Woodall was the son of Richard Woodall of
Warwick, and was apprenticed around the age of 16 or 17 to a London
barber surgeon. He did not finish his apprenticeship, but gained experience from the age of nineteen in 1589 as a surgeon with
Lord Willoughby's regiment on its expedition to support the Protestant
Henry IV of France and King of Navarre in his campaign against the
Catholic League of Normandy. He returned in 1590. Woodall is known to have then lived and worked as a surgeon in Polonia (Poland) and
Stade, a
Hanseatic port near
Hamburg. While there, he was occasionally employed as a German interpreter by visiting English ambassadors. In 1599, he was admitted to the
Company of Barbers and Surgeons of London as a freeman, but continued to live mainly in Holland until 1603, when he took up residence in Wood Street, London. He was able to offer treatment to victims of the
bubonic plague epidemic. At unspecified times in his life, he contracted plague and survived, writing of this,
"...for I had it twice, namely at two severall Plague times in my Groyne." In 1604,
James I of England sent an embassy, led by
Sir Thomas Smith, Governor of the East India Company, to Poland and possibly to Russia. Woodall was included for his knowledge of the region and command of the languages. John Woodall also gave
scurvy "special attention", as it was a common disease amongst English immigrants and seafarers. The association with Smith was fruitful for Woodall, for in 1612, Sir Thomas appointed Woodall to serve as Surgeon General to the East India Company. His duties were described as follows: :''"The Said Chiurgion and the Deputy shall have a place of lodging in the Yard, where one of them shall give Attendance every working day from morning until night, to cure any person or persons who may be hurt in the Service of this Company and the like in all their Ships, riding at Anchor at Deptford and Blackwell, and at Erith, where he shall also keepe a Deputy with his chest furnished, to remaine there continually until all the said ships have sayled and appointing fit and able Surgeons and Surgeon's Mates for their ships and services, as also the fitting and furnishing of their Chests with medicines and other appurtenances thereto."'' Woodall's career then progressed rapidly with election as a surgeon at
St. Bartholomew's Hospital in 1616 where he was a colleague of Sir
William Harvey. He was promoted to examiner in the Company of Barbers and Surgeons in 1626, to warden in 1627 and then master in 1633. He suffered a setback, however, in 1625, when he served a writ on
Sir Thomas Merry, a servant of the King who owed Woodall money. For his effrontery to royal privilege, the
Lord Steward had Woodall imprisoned. He was briefly released to supervise surgeon's chests for the next fleet at the request of the East India Company, but was then jailed again, and only freed after issuing a contrite apology. In 1626, the
Privy Council decided to pay the Company of Barbers and Surgeons fixed allowances to furnish medical chests for both the army and navy, and Woodall was appointed to supervise this scheme in addition to his long-standing similar commitment to the East India Company. He was eventually dismissed by the East India Company in 1635 for financial reasons, but retained a monopoly on supplying the company's medical chests until he died in 1643, aged 73. ==''The Surgeon's Mate''==