Marsha K Howerton Md Pc. 6465 S Yale Ave Ste 310, Tulsa, OK, 74136 . Average office wait time. Office cleanliness . Courteous staff . Scheduling flexibility . Howerton-Engles Marsha K Office. 1919 S Wheeling Ave Ste 300 . Tulsa, OK, 74104. INSURANCE PLANS ACCEPTED (30).