Commas in Special Cases

Use a comma between the day and the year in a date. Use a comma after the year in a date when it appears in the middle of a sentence, as shows in this example:

My father was born on July 16, 1952, in St. Louis.

Use commas to separate street addresses, cities, states, and countries. Use a comma after a specific address or geographical location when it appears in the middle of a sentence, as shown in the following example:

Miami University is in Oxford, Ohio, even though it sounds as if it should be in Florida.

Use commas to separate proper names from titles or degrees:

Juanita Rendon, Ph.D., has been elected to replace Bill Carpenter, Personnel Director.

Finally, use commas to separate a direct quotation from a speaker tag, as shown in these examples:

The officer shouted, “You’re under arrest!”
“I’m innocent,” replied the thief.

Which sentence is correct? We will be arriving in Santa Monica, California on Tuesday May 15. Felicity Dennis, Executive Cruise Director, introduced us to Madeline Renault, M.D., the ship’s doctor.