The Massen Medical Team

Arkady Massen, M.D.

Family Medicine

Dr. Arkady Massen graduated from medical school in his native Ukraine in 1975.  After practicing medicine for 15 years, Dr. Massen relocated to California where he completed his residency at the UCSF Fresno campus in 1993.


He established his private practice in the Bay Area in 1994, while also conducting clinical research work focusing on hypertension, post-herpetic neuralgia, diabetes and diabetic peripheral neuropathy. Dr. Massen’s hospital affiliation is with Eden Medical Center in Castro Valley and San Leandro.


Dr. Massen lives with his family in Castro Valley.  He is an active jogger, swimmer, skier and spends his vacations traveling around the world.

Tiffany Chan, MSN, FNP-c, RN, PHN

AANP Board Certified Family Nurse Practitioner

Tiffany is a Family Nurse Practitioner (FNP) at Massen Medical. While completing her Bachelor's degree at UC Berkeley in Molecular Cell Biology, she decided to pursue a career as an NP. She obtained her MSN at Samuel Merritt University, where she obtained her RN and FNP licenses. Prior to working at Massen Medical, she practiced as an FNP for seven years at the Davis Street Primary Clinic, the Samuel Merritt University Health Clinic, and a private practice in Oakland. 

Tiffany’s heart has always been in family medicine because she enjoys treating entire families and the patient as a whole. She loves what she does and can’t see herself in any other field. Tiffany loves people and finds great satisfaction in making a difference in the lives of others.  She enjoys partnering with her patients so they can be empowered to make healthy educated choices and achieve their goals.

When Tiffany is not at work, she loves to spend time with family, travel, teach, do arts and crafts, explore new food through Yelp, and serve the community through local church outreaches.

Chrystal Jurado, MSN, AGPCNP-BC

ANCC Board Certified Nurse Practitioner

Chrystal Jurado is a Nurse Practitioner at Massen Medical. At the University of California, San Diego (UCSD), she received her initial bachelor's degree in Public Health, but ultimately decided to pursue a career in nursing. She moved to Philadelphia to obtain her BSN and then went on to obtain her MSN from the University of Pennsylvania (UPENN). Prior to working as an NP, she worked as an RN at an LTACH, Kindred Hospital Philadelphia. Chrystal has always believed in preventive healthcare and that is why she loves primary care and working at Massen Medical. 

Our Care Support Team:



Lili - 
Medical Biller/

office mANAGER

gAbi -
Medical Assistant


Medical Records, adminISTRATIVE assistant

patient services coordinator

medical administrative assistant