Ronald J. Ruby, MD
Redondo Beach, CA 90277
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.
It took several attempts to be cleared to make an appointment bur the effort was well worth the trouble. My ongoing metabolic concerns with my primary care were addresses to my satisfaction
Providence Patient
Wonderful experience. The best total care.
Providence Patient
Dr. Ruby had good insight and a clear understanding of the challenges of my health history. He explained everything thoroughly, to my understanding and satisfaction.
Providence Patient
Dr. Ruby is a Fine, professional, courteous, knowledgeable, and Concerned doctor! He is the best!
Providence Patient
Appreciate the care and moderation in assigning and evaluating ongoing prescriptions.
Providence Patient
Dr. Ruby is a very caring provider and answers all questions clearly.
Providence Patient
Very professional. I've been seeing Dr. Ruby for over 40 years and always enjoy my visit. I am very fond of him, enjoy talking to him and absolutely trust him with my healthcare.
Providence Patient
Dr Ruby prescribed a chest x-ray on the of visit. He called me at home to inform me of the result as soon as he was through evaluating the result. Very impressed.
Providence Patient
I have been extremely satisfied with the care received from the entire staff, from each doctor to all support staff in this office.
Providence Patient
Dr. Ruby and his staff are always great to visit and very thorough.
Providence Patient
Dr. Ruby and his staff are TEN STAR PLUS
Providence Patient
Dr. Ruby is a very caring and dedicated professional who has always acted in our best interest.
Providence Patient
Dr Rudy is the most professional doctor I've ever known and he cares about his patients.It will be a very sad day when he retires.
Providence Patient
I am very thankful for being at Providence under Medi-Cal and prior insurance. Everyone is very nice and courteous to their patients. They really show that they care. I recently had transferred my mother to Providence and she was amazed how everything runs here especially on referrals. I really appreciate you all and thank you for everything that you do.
Providence Patient
Dr.Ruby is very knowledgeable about new methods of dealing with patients that had a liver transplant & information on cancer care.
Providence Patient
Best part of the visit is Dr Ruby. He is very caring and knowledgeable
Providence Patient
I like Dr Ruby and his staff they are very friendly and considerate
Providence Patient
I get the best care from Dr Ruby and highly recommend him to anyway! His office staff is wonderful!!!
Providence Patient
The care I get from Dr Ruby and his staff are top notch.
Providence Patient
Dr Ruby is such a good and caring doctor that I look forward to going for appointments with him.
Providence Patient
Excellent care and attention from all individuals and professionals
Providence Patient
Great staff and of course Dr Ruby is simply the best!
Providence Patient
Dr. Ruby is an exceptional and caring endocrinologist who is treating a specific medical issue. I feel so confident about his care and am making continuous and steady progress of improvement under his care. Wished I was under his care sooner when I was first diagnosed with my medical issue.
Providence Patient
This was a routine visit to discuss blood work. I was satisfied with the results.
Providence Patient
Have seen dr. Ruby many years for osteoporosis. He carefully reviews tests and alters treatment as needed
Providence Patient
Very nice doctor
Providence Patient
All good.
Providence Patient
Dr. Ruby and his staff are very good.
Providence Patient
Dr Ruby is the best. So knowledgeable and patient
Providence Patient
Dr Ruby and his staff are always friendly, helpful & knowledgeable.
Providence Patient
The hole office do a great job very professional
Providence Patient
Wonderful doctor. This wS my first visit with him. He spent alot of time with me, listening to what I was saying and answering all my questions.
Providence Patient
Very good experience
Providence Patient
Since he is so well aware of my medical history, he gave me reliable advice on medical decisions I have made, and will need to make, in the near future, such as medicines and procedures he recommends that I should have, or should avoid.
Providence Patient
Dr Ruby has been my endocrinologist for 25+ years I am very lucky to have him as my endocrinologist
Providence Patient
I never have to wait long to see Dr Ruby k his staff is excellent
Providence Patient
It's always a good experience at Dr. Rubys office.
Providence Patient
Dr Ruby is an outstanding person and Dr.
Providence Patient
Awesome!
Providence Patient
Excellent
Providence Patient
Dr Ruby and staff are the BEST
Providence Patient
All good and professional
Providence Patient
Dr Ruby is always very patient, kind, friendly and easy to talk to. He takes his time listening to any concerns and never rushes through the appointment.
Providence Patient
Dr Ruby is a wonderful caring knowledgeable person
Providence Patient
Always good
Providence Patient
Dr Ruby listens well, offers excellent advice, knows all my health needs. Dr Ruby is a real advocate for me as a patient. He goes the extra mine for my medical care and respects me as an intelligent person regardless of my age.
Providence Patient
Dr Ruby was compassionate and extremely helpful and answered all my questions .
Providence Patient
Dr. Rudy's relevant knowledge is amazing! He takes the time to give you the information you need.
Providence Patient
All good experience
Providence Patient
Dr Ruby extremely caring & concerned with my diabetes and how to best manage
Providence Patient
Dr. Ruby was extraordinary. I am transferring my care to him. He shared up to date research and balanced recommendations. He was top notch
Providence Patient
Dr. Ruby truly cares about my health and provides great advice and knowledge into my health issues.
Providence Patient
I have been seeing Dr Ruby for over 20 years and he has kept me on track. I am grateful everyday that he is my Dr.
Providence Patient
The "Dr. Ronald Rudy" team is EXCELLENT. Service, communication, follow thru, professionalism all top notch. Dr. Ruby is outstanding. His standards exceed the norm and therefore his staff perform well beyond the norm.
Providence Patient
Dr Ruby is always professional- a true class act!
Providence Patient
Dr. Ruby and his staff are excellent at what they do. I've been a patient of Dr. Ruby for years now. I would not see anyone else. He is professional, caring and kind.
Providence Patient
Excellent knowledge of my health condition, past and present.
Providence Patient
I am so impressed with Dr. Ruby's knowledge and professionalism and he is nice to boot!
Providence Patient
Good experience
Providence Patient
Dr Ruby is an outstanding physician
Providence Patient
I've gone to Dr. Ruby for over 20 years, and he is the best.
Providence Patient
My experience at Dr Ronald Ruby's office is always welcoming. The staff is very kind and helpful. Dr Ruby is very thorough with what he does. He cares for his patients and does whatever he can to help you. He takes the time to hear about your questions and concerns and really explains everything in detail. He's a wonderful doctor and is highly recommended.
Providence Patient
Dr Ruby is a fantastic doctor and great guy. He listens and provides needed feedback to all of my questions and concerns.
Providence Patient
Good bedside manner
Providence Patient
Took the time to explain all options for treatment and answers all questions.
Providence Patient
As always, Dr. Ruby and his entire team are FIVE STAR PLUS
Providence Patient
Dr. Ruby is a caring and knowledgeable doctor. He's the best!
Providence Patient
Dr Ruby and his staff are all very nice and very helpful.
Providence Patient
I have been seeing him for the last 40 or so years.
Providence Patient
Provider is very easy to talk to about any subject. I feel he made a profound difference in my health.
Providence Patient
Always a good experience with my health care doctors and assistants great
Providence Patient
Very happy with the help
Providence Patient
Great practice all around staff and especially Dr.Ruby
Providence Patient
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
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
All good
Providence Patient
Very grateful of the medical care from Dr Ruby
Providence Patient
Excellent.
Providence Patient
Dr. Ruby is excellent.
Providence Patient
I just said Dr Ruby is the best
Providence Patient
Very happy with service.
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
I truly appreciate the care given by the provider, and how he explains things in an easy way to understand.
Providence Patient
Really appreciate Dr Ruby and his staff
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
Dr Ruby is an excellent doctor.
Providence Patient
All good
Providence Patient
Dr Ruby always takes the time to answer my questions and concerns
Providence Patient
Excellent!!!!!!!!!!!
Providence Patient
Dr Ruby & staff are theCOGNOSCENTI'S for all things health related!
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 & his staff are the best!
Providence Patient
Dr. Ruby is a very caring doctor, He took a lot of time to explain everything to me,
Providence Patient
Dr. Ruby is excellent, very knowledgeable and kind hearted.
Providence Patient
Everyone was great
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
Dr. Ruby is great very personal and caring
Providence Patient
I am very happy with my doctor and the staff thank you
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
All Good
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
Excellent care always and very considerate of his patients.
Providence Patient
Good doctor and appointment schedule
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
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
Excellent doctor!
Providence Patient