This is to achieve the target of fully immunizing all 7.2 million adults living in the city with two shots, the department said.
As of last Sunday the city had more than 774,000 doses of AstraZeneca, Pfizer and Sinopharm vaccines left.
It expects to require around 472,000 doses for the first shot between Sept. 20 and Oct. 31 and 5.6 million doses for the second.
Vietnam allows the mixing of AstraZeneca and Pfizer vaccines if the receiver consents.
The city has administered 8.8 million doses, with more than 2.1 million people getting two shots.
The epicenter of the fourth wave since late April has had 348,220 cases and 13,628 deaths.