
Provider is highly respected in his field and it shows during my semi annual visits.
Providence Patient
Good doctor. Provides useful information about my supplements medication
Providence Patient
I am very happy with my doctor and the staff thank you
Providence Patient
Dr. Ruby is great very personal and caring
Providence Patient
All Good
Providence Patient
I have been seeing DR. Ruby for almost 20 years. He in my opinion is second to NONE and hope he keeps practicing for at least another 20 years.....
Providence Patient
Dr. Ruby is extremely knowledgeable about diabetes for which I value him as my specialist and feel very comfortable relying on his guidance.
Providence Patient
Good doctor and appointment schedule
Providence Patient
Excellent care always and very considerate of his patients.
Providence Patient
This was the first time to see this doctor, he explained my problem completely. And set appointments to take care of me. On a personal basis, I liked him!!
Providence Patient
I really Love the attention all the team take with the patients and the Dr Ruby explains me everything I didn't know about it Thank you
Providence Patient
I've been going to Dr. Ruby for over 15 years so I THINK FOR
Providence Patient
Wonderful, knowledgable, caring doctor.
Providence Patient
Everyone is professional and efficient
Providence Patient
Great bedside manner. Very professional
Providence Patient
Dr. Ruby is a very caring doctor. He listens and answers in a way you can understand.
Providence Patient
So far, I have two good doctor visits and this is the best one. Everyone make me feel at home with the best medical advice.
Providence Patient
Dr. Ruby rocks. Questions: He explains in great detail on any questions that I ask. This time I asked getting off a particular medication and agreed, but for safety sake, set up some additional evaluations to verify if the decision was correct. Dr. Ruby is by far, the best doctor I have dealt with at Providence.
Providence Patient
Dr.Ruby is a kind, knowledgable, patient doctor that takes time to listen. I highly recommend him!!
Providence Patient
Dr. Ruby and his staff are outstanding!
Providence Patient
Dr. Ruby is very knowledgeable both in general and about my medical history. He provides good advice and options for care. He is always very courteous.
Providence Patient
Dr. Ruby is a good listener and took the time to provide detailed recommendations about my treatment plan. Dr. Ruby offered alternatives and makes them understandable. Dr. Ruby has a terrific bedside manner.
Providence Patient
No bad experiences. Good response and care.
Providence Patient
All was fine
Providence Patient
I've been a patient of Dr. Ruby for over 40 years, following him as he has moved to different locations.Always attentive and compassionate and informative .I trust him totally and would only change Doctors if he retired. I'm so happy someone told me about him so very long ago.
Providence Patient
Dr. Ruby us a wonderful Dr.Do not let him retire!
Providence Patient
Long time patient of Dr. Ruby, always a great experience when seeing him. He is very personable, thorough and knowledgeable. Can't imagine having a better PCP.
Providence Patient
Dr Ruby is the best ever and I appreciate him and attention to detail and thankful for his help.
Providence Patient
Dr Ruby Is very knowledgable, patient and thorough
Providence Patient
Great doctor and staff
Providence Patient
Always on time. Answers all my questions. Makes sure I understand everything. Always listens to me.
Providence Patient
I have been seeing Dr. Ruby for over thirty years. I trust him with my life.
Providence Patient
Compassionate and professional
Providence Patient
Great support!
Providence Patient
Very satisfied with the visit. All questions answered. Dr.Ruby explained the effects of medications I am taking. Very knowledgeable and up to date.
Providence Patient
EXCELENT MEDICAL PROVIDER
Providence Patient
My best Doctor and his staff!!!
Providence Patient
I feel fortunate to have Dr. Ruby as my endocrinologist to help me deal with my osteoporosis. I owe my continual positive results and improvements to Dr. Ruby. He has and always provides me with the best of care.
Providence Patient
Thanks you for facilitating my hernia surgery pre-op tests .. Much appreciated.
Providence Patient
I like doctor Ruby as my care taker
Providence Patient
Dr Ruby is the best. Caring, listens, puts me at ease
Providence Patient
Always a good experience with Dr. Ruby. Have been his patient for decades. Front desk staff and technicians are top notch.
Providence Patient
Dr Ruby is a fabulous doctor and his staff are knowledgeable and courteous
Providence Patient
Always knowledgeable and helpful. My health has been much better since I've been seeing Dr. Ruby
Providence Patient
I am very happy with my medical care thank you
Providence Patient
Dr Ruby has always be great explaining everything and very understanding
Providence Patient
Always very professional.
Providence Patient
Great experience with office and provider
Providence Patient
All good
Providence Patient
I've been seeing Drt Ron Ruby for about the last forty years by choice and I do not want to see him retire.
Providence Patient
Excellent
Providence Patient
Dr. Ruby was informative and so helpful in discussing my recent bone density test and spinal fracture puzzles. I'm so glad that we are doing more tests to determine whether I have a bone density challenge rather than just assuming I do and going to straight to medications. I look forward to working with him to determine the best path.
Providence Patient
My questions and concerns were answered respectfully and thoroughly. I would highly recommend Dr. Ruby and staff.
Providence Patient
Dr Ruby is personal and very caring and honest about your condition,
Providence Patient
Always great. Answers any/all questions . No issues.
Providence Patient
Dr Ruby has been my Primary Care Physician since 1993he and his staff have provided, and continue to provide, the best service possible for all things related to my medical health care needs!Five Star ratings all around!
Providence Patient
Dr Ruby is very personable, caring and willing to go the extra mile in patient care. Great doctor!
Providence Patient
Dr Ruby and his office is amazing!!!
Providence Patient
Dr Ruby goes the extra mile to really explain what other doctors just gloss over. He is empathic and really helpful. I wouldn't trade him for anyone else.
Providence Patient
Excellent
Providence Patient
Totally wonderful!
Providence Patient
I thought Dr Ruby was very kind. He took the time to review my medical records with me and was informative about my health concern and giving different options for treatment.
Providence Patient
Dr. Ruby was great to give me an immediate virtual visit when I needed him the most!
Providence Patient
Dr Ruby has been my endocrinologist for over 20 yrs. I appreciate his professionalism and medical skills.
Providence Patient
Dr Ruby is a pleasure to work with.
Providence Patient
Very experienced doctor
Providence Patient
I have been seeing Dr. Ruby for 20 years plus. He is knowledgeable, professional and always helpful. He makes you feel you are in good hands
Providence Patient
Dr. Ruby is very knowledgeable and explained treatment options and his recommendations in a way that was respectful and easily understandable.
Providence Patient
Respect Dr Ruby and his staff and have alwsys felt that I have had full support from a team of professionals well qualified.
Providence Patient
Thank you Dr. Ruby for always listening and providing feedback based on your professional experience in a caring way.
Providence Patient
I always have a wonderful experience after I see the doctor. He's honest, has empathy and has his patience in his best interest.His office staff is wonderful. I've never had a problem.
Providence Patient
Great
Providence Patient
Very good service. No wait. In and out quickly. Doctor and staff were professional knowledgeable and friendly.
Providence Patient
Very Good
Providence Patient
In regards to blood test results communication, I get results thru MyChart and Dr. Ruby thoroughly explained the results to me during my office visit.
Providence Patient
Pretty good teamwork among them
Providence Patient
Great Doctor and I wouldn't change ever.
Providence Patient
Dr. Ruby is attentive and provides clear guidance to resolve my medical issues and always is ready to make meaningful recommendations for issues not directly related to his endocrinology practice. He has a terrific bedside manner. He's the best.
Providence Patient
Dr. Ruby is the best doctor I've ever had
Providence Patient
Dr ruby is an amazing, kind, knowledgeable doctor. One of the best doctors I've ever had .
Providence Patient
Happy with my doctor and services.
Providence Patient
Many years of excellent service from an excellent caring doctor
Providence Patient
Excellent visit and care received in preparation for upcoming surgery (pre-op visit).
Providence Patient
Dr Ruby was absolutely awesome! Very friendly, professional and knowledgeable and the staff are super friendly and helpful.
Providence Patient
Dr. Ruby usually is a very good listener.
Providence Patient
Dr Ruby is very knowledgeable and explained my condition in a way I could understand. He took the time to listen to me and answer my questions. He's thorough in his assessment and makes sure all avenues are covered
Providence Patient
I value Ronald Ruby's medical knowledge & have great respect & confidence in his opinion & advice
Providence Patient
Dr.ruby very professional very caring and so much concern for your health Difently recommend him
Providence Patient
Dr. RUBY is a lifesaver, he follows up and treats patients as individuals. Very good doctor the best caring staff. Love them!
Providence Patient
Had a great experience at this facility. Thank you
Providence Patient
Dr. Ruby was the first doctor I saw for osteoporosis who really explained what it is, what happens to the bones, and what the different medications actually do. That made choosing a medication much easier. He took the time to educate me and I really appreciated that since I had feared the medication and understanding them made a huge difference to me.
Providence Patient
Quick check in , friendly staff and the provider was easy to speak to. Thank you
Providence Patient
Exceptional Dr. Not only his knowledge of his expertise but his interaction with his patients.
Providence Patient
Dr. Ruby is an outstanding endocrinology specialist with a wonderful bedside manner. He listens to my concerns about my diabetes and explains things very well.
Providence Patient
Dr. Ruby is an excellent physician, he listen to your statements and explains your concerns. He provides details to medical test and next steps if needed. The office staff are always courteous, kind and helpful.
Providence Patient
Dr Ruby and staff are the Cognoscenti's of health care providers! They are the best!
Providence Patient
Clinical Interests
- Abnormal Cortisol Level Tests
- Abnormal Glucose
- Abnormal Glucose Metabolism
- Addison's Disease
- Adrenal Adenoma
- Adrenal Disorders
- Adrenal Mass Non Malignant
- Adrenal Neoplasm
- Adrenogenital Syndrome
- Androgen Excess
- Androgen Insensitivity
- Calcium Metabolism
- Carcinoid Syndrome
- Cardiovascular Disease
- Congenital Hypothyroidism
- Conn Syndrome
- Cushing Syndrome
- Diabetes Education
- Diabetes Mellitus
- Ectopic Hyperparathyroidism
- Endocrine Disorders
- Feminizing Syndrome
- Fine Needle Aspiration Of Thyroid
- Glucagonoma
- Glucocorticoid Deficiency
- Goiter
- Grave's Disease
- Growth Disorders
- Growth Hormone Abnormalities
- Growth Hormone Deficiency
- Gynecomastia
- Hashimoto Thyroiditis
- Hyperaldosteronism
- Hypercalcemia
- Hypercholesterolemia
- Hyperglycemia
- Hyperglycemic Hyperosmolar Syndrome
- Hyperparathyroidism
- Hyperthyroidism
- Hypocalcemia
- Hypoglycemia
- Hypogonadism
- Hypoparathyroidism
- Hypopituitarism
- Hypothalamic Pituitary Disorder
- Hypothyroidism
- Insulin Pump
- Insulin Resistance
- Insulin Therapy
- Insulinoma
- Low Blood Sugar
- Metabolic Bone Diseases
- Metabolic Syndrome
- Multiple Endocrine Neoplasia
- Myxedema
- Nodular Goiter
- Non Toxic Goiter
- Osteopenia
- Osteopetrosis
- Osteoporosis
- Panhypopituitarism
- Parathyroid Disease
- Parathyroid Hyperplasia
- Pheochromocytoma
- Pituitary Adenoma
- Pituitary Disorders
- Pituitary Tumor
- Primary Hyperparathyroidism
- Pseudohermaphroditism
- Pseudohypoparathyroidism
- Radioiodine Therapy
- Rickets
- Secondary Hyperaldosteronism
- Thyroid Cyst
- Thyroid Disorder
- Thyroid Hormone Resistance
- Thyroid Nodule
- Thyroiditis
- Thyrotoxic Exophthalmos
- Thyrotoxicosis
- Toxic Diffuse Goiter
- Toxic Nodular Goiter
- Type 1 Diabetes
- Type 2 Diabetes
- Uremic Hyperparathyroidism
- Virtual Care
- Vitamin Deficiency
Great practice all around staff and especially Dr.Ruby
Providence Patient