Get Directions to Polkinghorne & Sereno: Polkinghorne Mark L CPA Get directions From * Start typing the address, then select from the list of suggested addresses. The route will be routed automatically To Polkinghorne & Sereno: Polkinghorne Mark L CPA 1300 G Street, Modesto, CA 95354 +1 209-521-5555 View details Click to load map