A few words About Our Story

Let us introduce ourselves

Coastal Oak Insurance is an Independent Insurance Agency based in Southern California, with the breadth of knowledge and capabilities to place coverage from coast to coast. Whether your insurance needs are personal or business, large or small, we at Coastal Oak will make sure you are never just another number. We set ourselves apart through our streamlined quoting system, extensive carrier relationships and quality service focus. Our Insurance Specialist are here to help you navigate through the different coverages, claims handling procedures and financing options to assure you have the best coverage for the lowest price.

Alex Robertson


Unlike many individuals who “fall into insurance” Alex chose this path when he double majored in Risk Management & Insurance and Finance & Banking at Appalachian State University in Boone, NC. With over a decade in the insurance industry, ranging from the retail agency side to Excess and Surplus Lines Brokerage, Alex will tailor a risk management plan to protect you, your family and your business.

When Alex is not assisting his clients, he is enjoying family time with his wife and their newborn son; along with two lovable dogs and a crazy cat.

Oscar Urrutia

Account Executive

Oscar has been working in the insurance industry for going on 5 years now. Oscar’s background is service, making sure each client feels like family. With his knowledge and background in customer service, you know you will be well taken care of here at Coastal Oak.

When Oscar is not working with clients, he enjoys practicing martial arts, riding motocross, and watching sports with friends and family.

Mariska Rowell-Lehman


Mariska was born in Berkeley, CA and raised in both the San Francisco Bay Area and the Netherlands. Being half Dutch and half American, Mariska chose to pursue her college education abroad and received her Bachelors Degree in International Law at University College Utrecht, followed by her Masters Degree in International Business Law and Globalization from Utrecht University, both in the Netherlands. Mariska has a vast business background, ranging from setting up microfinance banks in developing countries to running a call center in the Bay Area.

Mariska’s career in insurance started as a result of the wildfires in California. With her uncle and her mother losing everything in two of the most catastrophic wildfires in California history, Mariska witnessed first hand just how important it is to make sure everyone has great insurance coverage. Thus, she entered the insurance industry as a personal lines producer with a mission to make sure that her clients are adequately insured in the event of a disaster.

Currently, Mariska lives in the San Francisco Bay Area with her husband Gregg and Pablo the cat. She also has two fantastic step kids, Madeline and Luke. When she is not helping others with their insurance needs, Mariska loves travelling, food, and wine. She is also an avid sports fan, especially the 49ers, and enjoys teaching fitness classes twice a week.