Can you get a closer picture of the leaves and flowers? And tell us where it is growing? Initial impression is 'no' but without better photos it's impossible to be sure.

If it were in my neck of the woods, I'd suggest Kousa dogwood/Cornus kousa, based on flower shape, their concurrance with full leaves, and what seems to be opposite branching, but I don't know whether they grow in CA if that is where it is.

Fuzzy, out of focus, too far away. And tell us WHEN this pic was taken.

I'm guessing Kousa Dogwood also.

No, it looks like cornus kousa.

Cornus nuttallii is a native to the western Sierras where this picture was taken, however, I believe this tree to be a C. kousa. I have about 50 of them ranging from seedlings to 25 footers. Cornus nuttallii wouldn't be comfortable in an irrigated lawn.

Photo just isn't clear or close enough to be sure.

Per the OP above, tree is in NE Ohio. Agree that the photo isn't clear enough to be sure, but could those be paniculate flowers?