NHHC office is open Monday through Friday, except for certain holidays. Our office hours are 8:30 am to 5:00 pm. Hours may vary slightly depending on the doctor’s inpatient schedule. Contact us for more specific information. During normal business hours, phone calls and messages are returned in a timely manner. All calls will be returned the same day. A NHHC physician or nurse practitioner is available to respond to your emergency medical needs 24 hours a day, seven days a week. If you need to speak with someone after hours, call our office and the physician or nurse practitioner on call will respond to your needs.