This word is acceptable for play in the UK dictionary that is being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. One who is versed in gastrology, or skilled in catering to the demands of the stomach.

n. A physician who devotes special attention to the diagnosis and treatment of diseases of the stomach.

"Another peeve - She's, God help, trying to lose weight so she's seeing a special diet-doctor on top of her neurologist, gastrologist, pediatrician, psychiatrist and radiologist."