Product Schema With AggregateRating Reviews (for stars to appear in SERP)

<script type="application/ld+json">
  {
    "@context": "http://schema.org",
    "@type": "Product",
    "name": "Sentinel Primary Care",
    "description": "Sentinel Primary Care is a general internal medicine practice where we provide primary care for individuals 18 years old and older. We opened our doors in 2017 to offer Triangle residents top-notch primary care services in an attentive, membership-model setting. At Sentinel we get to know each person individually to give better primary care.",
    "image": "https://sentinelprimarycare.com/wp-content/uploads/2018/09/SENTINEL-logo.png",
    "itemCondition": "https://schema.org/NewCondition",
    "brand": { "@type": "Brand", "name": "Sentinel Primary Care" },
    "aggregateRating": { "itemReviewed": "Sentinel Primary Care", "worstRating": "1", "bestRating": "5", "ratingValue": "5", "reviewCount": "3" },
    "review": [
      {
        "reviewRating": { "ratingValue": "5", "bestRating": "5", "worstRating": "1" },
        "reviewBody": "Dr. O'Connell really spends a lot of time with his patients and listens to their needs. Because he is a concierge doctor he has the time and capability to interact with his patients by numerous means. So issues that might require an office visit with other physicians may be resolved over the phone or with e-mail. Overall, I am pleased with my choice of using Sentinel Primary Care.",
        "author": { "@type": "Person", "givenName": "Cynthia", "familyName": "Jonas" }
      },
      {
        "reviewRating": { "ratingValue": "5", "bestRating": "5", "worstRating": "1" },
        "reviewBody": "It was a great experience and I felt very comfortable with Dr O'Connel and his staff.",
        "author": { "@type": "Person", "givenName": "Kelly", "familyName": "Mullins" }
      },
      {
        "reviewRating": { "ratingValue": "5", "bestRating": "5", "worstRating": "1" },
        "reviewBody": "I came back because of the care I received from Dr O'Connell. He is very patient and helpful to my situation.",
        "author": { "@type": "Person", "givenName": "Desi", "familyName": "L" }
      }
    ]
  }
</script>