Our Teams

Dr. Daniel Laster

Dr. Daniel Laster

Fellow of the American Academy of Orthopaedic Surgeons

Specialties:

Dr. Laster attended college at Pomona College in Claremont, California where he starred as an all-conference linebacker for four years. He received his Bachelor of Arts in Biology. After his undergraduate studies, he traveled to Washington, D.C. to enroll in medical school at Georgetown University. While at Georgetown, Dr. Laster was admitted into the Alpha Omega Alpha Honor Medical Society. He received his Medical Doctorate in 1995 and started his training in orthopaedic surgery at Tulane University in New Orleans, Louisiana. While at Tulane, Dr. Laster received intensive training in all disciplines of orthopaedic surgery. He is extremely well versed in the specialty of trauma, having served several years of his residency at Charity Hospital New Orleans, a level one trauma center. He graduated from Tulane in 2000.

Dr. Laster joined Risser in the year 2000 and has practiced as a board certified orthopaedic surgeon since that time. His interests include trauma and the disorders of the hip and knee. He specializes in total joint replacement including computer navigated surgery as well as total hip arthroplasty through the anterior approach. He has staff privileges at the Huntington Outpatient Surgery Center, Huntington Memorial Hospital and Arcadia Methodist Hospital. He is a member of the California Orthopaedic Association, the Western Orthopaedic Association, Los Angeles County Medical Association and is a Fellow of the American Academy of Orthopaedic Surgeons. Dr. Laster grew up in Palo Alto, California as the youngest of eight children. He has been involved in the Pasadena region of AYSO and is currently in his fourth year as a head coach. Dr. Laster and his wife, live with their two children in Pasadena and enjoy being involved in the Pasadena and Altadena communities.


Dr. Gregory Northrop

Dr. Gregory Northrop

Board Certified Orthopaedic Surgeon

Sports Medicine Subspecialty Board Certified

Specialties:

  • Knee and Shoulder Surgery
  • Arthroscopy and Sports Injuries
  • Knee Replacement (Partial and Total)
  • Shoulder Replacement (Standard and Reverse)

Dr. Northrop is a board certified, sports medicine fellowship-trained orthopaedic surgeon. He graduated from UC Berkeley with a degree in economics. After working in healthcare consulting for 5 years, Dr. Northrop returned to medical school, obtaining his medical degree from Columbia University College of Physicians and Surgeons in New York. He completed a surgical internship at UC San Francisco and subsequently completed his orthopaedic residency at Stanford University. After finishing his residency, Dr. Northrop obtained additional training in sports medicine and arthroscopy at the West Coast Sports Medicine Foundation.

Dr. Northrop’s specialty areas include operative and non-operative management of sports injuries, arthritis and fractures. He performs all types of knee and shoulder surgery from arthroscopy, ACL reconstruction and rotator cuff repair to partial and total joint replacement. He can therefore appropriately address whatever issue you may have with your knee or shoulder. His philosophy is that people of all ages should remain as active as possible, and as such, his goal is to restore injured or hurting patients to their previous level of function. Whenever possible, conservative non-operative approaches are tried first. When surgery is required, Dr. Northrop employs a variety of approaches, including minimally invasive arthroscopic techniques.

Dr. Northrop was raised in Los Angeles and currently lives in Pasadena. In his spare time he enjoys golfing, skiing, mountain biking and spending time with his family.


Dr. Amir Mostofi

Dr. Amir Mostofi

Board Certified Orthopaedic Hand Surgeon

Specialties:

Dr. Amir Mostofi attended high school in Bakersfield, California and spent time volunteering in several hospitals. This was when he knew he wanted to pursue a career in medicine. As a pre-medical student at UCLA he graduated Magna Cum Laude and with departmental honors in physiological sciences. Dr. Mostofi then moved to Chicago to attend the Rosalind Franklin University of Medicine and Science. He graduated at the top of his medical school class graduating with Alpha Omega Alpha Honors. He spent the next several years in Connecticut for his orthopaedic surgery training at the University of Connecticut. Over the years, Dr. Mostofi has contributed to several books and peer-review publications. He spent his last year of training at Brown University, specializing in hand, upper extremity, and micro-vascular surgery. Training under the direction of Dr. Edward Akelman and Arnold Peter Weiss, two world renowned leaders in hand surgery, Dr. Mostofi has gained tremendous expertise in complex hand disorders. He has finally returned home to Southern California, and we are very proud to have him with us at Risser.

Dr. Mostofi devotes his practice to complex hand, wrist and elbow injuries. He has expertise in caring for common hand problems such as carpal tunnel syndrome as well as fractures, sports injuries, arthritis, and nerve problems in the hand, wrist and elbow. He holds staff privileges at the Huntington Outpatient Surgery Center, Huntington Memorial Hospital and Arcadia Methodist Hospital.

Dr. Mostofi also dedicates significant time to research and teaching. He spends every Wednesday at Keck Medical Center as an assistant clinical professor at USC department of Orthopaedic surgery. He has a true passion for continued learning and education. He plays an active role in the residency and USC - Joseph H. Boyes Hand Fellowship.

Dr. Mostofi lives in La Canada with his wife and two sons. His favorite weekend activity is going for walks with his family, barbequing and watching football.


Dr. Braden Criswell

Dr. Braden Criswell

Specialties:

Dr. Criswell specializes in treating foot and ankle injuries as well as offering general orthopedic care. Before joining the medical team at Risser he was the Clinical Instructor in Foot and Ankle Surgery at Stanford University Medical Center. Dr. Criswell graduated from UCLA before attending the USC Keck School of Medicine and completed his residency at Vanderbilt University and his fellowship and clinical instructorship at Stanford.

At Risser, Dr. Criswell will use his expertise to treat a range of foot and ankle injuries, specializing in patients with sports injuries. He will also work with primary care providers, rheumatologists, pain specialists neurologists, physical and occupational therapists as well as surgeons and other specialists to optimize patient care before and after foot surgeries. He loves spending time with his growing family where they now live in Pasadena.


Dr. Donald Norquist

Dr. Donald Norquist

General Orthopaedic Surgeon

Specialties:

Following in the footsteps of his physician father, Dr. Donald M. Norquist, Dr. Donald J. Norquist completed his undergraduate and medical school training at the University of Southern California. While at the Orthopaedic Hospital in Los Angeles Dr. Norquist began to specialize in orthopaedics. He has also served as the president of the executive committee and member of the board of trustees at St. Luke Hospital. Dr. Norquist was a clinical instructor in Orthopaedics at USC School of Medicine and was the president of the medical alumni association in 1980. For the last 38 years, he has been a dedicated member of the medical community in Pasadena


Dr. Ben Pradhan

Dr. Ben Pradhan

Board Certified And Fellowship Diplomate Spine Surgeon

Specialties:

  • Surgery of the Cervical, Thoracic,and Lumbar Spine
  • Specializing in Minimally Invasive Surgery and Microsurgery of the Spine

Click here for Dr. Pradhan's Curriculum Vitae

Dr. Ben B. Pradhan is a board certified and fellowship trained Orthopaedic Spine Surgeon, whose practice focuses solely on spine problems. He treats cervical, thoracic, and lumbar spinal disorders. As the former Director of Clinical Research, and Spine Surgery Fellowship Coordinator at The Spine Institute of Santa Monica, CA and Cedars-Sinai Medical Center, he has been very involved in research and teaching within the ever changing field of spine surgery. He presently heads the spine surgery department of the Risser in Pasadena, CA. Risser is one of the most established orthopaedic groups in Southern California, established in 1937, and one with a long tradition of spinal care.

Dr. Pradhan is a Princeton graduate. He started his education and career as an aerospace engineer, but was drawn toward the engineering and technological advances being made in the field of spine surgery. After completing high school as valedictorian, he graduated from Princeton with academic honors, was recruited by UCLA for a PhD in aerospace engineering with a UC Chancellor's fellowship where he was nominated for outstanding graduate engineering student, and completed his MD training at UCLA with a Dean's scholar recognition. He completed his orthopaedic surgery residency at UCLA and his spine surgery fellowship with Dr. Rick Delamarter, whom he subsequently joined as a partner at The Spine Institute (Santa Monica, CA - now at Cedars-Sinai) for the next four years. Dr. Pradhan joined Risser on a part time basis for two years following the untimely passing of his predecessor Dr. Charles Prickett there. Dr. Pradhan fully moved his practice to Risser in Pasadena in August 2008.

During the course of his extensive education and training, and subsequently his practice and teaching, Dr. Pradhan has compiled over 300 peer reviewed scientific publications, presentations, abstracts, and posters. He has presented his experience on topics of modern spine surgery in major spine surgery research and medical society meetings internationally as well as nationally. He has also been awarded various honors from major spine surgery societies.


Dr. Jared Myers

Dr. Jared Myers

Physical Medicine and Rehabilitation (PM&R) specialist / Physiatrist

Specialties

  • Physical Medicine and Rehabilitation, Board Certified.
  • Pain Medicine / Interventional Pain Management

Subspecialties

  • Electrodiagnostic Medicine (EMG/NCS)
  • Regenerative Medicine (Prolotherapy, Platelet Rich Plasma, and Stem Cell Therapy)
  • Osteopathic Manipulative Medicine
  • Medical Acupuncture

Dr. Myers is a board certified Physical Medicine and Rehabilitation (PM&R) specialist (physiatrist), who is fellowship trained in pain medicine including interventional pain management. He attended California State University of Northridge and double majored in biology and chemistry. Dr Myers gravitated towards medical institutions that embody his long held deep belief in whole person care. He obtained his medical degree from Western University of Health Sciences College of Osteopathic Medicine of the Pacific (COMP), where compassion and a holistic hands-on approach is valued above all else. He was honored to have been elected chief resident (2014-2015) at Loma Linda University Medical Center, where he completed his residency and fellowship training, and where the core integrative principle is encapsulated by organization’s motto, To Make Man Whole. During his pain medicine fellowship Dr Myers obtained additional training and certification in medical acupuncture (at Helms Medical Institute) to widen his already extensive non-operative pain alleviating skill set.

Dr. Myers’ core passion and true satisfaction comes from treating pain and loss of function, the two symptoms he feels are the most devastating to a person’s daily life. As such he employs all non-surgical modalities to treat the full scope of spinal, musculoskeletal, peripheral joint and nerve disorders. He treats high functioning sports athletes to geriatric patients with degenerative arthritic conditions. He performs electrodiagnostic (EMG) evaluations, advanced minimally invasive fluoroscopy and ultrasound guided injections, spinal cord stimulation (neuromodulation) implants, osteopathic manipulative medicine and acupuncture.

Dr. Myers is proud to have joined the Risser family in 2016 and is available at both the Pasadena and Arcadia offices. He additionally holds privileges at Huntington Memorial Hospital and ambulatory surgical center.

Born and raised in Johannesburg, South Africa, Dr Myers and his two younger brothers grew up in a health conscious vegetarian household in which physical fitness was heavily emphasized. He recently moved to Glendale with his wife and daughters and is excited to become an active part of the community.

OFFICE MANAGEMENT

DEBBIE CONLEY

DEBBIE CONLEY

Practice Manager

Debbie joined the practice in 1987 and is responsible for the performing the duties which enable the staff and physicians to take care of the patients and business efficiently. Debbie enjoys interacting with other medical practice managers in the community.

Debbie is a member of the American Association of Orthopaedic Executives (AAOE) and the California Medical Group Management Association (CA MGMA).

Debbie was born and raised in Pasadena California. After raising two boys that kept her family very involved in their passion of baseball and camping, she continues to enjoy her hobbies of needle pointing, gardening, and reading. Debbie is a fundamental part of practice; for any questions or concerns regarding your care please contact her anytime.


CLINICAL ADMINISTRATIVE ASSISTANTS

ALLANA HUNT

ALLANA HUNT

Clinical Administrative Assistant to Dr. Laster

Allana is the clinical administrative assistant to Dr. Laster. She will be doing all of the scheduling for MRI, CT scan, surgeries, etc. She keeps Dr. Laster's office running smoothly, please call Allana if you have any questions or concerns.

WENDY SERRANO

WENDY SERRANO

Clinical Administrative Assistant to Dr. Northrop

Wendy is Dr. Northrop's clinical administrative assistant. She is vital to the flow of the office and helps Dr. Northrop schedule surgeries. Wendy also will be doing all of the scheduling for MRI, CT scan, special braces, etc that is needed for Dr. Northrop's patients. If you are Dr. Northrop's patient, she is the go to person that can help you with all of your needs.

BLANCA BETANCOURT

BLANCA BETANCOURT

Clinical Administrative Assistant to Dr. Mostofi

Blanca is the clinical administrative assistant to Dr. Mostofi. She is excellent in helping answer all your questions. She will assist you with surgery scheduling, MRI, CT, and nerve conduction testing. She can also help coordinate your therapy. Blanca helps make sure you get the care you need from Dr. Mostofi in a timely and efficient manner. If you have any question please call her anytime!

MARICELA TELLEZ

MARICELA TELLEZ

Clinical Administrative Assistant to Dr. Mostofi

Maricela is the clinical administrative assistant to Dr. Mostofi.

AISHA GRAHAM

AISHA GRAHAM

Clinical Administrative Assistant to Dr. Criswell

Aisha is the Clinical Administrative Assistant to Dr. Criswell. She will assist you with all your questions and concerns that you have in a timely manner. In addition, Aisha will schedule and coordinate all your diagnostic testing, injections and appointment needs.

JEAN ALVARADO

JEAN ALVARADO

Clinical Administrative Assistant

Jean is the clinical administrative assistant for Dr. Ben Pradhan. She is an excellent surgery scheduler who will take you thru the process, step by step, so you don’t need to remember a long list of things to do. She will coordinate your care so that your surgery scheduling process is smooth. Whether it is surgery, pre-ops, MRI's or other any other testing, please give Jean a call with any questions or concerns and she will make sure they are addressed.

Lisset Blancarte

Lisset Blancarte

Clinical Administrative Assistant

Lisset is the clinical administrative assistant to Dr. Pradhan.

Angela Otero

Angela Otero

Clinical Administrative Assistant

Angela is the clinical administrative assistant to Dr. Myers. She will be scheduling all of the procedures, MRI, CT scans, etc. She is an essential part of the pain management team, please call Angela for any questions or concerns.

Kimmy Lemus

Kimmy Lemus

Clinical Administrative Assistant

Kimmy is the clinical administrative assistant to Dr. Myers. She will be scheduling all of the procedures, MRI, CT scans, etc. She is an essential part of the pain management team, please call Kimmy for any questions or concerns.


RADIOLOGY

JIM CLEMENS

JIM CLEMENS

X-Ray Technician

Jim will be helping us obtain radiographic information in caring for your orthopaedic needs. He is trained in specialized orthopaedic radiography. You may find that Jim has a student with him at times. Jim volunteers as an instructor and our office is a satellite office for local schools training new radiology technicians.

Obtaining an x-ray of a painful body part can be quite uncomfortable sometimes. Jim appreciates that and attempts to get us the information we need with the least amount of discomfort and exposure to you. Jim can also help you obtain a copy of your radiographs for your records. If you have any questions or concerns regarding your radiographs please feel free to ask Jim for help.

Robert Mante

Robert Mante

X-Ray Technician

Robert is our x-ray technician at our Arcadia facility. He is trained in specialized orthopaedic radiography. Robert also assists with casting, splinting, and bracing.


CASTING, SPLINTING & BRACING

LARRY ROUSE

LARRY ROUSE

Orthotech

I am the Orthotech here at Risser Orthopaedic Group, my responsibilities include casting, splinting, and bracing. I also assist the doctors with fracture treatment and the patient's aftercare. Also my duties include support for radiographic imaging and nursing in the office. I look forward to helping you and your family with your orthopaedic needs. I am from southwestern United States. My background is in coaching and sports and recreation. My hobbies include long distance cycling and endurance sports. One of my enjoyments of my position here is to see patients get back to doing the activities they were doing before getting injured. Look forward to meeting you.


WORKERS COMPENSATION

ARACELY GARCIA-LUNA

ARACELY GARCIA-LUNA

Workers Compensation & Disability Coordinator

Cely is our primary workers compensation and disability coordinator. The paperwork involved in helping our patients with their employment, attorney, and worker's compensation carrier can be overwhelming. Cely is excellent in assisting you and the physicians with all of the paperwork so we can focus on your health and getting you back on your feet! She is available to talk to you or your representative to help coordinate all of your needs.


BILLING

DOMINIQUE BAÑUELOS

DOMINIQUE BAÑUELOS

Assistant Practice Manager /Billing Manager

Dominique, Andrea, Lisa, Adela and Angela are part of our billing department. They can help you with insurance questions, understanding your invoice, and any billing concerns. They also assist Debbie Conley with our internal accounting. Please contact them anytime regarding your billing needs.

ANDREA HERNANDEZ

ANDREA HERNANDEZ

Billing

LISA ROMERO

LISA ROMERO

Billing

ADELA MOAWAD

ADELA MOAWAD

Billing

ANGELA GOMEZ

ANGELA GOMEZ

Billing


MEDICAL RECORDS

RITA RAMIREZ

RITA RAMIREZ

Medical Records

Rita and Betty handle medical records. They are responsible for your medical chart which includes test results, physician's notes, procedure and radiographic reports, and other personal medical information needed for our practice so that we can care for you in an organized and reliable manner.

They are an integral part of how we communicate with other medical offices and practitioners. They also ensure your privacy and that our office is HIPPA compliant. For assistance with your medical records, please feel free contact Rita or Betty.

BETTY LORETO

BETTY LORETO

Medical Records


RECEPTIONISTS

ROCHELLE LEWIS

ROCHELLE LEWIS

Receptionist

Rochelle, Irma and Natalie are the first people you see when you walk through our doors. They will help you with your paperwork, coordinate your schedule with one of our physicians, get you in touch with the right people for your questions and concerns, assist you with transportation needs, and help make your follow up appointments before you leave the office.

IRMA MENDOZA

IRMA MENDOZA

Receptionist

NATALIE HEREDIA

NATALIE HEREDIA

Receptionist

Crystal Herrera

Crystal Herrera

Receptionists