Walk-in COVID-19 vaccination information

vaccine clinic

September 22, 2021

Important! As of Wednesday, Sept. 22, St. Peter's Health is not authorized to give third doses of the COVID-19 vaccine to anyone except those included in the eligible immunocompromised populations listed in the Third Dose Information section below. St. Peter's is closely tracking the FDA and CDC approval decisions for third doses for other to-be-determined populations. We will share more information as it becomes available. 

Protect yourself, your family and our community

Get vaccinated today! St. Peter’s is offering first and second COVID-19 vaccines to everyone 12 years and older. Second dose appointments for the Pfizer vaccine are available to those who have received a first dose at a mobile clinic or other location. Third doses are available for a select groups immunocompromised populations, see below for eligibility information and instructions.

To learn more about community COVID-19 vaccine distribution plans, additional vaccination opportunities and more, please visit the Lewis and Clark County vaccine distribution page. For more information on the COVID-19 vaccine visit the Centers for Disease Control COVID-19 Vaccines page

Lewis & Clark County Vaccine Distribution Page

Walk-in vaccine appointments

If you are 12 years or older, you are eligible for a COVID-19 vaccine at St. Peter's. No appointment is necessary, walk-ins are welcome at:  

  • St. Peter’s Health Medical Group - Broadway Clinic, 2550 Broadway St., from 8:30 a.m. to 12:00 p.m. and 1:00 p.m. to 4:30 p.m. Monday-Friday. Please enter through the main entrance. 
  • St. Peter's Health Medical Group - Townsend Clinic, 515 S. Front St., from 8 a.m. to 5 p.m. Monday-Friday.
  • If you are an established patient currently receiving care from a St. Peter's primary care provider you may walk-in to your provider's clinic where you seek care between 8 a.m. and 5 p.m. Monday-Friday to receive a COVID-19 vaccine. Walk-in sites for primary care patients are located at the Broadway, North and Townsend clinics.

IMPORTANT! Vaccine information


Please bring: 

  • Photo ID 

  • Your insurance card

  • Your CDC vaccination card if it is your second dose 

Please note: 

  • Anyone aged 12-17 must be accompanied by a parent or guardian. Age must be verified by parent or guardian at time of appointment. Age documentation is not required.

  • Second dose appointments for those who received the Pfizer vaccine at a mobile clinic or other location must be made at minimum three weeks (21 days) after the first dose of Pfizer. First dose dates will be verified via CDC vaccination cards at the time of the second dose appointment.

  • All COVID-19 precautions will be enforced, including masking and physical distancing

  • Patients must stay for 15-30 minutes after vaccination for observation

  • We ask that you wear loose fitting clothing so it is easy for our team to give you the shot

  • If you are receiving your first dose, we will schedule your second dose appointment at the time of your first appointment

  • Pfizer (12+) is available. Moderna (18+) is available for second doses and for those who are currently eligible to receive a third dose (see below). We currently do not have any Johnson & Johnson available and we do not anticipate receiving additional supply soon. 

  • Please do not walk-in for a COVID-19 vaccination if you have COVID-19 OR are experiencing any COVID-19 symptoms.

Third dose information 

Third doses of the Moderna and Pfizer COVID-19 vaccines are now available at St. Peter's for certain immunocompromised populations. You are eligible if you have:

  • Receive active cancer treatment for tumors or cancers of the blood
  • Received an organ transplant and are taking medicine to suppress the immune system
  • Received a stem cell transplant within the last 2 years or are taking medicine to suppress the immune system
  • Have moderate or severe primary immunodeficiency (such as DiGeorge syndrome, Wiskott-Aldrich syndrome)
  • Have advanced or untreated HIV infection
  • Receive active treatment with high-dose corticosteroids or other drugs that may suppress your immune response

If you are eligible, visit your St. Peter's primary care office during regular hours; no appointment necessary. Before your visit, please note:  

  • We are not requiring documentation of your immunocompromised status. Instead, you just need to attest that you have an eligible condition. 
  • You must get the same of vaccine that you received for their first two doses (i.e. Moderna or Pfizer). No mixing and matching.
  •  At this time we are not authorized to give people additional doses of Johnson & Johnson OR give people who received Johnson & Johnson initially a booster dose. 
  •  You must be at least 28 days out from your last dose. 
  • Please remember to bring your COVID-19 vaccination card.

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