from bs4 import BeautifulSoup
import requests
site_link = "https://tyumen.zoon.ru/medical/gospital_mat_i_ditya/"
response = requests.get(site_link).text
soup = BeautifulSoup(response, 'lxml')
block_main = soup.find("div", class_ = "grid-container bg-gray service-page service-page-premium js-phone-holder")
second_block = block_main.find("div", class_ = "service-website-value")
last_block = second_block.find("a").get("href")
print(last_block)