Patrick W. Medlock, CPA is certified public accountant in Diamond Bar, California who specializes in personal & commercial tax managment, business accounting, payroll, and consulting services. atrick Medlock has been a CPA for 25 years and has had his own firm in the Walnut area since 1990. He has wide experience with a variety of industries, business entities and company profiles. While maintaining the personal approach and care with his clients, he provides the assistance to help the client with their needs. Patrick emphasizes training of client personnel and setting up accounting systems to work within the clients comfort. Call Today For A Free Consultation!