Why a login page using password_verify doesn’t work? [duplicate]

The admin page should be accessed by entering the ‘admin’ NIC and password. The patient sites for other NICs should be accessible with their password.

Here is the patient(user) table:

id	NIC	Password	Name	Phone	Address
1	admin	1234	Ben	0118675456	Colombo
2	00236584V	abcd1	Ann	0114253963	Dehiwela

I used NIC as primary key in the table
here is my PHP code .

<?php
session_start();
$NIC="";
$password = "";
$error = "";
if($_SERVER['REQUEST_METHOD']=='POST')
{
    $NIC = $_POST['nic'];
    $password = $_POST['password'];
    if(empty($NIC)||empty($password))
    {
        $error = "Email and Password are required !";
    }
    else
    {
        include "database.php";
        $dbConnection = getDatabaseConnection();
        
        $statement = $dbConnection->prepare("SELECT id, NIC, Password, Name, Phone, Address FROM user WHERE NIC = ?");
        
        $statement->bind_param('s',$NIC);
        $statement->execute();
        $statement->bind_result($id, $nic, $stored_password, $Name, $Phone, $Address);
        if($statement->fetch())
        {
            if(password_verify($password,$stored_password))
            {
                if(strtolower($NIC)==="admin")
                {
                    $_SESSION["admin_id"] = $id;
                    $_SESSION["admin_username"] = $nic;                 
                    header("location: admin-dashboard.php");
                    exit;
                }
                else
                {
                    $_SESSION["id"]=$id;
                    $_SESSION["nic"]=$nic;
                    $_SESSION["Name"]=$Name;
                    $_SESSION["Password"]=$password;
                    $_SESSION["Phone"]=$Phone;
                    $_SESSION["Address"]=$Address; 
                    
                    header("location: patient-profile.php");
                    exit;
                }
            }
            else
            {
                $error="Email or Password invalid";
            }
        }
        else
        {
            $error="Email or Password invalid";
        }
        $statement->close();
    }
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Login / Signup - Wintan Hospital</title>
    <link rel="stylesheet" href="styles.css">
</head>
<body>
    <header>
        <img src="IMG/Logo.jpg" width="100px" height="100px" alt=""/><br>
        <h1>Wintan Hospital </h1>
    </header>

    <main>
        <section class="auth-section">
            <div class="login-form">
                <h2>Login</h2>
                <form action="patient-login.php" method="post">
                    <strong><?= htmlspecialchars($error) ?></strong>
                    <label for="username">Username/NIC:</label>
                    <input type="text" id="nic" name="nic" value="<?= htmlspecialchars($NIC) ?>">
                    <label for="password">Password:</label>
                    <input type="password" id="password" name="password">
                    <button type="submit">Login</button>
                    <a href="forgot-password.html">Forgot Password?</a>
                </form>
            </div>
        </section>
    </main>

    <footer>
        <p>&copy; 2024 Wintan Hospital. All rights reserved.</p>
    </footer>
</body>
</html>