Specialty Care

Our mission is simple: build a healthier community. It’s what we’ve been doing for over 130 years, and today we’re doing it in more ways than ever before.

Specialty Care

COVID-19 Information

Updated February 5, 2021:

We have received a limited supply of the the COVID-19 vaccine. Following guidance from local public health authorities, we have begun vaccinating some of our most vulnerable patients through an invitation-only system. As our vaccine supply permits, we will remain a vaccination option for eligible patients.

For more information visit our COVID-19 Information page. Check it regularly for updates.

Thank you for your patience during this rapidly evolving development in the fight against COVID-19.

With board certified professionals and advanced practitioners on our team, you can rest-assured that you or your loved one will be in highly qualified hands.

We are currently accepting new patients through Telehealth visits, though availability may be limited. Please call us at (626) 397-8368 to schedule a Telehealth visit with a physician currently accepting new patients.

Our Specialty Services


Jennifer Chang, MD

Yang Shen, MD

Mahtab Sohrevardi, MD

Since 2016, our Specialty office has offered pediatric endocrinology services to the community. In addition to providing care for young patients with various endocrine disorders (including growth, puberty, thyroid, bone, vitamin d, calcium, and obesity), we can provide comprehensive support services usually only offered at larger children’s hospitals.

We offer full growth disorder workups with the ability to do Growth Hormone (GH) Stimulation Testing, ACTH stimulation testing, GnRH stimulation testing, and Leuprolide stimulation testing in our office. We also offer comprehensive diabetes care and nutrition counseling, including care for new onset diabetes patients (type 1 and type 2) that does not require initial hospitalization.

We are currently open to accepting new patients, with minimal wait times for new appointments.  We accept all major PPO insurances and Optum HMO patients. If you have any questions, please call our Specialty office at (626) 397-8323.


Cedric Ng, MD (pediatrics)


Anna Newby, RD, CDE