Our office re-opened on June 1. Please read our safety measures regarding COVID-19 here.

Patient Information


A Periodontist is a dentist who specializes in the prevention, diagnosis and treatment of periodontal disease and in the placement of dental implants. In addition, they can perform cosmetic periodontal procedures to help you achieve the smile you desire.

Your dentist and Dr. Chang work together as a team to provide you with the best possible care. They will combine their experience to formulate the best treatment plan for you while keeping each other informed about your progress. When you have completed your treatment with Dr. Chang, he will refer you back to your general dentist but may also see you periodically for follow-up care and periodic maintenance treatment.

Please remember that the most important member of the treatment team is you. Your interest, participation and commitment are essential to the success of your treatment.

Your First Visit

Please email us at rockvilleperio@gmail.com the following items three days before your appointment. We may need to reschedule your appointment if these forms are not received in time.

  1. Patient Forms
    Rockville Perio Medical History
  2. Referral Slip and any X-rays (see below)
    Please scan or take a photo and email them to us.
  3. Dental Insurance Card
    Please scan or take a photo of your card and email it to us.

What to Expect

Your initial appointment typically includes an evaluation, then a detailed consultation explaining your diagnosis and treatment options. We want to educate our patients about their health and what to expect. The more you know, the better equipped you are to make wise decisions about your health care. The more you know about our daily procedures and policies, the more comfortable you will feel.

Usually treatment is provided at your next appointment, but occasionally treatment can be done the same day as the consultation.


If your dentist has taken recent x-rays (within 6-months), you may request that they forward them to our office. If additional radiographs are necessary, they can be taken at our facility. Our office utilizes state-of-the-art digital technology.

Financial Policy

For your convenience we accept Visa, MasterCard, and Discover. We deliver the finest care at the most reasonable cost to our patients. Payment is due at the time service is rendered unless other arrangements have been made in advance. If you have questions regarding your account, please contact us at 301-881-4867. Many times, a simple telephone call will clear any misunderstandings.

Please remember you are fully responsible for all fees charged by this office regardless of your insurance coverage. As a courtesy, our Patient Coordinator will verify dental insurance eligibility during your initial visit. However, all insurance companies do not guarantee the information provided to us over the phone.


We make every effort to provide you with the finest care and the most convenient financial options. To accomplish this, we work hand-in-hand with you to maximize your insurance reimbursement for covered procedures. We happily assist you in filing with your insurance company. Most insurance companies will respond within four to six weeks. If you have any problems or questions, please ask our staff. They can be reached by phone at 301-881-4867.

Please bring your insurance card and/or information with you to the consultation so that we can expedite reimbursement.

We are in-network with several insurance companies, which are below. If your insurance company is not listed, we will still submit a claim on your behalf to the insurance company, and they will reimburse you directly.

Initial Visit Forms

If this will be your first visit (or it has been a while), please complete the form below and email it back to us at rockvilleperio@gmail.com.

Rockville Perio Medical History


Post-Surgical Care Forms

Just in case the instructions were misplaced

Post Operative Instructions for Periodontal Surgery

Post Operative Instructions for Grafts