Welcome to Southland Arthritis & Osteoporosis Center

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Doctors and Staff
About Southland Arthritis & Osteoporosis Center, Inc

Inland Empire’s Largest Rheumatology Group

Southland Arthritis was founded by Dr. CV Mehta and his wife Deni Mehta in 1983 in the city of Hemet. Over the years, we have expanded throughout Southern California and offer a variety of services for patients with Rheumatic diseases.

Board Certified Doctors

Our Physicians are Board Certified in Rheumatology and are experts in the non-surgical management of Systemic Autoimmune Diseases, Arthritis and Osteoporosis.

Graduate Medical Education

Several of our Physicians hold Clinical Faculty positions at Academic Medical Centers and we are a Rheumatology teaching site for doctor's in training.

Clinical Trials

We have 2 clinical trial centers in the cities of Hemet and Riverside. We conduct FDA clinical trials on various Rheumatic Diseases such as Rheumatoid Arthritis, Lupus and Psoriatic Arthritis

Services Offered

Here are some of the main services we offer. To learn more please contact one of our offices located near you.

arthritis joint injection

Joint Injections

The aspiration (draining) and injection of muscles and joints can

Infusion Center

Infusion Center

Many conditions such as Rheumatoid Arthritis, Systemic Lupus


Bone Densitometry

Osteoporosis is a skeletal disorder which is characterized by low bone

Musculoskeletal Ultrasound

Musculoskeletal Ultrasound

Musculoskeletal Ultrasound machines use high-frequency sound

Most Common Diseases

Here are some of the main diseases we treat. To learn more please contact one of our offices located near you.


Rheumatoid Arthritis

Rheumatoid Arthritis is a chronic inflammatory disorder affecting many

Systemic Lupus Erythematosus

Systemic Lupus Erythematosus

Systemic Lupus Erythematosus or Lupus is an autoimmune disease which


Psoriatic Arthritis

Psoriatic arthritis (PsA) is a chronic inflammatory autoimmune disease


Crystalline Arthropathies

Crystalline arthropathies are a group of inflammatory joint disorders associated

Spondyloarthritis of the spine, for many years called ankylosing spondylitis,

Ankylosing Spondylitis

Spondyloarthritis of the spine, for many years called ankylosing



Osteoarthritis is the most common type of arthritis and affects millions

Chronic Back Pain

Chronic Back Pain

Back pain affects a large number of adults at some time in their lives.


Advanced Osteoporosis

Osteoporosis is a condition of bones in which bones become brittle and break



Fibromyalgia is a disorder characterized by widespread musculoskeletal pain and

Dr Amal Mehta is a very compassionate and professional doctor. He takes the time to listen to you. He also takes the time to explain things in a way you can understand. I've never felt rushed during a visit. It's been my experience in California that good drs are hard to come by. Dr Mehta is an exception. I highly recommend him.

Angie Dunbar


I've been going to Dr. Mehta for several years and have been extremely happy with the care and treatment he's provided. He's helped me get my lupus under control and I have been feeling great. I appreciate Dr. Mehta listening to what I need and making sure everything is in check.

Nikki Aguirre


Dr. Philpotts is very attentive, thorough caring and listens to all my mom's concerns. If it wasn’t for him we wouldn’t have found the diagnoses for my mom and get her the care she needs. The office is always clean and the staff is always friendly and welcoming. I’ve heard horror stories from people about their Rheumatologist. But, I will definitely say going to Southland Arthritis and seeing Dr. Philpotts is a breath of fresh air and we’ll continue to get treatment here for the foreseeable future. Thank you for all that you do for your patients.

Shelita Martinez


Everyone here was wonderful – from the front desk, to Dr. Bravo and her assistant. They all put me at ease. Dr. Bravo explained my lab results in both technical terms and in terms a lay person would understand. Wait times were short. This doctor visit was a very pleasant experience all round.

Jean McIntyre Lusky


Dr. Trivedi is the best doctor I've been to since as long as I can remember. She is so kind, informative, thorough and most importantly genuine and caring. Unfortunately, finding a doctor this amazing is so rare and I am extremely happy to have found her! I feel so comfortable and taken care of. Thank you for being awesome Dr. Trivedi. You most definitely change lives for the better.

Breanna Crane


Dr Panikkath and staff are very friendly and professional. Dr Panikkath dedicated time and answered all my questions and explained thoroughly. Had a pleasant experience. Would recommend this specialist to anyone.

Nancy Gomez


Southland Arthritis is a great office. Dr Ramaswamy is great! He really listens to you and does whatever is needed to treat your symptoms. His staff is wonderful! Always so helpful and professional. I would recommend them to everyone!

Pamela Stone


Dr Colburn is amazing and very thorough. He knows his stuff and is always helpful. Definitely listens to his patients.

Amanda Amarilla


I absolutely recommend this clinic to everyone suffering from RA. My husband started seeing Dr Chavez in April of this year and I can honestly say I see a 75% improvement in his health. Dr Chavez is very proactive with her treatment plan, she is compassionate, professional and knowledgeable. Staff is very nice and professional as well.

Rebeca Guzman


The girls at the front desk are friendly and so helpful. Come to the back, and the medical assistants are also friendly. I have seen Angel Bustamante and he explains everything so well, answers any questions I may have. There is also minimal wait time! Definitely recommend!

Liliana Lemus Diaz


Today I saw Lisa Asfahani. I was very impressed by her such a good listener and answered my questions and very informative. I look forward to being your patient. Thank you so much.

Linda Gonzales


The Southland Arthritis medical group has been very good and professional to me. The doctors are very caring and knowledgeable. They really care and listen to your personal needs. I highly recommend this facility.

Sonja Novak


Our Blog

Latest Blog & Articles

Find answers to your questions or read interesting articles about Arthritis and Rheumatology treatments

Dr. Chandrakant Mehta

Dr. Chandrakant Mehta

Dr. Chandrakant Mehta was the first Rheumatologist to practice in the cities of Hemet and Menifee and has been providing medical care in Southern California since 1983. Dr. Mehta and his wife, Deni Mehta, established Southland Arthritis & Osteoporosis Medical Center and have been blessed with a very loyal and hardworking staff! Dr. Mehta completed his Internship and Residency in Internal Medicine at Easton Hospital in Pennsylvania and completed his fellowship at Loma Linda University. Dr. Mehta is dual Board Certified in Internal Medicine and Rheumatology. Dr. Mehta enjoys walking, traveling and playing with his grandchildren!


Dr. Keith Colburn

Dr.Keith Colburn is a distinguished Professor of Medicine at Loma Linda University School of Medicine where he served as the Chief of Rheumatology until 2014 and was the Chief of Rheumatology at the Loma Linda VA Hospital until 2016. Dr.Colburn has published over 50 articles in medical journals and was the associate editor for the Journal of Investigative Medicine. He is a Fellow of the American College of Physicians and American College of Rheumatology and is dual board certified in Internal Medicine and Rheumatology. Dr.Colburn has trained many of the practicing Rheumatologists in Southern California and he enjoys traveling and birdwatching.

Dr. Amal Mehta

Dr. Amal Mehta

Dr. Amal Mehta grew up in Hemet and was heavily influenced by his father’s passion for Medicine. Dr.Mehta earned a B.A. in Economics from UCLA, a Healthcare MBA from George Washington University and Medical Degree from Ross University School of Medicine. Dr. Mehta completed his Internal Medicine Internship and Residency at Banner University Medical Center and his Rheumatology Fellowship at Loma Linda Medical Center. Dr. Mehta is Dual Board Certified in Internal Medicine and Rheumatology and has participated as an investigator in over 50 clinical trials for various Rheumatic diseases. Dr. Mehta is Clinical Faculty at Loma Linda Medical Center and is involved in Rheumatology education for the Family Medicine Residency Program at Loma Linda’s Murrieta Campus. Dr.Mehta enjoys playing tennis, traveling and spending time with his family and he looks forward to making a positive impact in the lives of his patients.

Dr. Dharmarajan Ramaswam

Dr. Dharmarajan Ramaswamy

Dr.Ramaswamy completed his Internship and Residency in Internal Medicine at Lincoln Medical Center in New York. Dr.Ramaswamy completed his Rheumatology fellowship at the University of Southern California and is Board Certified in Internal Medicine and Rheumatology. Dr.Ramaswamy is an avid reader and enjoys spending time with his family.

Dr. Janki Trivedi

Dr. Janki Trivedi

Dr. Trivedi completed her undergraduate degree at the University of Michigan, Ann Arbor MI which was followed by medical school at the University of the Caribbean. After medical school she completed her residency in Internal Medicine with Aurora Health Care in Milwaukee, WI. This was followed by a rheumatology fellowship at Georgetown University Medical Center in Washington D.C. Dr. Trivedi enjoys spending her free time cooking, reading, exercising and spending time with her family.

Dr. Natalia Chavez-Chiang

Dr. Natalia Chavez Stewart

Dr. Natalia Chavez Stewart received her medical degree from the Universidad San Martin De Porres in Lima, Peru. She completed her residency in Internal Medicine and Fellowship in Rheumatology at the University of New Mexico. She is board certified in Internal Medicine and Rheumatology. Dr. Stewart is passionate about healthy living and its positive impact on physical and mental health, motivating a healthy lifestyle on her patients when treating rheumatic diseases. The addition of Dr. Stewart expands Southland Arthritis Rheumatology capacity and responsiveness to patients and their families. Dr. Stewart enjoys spending time with her family, paddle boarding, hiking, swimming, dancing and she is fluent in Spanish. She loves California and is pleased to be part of the excellent team of Rheumatologists at Southland Arthritis.

Dr. Purva Chhibar

Dr. Purva Chhibar

Dr. Purva Chhibar is a passionate and empathetic rheumatologist who goes above and beyond to care for her patients by creating personalized treatment plans for each patient using an integrative approach including combining medications, diet and lifestyle modifications. She values the importance of an anti-inflammatory diet, acupuncture, yoga, meditation and tai-chi, when appropriate. Dr. Chhibar strongly advocates for her patients and strives to provide them with the most up-to-date and evidence-based care. Her patients describe her as compassionate, caring, personable and a good listener. She has done significant work in promoting social justice in the medical setting and provides a safe space to patients of all races, backgrounds, ethnicities, gender identities and sexual orientation.

Dr. Chhibar was born in India where she completed medical school before moving to Los Angeles. She completed her Internal Medicine Residency training in 2016 followed by her Rheumatology Fellowship training in 2018, both at the University of Southern California. She is dual board-certified in Rheumatology and Internal Medicine.

Dr. Chhibar specializes in treating diseases like rheumatoid arthritis, psoriatic arthritis, osteoarthritis, ankylosing spondylitis, systemic lupus erythematosus, cutaneous lupus, vasculitis, recurrent idiopathic pericarditis, tendinitis, bursitis, gout, pseudogout, post-COVID-19 inflammatory conditions, raynaud’s disease, scleroderma, inflammatory myositis, fibromyalgia, adult onset still’s disease, familial mediterranean fever and other auto-inflammatory disorders.

In addition to treating patients, Dr. Chhibar contributes to the field of medicine by sharing medical findings and presenting her work at multiple international rheumatology conferences, including the American College of Rheumatology (ACR) and the European League Against Rheumatism (EULAR).  In February 2017, Dr. Chhibar was featured in the ACR magazine, “The Rheumatologist”.

In her spare time, she volunteers at several Non-Profit Organizations. She values the importance of self-care and practices yoga and meditation. Dr. Chhibar likes to paint, travel, and take long walks with her dog. She enjoys spending quality time with her family and friends.

Dr. Stephanie Song

Dr. Stephanie Song is an east coast native from the suburbs of Philadelphia, PA. She completed medical school at the Lewis Katz School of Medicine at Temple University, which was followed by Internal Medicine residency at Temple University Hospital. She then completed Rheumatology fellowship training at the Hospital of the University of Pennsylvania. Dr. Song has expertise in
musculoskeletal ultrasound, has a clinical interest in Rheumatoid Arthritis, and is a member of the American College of Rheumatology. In her spare time, she enjoys spending time with her husband, family, friends and dog. She is committed to and inspired by her patients, dedicated to practicing thorough and evidenced-based care, and pleased to be a part of the team at
Southland Arthritis.


Dr. Amit Sureen

Dr. Amit Sureen earned a B.S. from UC Irvine, followed by a M.S. and Doctor of Osteopathic Medicine degree from Lincoln Memorial University – DeBusk College of Osteopathic Medicine. Dr. Sureen completed his Internal Medicine residency at Texas Tech University Health Sciences Center in El Paso, and his Rheumatology Fellowship at the University of Missouri.  

Dr. Sureen’s approach to treating rheumatic diseases involves actively listening to patients to understand their needs, providing education, and using evidence-based medicine to achieve the best possible outcomes. He believes that each patient’s experience and needs are unique, and creates individualized treatment plans to meet each patient’s specific health goals. Dr. Sureen feels privileged to build lasting relationships with his patients and genuinely enjoys providing for their care and comfort. 

Dr. Sureen specializes in treatment of Arthritis, Lupus, Rheumatoid Arthritis, Osteoporosis, Gout, Systemic Lupus Erythematosus, Scleroderma, Mixed Connective Tissue Disease, Inflammatory Myopathies, and Vasculitis.

In his spare time, he enjoys playing basketball, hiking, exercising and traveling. He genuinely cares about the well-being of his patients and is proud to be a part of the Southland Arthritis team. 

Angel Bustamante, PA-C.

Angel Bustamante, PA-C.

Angel Bustamante PA-C completed his Bachelor’s degree in Biological Sciences at California State University Fullerton. He then earned his Master’s degree in Physician Assistant Studies at Western University of Health Sciences in the city of Pomona. He is nationally certified as a Physician Assistant. He grew up in Orange County prior to settling in the Inland Empire and has been treating Rheumatic diseases and performing joint injections since 2003. He enjoys snowboarding, jet skiing, traveling, exercising and spending time with his family and friends. He aspires to make a difference in his community by providing compassionate care and improving the quality of life of his patients.

Lisa Asfahani, PA-C

Lisa Asfahani, DHSc, PA-C

Lisa Asfahani DHScPA-C is certified and state licensed Physician Assistant practicing in Rheumatology. Lisa graduated from California State Polytechnic University with Bachelor’s degree in Biology, her Master’s degree in Physician Assistant Sciences from Loma Linda University in 2011 and most recently, her Doctorate degree in Health Sciences from A.T. Still University of Health Sciences in 2022. Lisa is experienced in both Rheumatology as well as in General Medicine andinvolved in numerous clinical studies in the field of Rheumatology. She is member of several professional societies including the Association of Rheumatology Professionals (ARP) and California Academy of Physician Assistants (CAPA). Lisa’s goal in patient care is to treat each patient/provider interaction as an opportunity serve, to teach, and to heal. She enjoys traveling and spending time with family whenever she can. 

Chris Yuchao Jin

Chris Yuchao Jin

Chris Yuchao Jin PA-C is a Rheumatology Physician’s Assistant who earned a Master’s degree in Physician Assistant Studies at Gannon University in Erie Pennsylvania. He has expertise in performing ultrasound guided joint injections and has been involved in numerous clinical trials in the field of Rheumatology. Chris believes the most important part of any patient interaction is active listening, empathy, and compassion. He hopes to establish long term relationships with his patients, educate and advocate for their health, and improve their quality of life. In his time off he enjoys watching movies, going to music concerts, traveling, photography, and film making.

Alvin Yan, PA-C

Alvin Yan, PA-C, is a board-certified Physician Assistant. He attended California State Polytechnic University, Pomona, where he majored in Biology before moving to North Carolina and obtaining his Master of Physician Assistant Practice degree at Campbell University. Alvin’s first introduction to Rheumatology was during his clinical elective rotation at WakeMed Raleigh, which instilled in him a sense of wonder and fascination with the specialty. Alvin treats a variety of inflammatory joint diseases, including Rheumatoid Arthritis, Psoriatic Arthritis, and Gout. He continues to advocate for patients afflicted with rheumatologic conditions and provides patient-focused, individualized and compassionate care for all of his patients. As a southern California native, Alvin enjoys spending time at the beach, hiking trails, and experiencing the newest food trends.

Deni Mehta

Deni Mehta

Deni Mehta – co-founded the medical practice with her husband on June 14th, 1983 in the city of Hemet, California. Deni has a Bachelors degree in Chemistry and a Bachelors degree in Education. Deni is the Practice Administrator for Southland Arthritis and is also a certified DEXA technician. Deni has been instrumental to the growth of Southland Arthritis and has established strong business relationships with other providers and administrators. Deni enjoys reading, traveling and spending time with her family.

Dr. Marc Phillpotts

Dr. Marc Phillpotts

Dr. Marc Phillpotts is a board certified physician in Internal Medicine and Rheumatology. Dr. Phillpotts earned his medical degree at The University of the West Indies in Jamaica. He moved to Washington, DC where he completed Residency training in Internal Medicine at Howard University Hospital, then Fellowship training at the George Washington University. He has held an academic position as an Assistant Professor of Medicine at the GW SMHS. He is a member of several professional societies including the American Medical Association, International Society of Clinical Densitometry and American College of Rheumatology. Dr. Phillpotts has expertise in musculoskeletal ultrasound and bone densitometry. In his spare time, Dr. Phillpotts enjoys running, swimming and tennis.