Long before the urgent care center explosion, The Doctor Is In opened its first location in Clinton, NJ in 1987. To serve the growing needs of Hunterdon and Warren Counties, two additional offices opened in Flemington and Phillipsburg, NJ.

Founded by Medical Director Randy S. Klein, MD, the practice provides a blended model of Family Medicine, Urgent Care and Occupational Medicine. Our broad scope of services, extended hours, walk-in availability and on-site diagnostic capabilities enable us to treat acute and chronic injuries and illnesses.

Our Board-Certified Physicians, Advanced Nurse Practitioners and Certified Physician Associates provide primary care to patients of all ages, participate in many insurance plans, schedule appointments at our patients’ convenience and manage chronic conditions.

At The Doctor Is In our mission is to treat every patient with compassion and respect and provide quality convenient medical care 365 days a year.

Forms for Patients

• Patient Registration Packet
• Sports Physical Form
• TDII Health Maintenance Form
• Notice of Privacy Practices
• Aviso de Prácticas de Privacidad (en Español)
• Registro de Pacientes (en Español)

The Doctor Is In is contracted with the following health insurance plans:

• Aetna (HMO*, POS, PPO, Medicare Advantage)
• AARP
• AmeriHealth (HMO*, PPO, Medicare Advantage) Excluding Value Network
• Beechstreet
• CIGNA CIGNA Excluding Medicare Advantage and Local Plus
• Consumer Health Network (CHN)
• Coventry/First Health (PPO Only)
• Horizon Blue Cross Blue Shield of New Jersey
• Horizon NJ Health (Not Accepting New Patients)
• Magnacare
• Medicare
• MultiPlan
• Oxford Health Plans
• PHCS
• Qualcare
• Railroad Medicare
• Tricare Excluding HMO Plans
• United Healthcare

*HMO Plans require that you select a Primary Care Provider (PCP). If The Doctor Is In is not your PCP, payment in full is required at the time of the visit.

Even though your plan may be listed here, it is not a guarantee of your coverage. If you have any questions regarding details and/or restrictions of your plan, please contact the member services phone number listed on your insurance card.

Please bring the following with you at every visit: insurance card, photo identification, and co-pay.

Some carriers limit the services we can perform in our office. If you require one of those services, you will be given the choice of going to an outside facility or waiving your insurance benefit, paying in full and having the service here.

The billing office at The Doctor Is In is here to assist you with any questions or concerns you may have about your account or a bill you received. The Billing Department can be reached at (908) 782-7700, ext. 3 Monday through Friday.

Payment can be made with cash, check, Visa, MasterCard or Discover.