The answer seems to change depending on where a patient got their first dose.

Appointments for the second dose can be scheduled at the time of the first shot. There is no need to schedule refresher doses through the portal. “Follow the instructions you received with your first shot,” said OSDH Deputy Commissioner Keith Reed.

Appointments for the second dose can also be made through the state portal and users will be asked if they need the Pfizer or Moderna shot. Some clinics have had scheduling problems for second doses, Spohn said, so officials are working to ensure that these locations don’t just fill up with appointments for the first dose.

The Tulsa Health Department says, “You can take your second dose without an appt, provided you come at the same time as your first dose. Must bring your vaccination card. “Director Bruce Dart said those who received a Pfizer vaccine through the Tulsa Health Department should try to return to the same location 21 days after the main dose. Those who received Moderna should go back to the same location 28 days later.

In Wagoner County, appointments for the second dose cannot be made until a week before the patient’s booster shot.