Drs. Lasher and Harriman at Dental One Associates of Waldorf
3500 Old Washington Road, Suite 301, Waldorf, MD 20602

Welcome to Drs. Lasher and Harriman at Dental One Associates of Waldorf

At Drs. Lasher and Harriman at Dental One Associates of Waldorf we offer quality, convenient dental care for the whole family. Located at 3500 Old Washington Road, Suite 301, Waldorf, MD, 20602, we provide many dental services including dental hygiene, crowns, dentures, and various cosmetic procedures among many other services. We accept most insurance plans and offer payment options to fit any budget.

Learn more about us!
Request an Appointment

Proper dental care is important at all ages. Good dental health requires that you take care of your teeth daily and have regular dental check ups. It is recommended that you receive regular professional dental check-up and cleaning.

Request an Appointment!
Your Smile
  • Cosmetic dentistry
  • Teeth whitening

Replace missing teeth.

Restore your


Office Hours
Mon. – 9:00 AM - 5:00 PM
Tue. – 9:00 AM - 6:00 PM
Wed. – 8:00 AM - 6:00 PM
Thu. – 8:00 AM - 5:00 PM
Fri. – 8:00 AM - 2:00 PM
Sat. – 8:30 AM - 2:00 PM
Sun. – Closed

1 Saturday per month

Phone: (301) 861-0665
Fax: (301) 843-4070
Dental Emergency?
For medical emergencies, please call 911
Teeth Whitening

Regain your confidence and look your best with any one of a variety of teeth whitening options.

20% Off
Braces Only
$50 off
treatment of $250
or more.*
Free Consult
and $100 Off
Cosmetic Treatment

Welcome to Drs. Lasher and Harriman at Dental One Associates of Waldorf, Your Experienced Family Dentists

For 39 years, our practice has provided high-quality dental care to families in the community. Our experienced Waldorf dentists treat adults and children, beginning at the age of two. This allows us to become your family dental center and establish lasting relationships that lead to a lifetime of dental health. Our convenient local dentist office is located at 3500 Old Washington Road, Suite 301, Waldorf, MD 20602 in the Cambridge Professional Center. From the I-95 Beltway, take Branch Avenue, exit 7A, toward Waldorf. Head south for approximately 20 miles, then turn left onto Leonardtown Road South. Turn right at the first stoplight, onto Old Washington Road South. Travel approximately half a mile, and you’ll find our office on the left. If you prefer, public transportation is nearby. For your family’s convenience, we’re open on Mondays from 9:00 a.m. to 5:00 p.m., on Tuesdays from 9:00 a.m. to 6:00 p.m., on Wednesdays from 8:00 a.m. to 6:00 p.m., on Thursdays from 8:00 a.m. to 5:00 p.m., on Fridays from 8:00 a.m. to 2:00 p.m., and on Saturdays from 8:30 a.m. to 2:00 p.m. We offer these hours to help you schedule dental care around your work, school, and personal obligations.

We extend our commitment to helping our patients by supporting the entire Waldorf community. We’re proud to be in involved in Mission of Mercy and the Make-A-Wish Foundation. We strive to give back to the wonderful community that has given years of support to Drs. Lasher and Harriman at Dental One Associates of Waldorf.

Call us today at (301) 861-0665 or request an appointment online.

The Affordable Family Dental Care You Can Trust

Our Waldorf dentists and staff enjoy helping adults and children make the most of their smiles. Along with our highly skilled general dentists, we have an in-house periodontist and orthodontist who can provide the specialized treatments that your family needs, as well as sedation dentistry for patients with dental anxiety.

Our general dentistry services include dental check-ups, professional cleanings, dental sealants, fillings, extractions, root canals, crowns, bridges, dentures, and dental implants. We offer many cosmetic dentistry procedures such as bonding, cosmetic fillings porcelain veneers, and both in-office and at-home teeth whitening including Smile Perfected™ 20-Minute Whitening. Our resident periodontist treats all cases of gum disease, while our on-site orthodontist offers an array of straightening and alignment options, including Invisalign® invisible braces. For patients who have anxiety about having dental procedures or who fear going to the dentist, we offer sedation dentistry for complete relaxation during treatment. We also strive to make children feel comfortable by rewarding them with goodie bags, balloons, and stickers at the end of their appointments. We simply do everything we can to make each of our patients smile.

We Ease the Cost of Dental Care

Your family’s oral health is priceless, so our dentists in Waldorf make dental care affordable and accessible to all. We have special financing options to help you budget payments, and accept many dental insurance plans and the DentRite® discount dental plan. In addition, special cost savings are available year-round on popular dental services. We’re happy to provide more information on any of our convenient payment methods.

Call us at (301) 861-0665 today to schedule your appointment or request an appointment online.

Our Services

We are proud to offer a variety of dental services to meet the needs of all ages and dental conditions.

  • General Dentistry

    Great oral health can benefit your entire body.

  • Cosmetic Dentistry

    If you’re dissatisfied with your teeth because they are yellow, crooked, gapped, or chipped, cosmetic dentistry may be just what you need.

  • Orthodontics

    Orthodontics involves the use of devices – most commonly braces – to move teeth or adjust underlying bone.

  • Periodontics

    Periodontics is the prevention, diagnosis and treatment of diseases affecting the gums.

  • Sedation Dentistry

    Sedation is a necessary step in a variety of dental procedures, ranging from tooth extraction to advanced root canals, but some patients may require sedation dentistry to make it through a standard dental appointment.

Meet Our Dental Staff

Meet the Team

Karen Harriman, DDS

General Dentist

Dr. Harriman has been practicing dentistry in Waldorf, Maryland for over 15 […]

Michael Lasher, DDS

General Dentist

Dr. Lasher received a Bachelor of Science degree from the University of […]

Dorie Eger, DDS, MS


Dr. Dorie Eger is an Orthodontist offering braces to our patients. She […]

All around good experience
William E.
The office staff members were very pleasant, and sensitive to my needs. Everyone was so professional and friendly. I appreciate how my appointment was set according to my schedule. Dr. Berry was very comforting, and Pierre made me feel like family.
Leslie S.
Awesome staff
Barbra J.
Friendly, great work and ensured my comfort the entire visit.
Donieshia T.
Staff attentiveness
Theresa D.
This is the best office I have ever been to. Been going to Dr. LAsher for 25 yrs.
Melanie S.
This dental group is A1. The staff are very professional
Money W.
Always having a great experience here.
Demetria H.
I’ve been going to Dental One all of my life. Donna, my hygienist, is the absolute best at her job. My teeth feel great after a check-up! She is extremely thorough and detailed, and most importantly, gentle. I love her!!
Jordan A.
All of the staff is always so pleasant and takes good care of me.
Sandra H.
The staff. Donna Ash and Dr. Lasher are the best. Front desk staff are always pleasant and efficient.
Patrick M.
Very good experience overall.
Bryn J.
I have been with Robin and Dr. Lasher forever. They are awesome. All of the team is great.
Mary R.
Overall excellence in all services
Michael G.
Donna is wonderful, and Dr. Lasher a trusted friendly professional
Teresa W.
Dr. Lasher is the best dentist! The dental assistant and front desk person were great as well!
Lauren M.
I found Dr. Dwight Berry and his assistant very professional, and quite attentive to my welfare and concerns. The atmosphere they set makes me feel so comfortable, I am no longer anxious to visit the dentist ( this particular dentist) and look forward to future visits and treatment.
Ida H.
DONNA is the greatest !!!!! She always greets me with a smile, talks me through the entire procedure and as a patient for 35 years there, I have never felt any pain during any of my office visits. Dr. Mike is a great guy too
Eric D.
Quality care and friendly people.
Louis R.
I’ve been getting my dental care there for a long time.
Mark H.
We Accept Most Insurance Plans!
Learn More

We accept most insurance plans and will be happy to help you understand the coverage that you have. We will do our best to see that you receive your maximum insurance benefits for all covered services.

No Insurance? No Worries! See our discounts and offers here

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For appointments, call us at: (301) 861-0665 or
Request an Appointment
For appointments, call: (301) 861-0665
Office Hours
  • Monday 9:00 AM - 5:00 PM
  • Tuesday 9:00 AM - 6:00 PM
  • Wednesday 8:00 AM - 6:00 PM
  • Thursday 8:00 AM - 5:00 PM
  • Friday 8:00 AM - 2:00 PM
  • Saturday 8:30 AM - 2:00 PM
  • Sunday Closed
Get in touch:
  • Phone: (301) 861-0665
Our Location