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    Building on a Legacy of Exceptional Smiles!

    Philadelphia Orthodontists

    Formerly Roberts & de Marsche

    Philadelphia Orthodontists enters an exciting new chapter under the leadership of Dr. Daniel Markel, who is proud to carry forward a trusted legacy of exceptional orthodontic care in Center City. Building on the strong foundation established by Dr. William Roberts, Dr. Markel is committed to delivering the same high standard of personalized treatment that patients have come to expect. Together, this blend of experience and fresh perspective ensures every patient continues to receive attentive, modern care, whether exploring Invisalign or traditional braces, in a practice rooted in both history and innovation.

    Meet Dr. Daniel Markel

    Philadelphia Orthodontists

    “I believe the best results start with truly listening—because every smile has its own story.”

    Dr. Daniel Markel brings a fresh, modern perspective to orthodontics, blending advanced clinical training with a genuine passion for helping patients grow in confidence. Inspired by his background in coaching and competitive dance, he approaches every smile transformation with precision, care, and a focus on long-term results. A top graduate of Temple University Kornberg School of Dentistry and a specialist in Invisalign and clear aligner therapy, Dr. Markel is dedicated to delivering personalized, cutting-edge treatment. As a partner at Philadelphia Orthodontists, he is proud to continue a trusted legacy while creating meaningful connections with every patient he serves.

    Omicron Kappa Upsilon
    Temple University
    Villanova University
    ABO
    Dr. Daniel Markel

    What Our Patients Are Saying

    Nia Turner
    2 weeks ago
    I am very satisfied with my experience at Philadelphia Orthodontists and the overall appearance of my teeth following braces treatment. My smile is beautiful and reflects the quality of their work and level of expertise. Dr. Daniel Markel, Dr. William Roberts and their team provide excellent orthodontic care and are responsive to concerns. They accommodated me when I had emergent issues such as broken wires, and they patiently guided a stubborn tooth to turn around in the right position. The team is professional and personable. I generally have adjustments performed during my lunch break and in a timely manner. Dr. Dan Markel will make your teeth sparkle. Dr. Roberts' will make you smile.
    Cayla McCaughan
    4 weeks ago
    I had a fantastic experience with Dr. Roberts and team! Dr. Roberts is an experienced, knowledgeable orthodontist and I felt very confident in his care. Everyone in the office is welcoming, friendly, and accommodating. A special thank you to Judy, the orthodontic technician, for always being so kind and helpful. The entire process was smooth, and I’m thrilled with the results. My teeth are exactly as I hoped. Highly recommend!
    By far, this has been the best experience I’ve ever had with braces from start to finish. I started my journey as Dr. Roberts’ patient and was later transferred to Dr. Dan. That’s where the real magic happened! He saw even more ways to enhance my smile and took it from great to absolutely amazing. The entire team is incredible. Every visit, I’m welcomed with such positive energy. Everyone is genuinely kind, happy, and makes you feel like family. They always take the time to have great conversations, making every appointment enjoyable instead of stressful. If you’re thinking about getting braces for yourself or your children, this is truly the top-tier place to go. I couldn’t be happier with my results or my experience. They get a 100/100 from me, and I highly recommend them!
    Nick Johnson
    4 weeks ago
    Needed a retainer replacement and the whole process was painless. Staff was friendly, the turnaround was quick, and everything was handled without any hassle. Would definitely come back.
    Jada G
    2 months ago
    My experience at Philadelphia Orthodontists was incredible!! Dr. Dan is absolutely lovely and has wonderful “bedside” manor. Honestly, the entire team is great. Ny helped me several times and was very patient. If you’re thinking about getting braces as an adult DO IT!! I can’t wait to show off my PERFECT teeth at my wedding. Thank you sooooooo much Dr. Dan.
    Siera Hicks
    2 months ago
    I have been a patient here for over 10 years and I would still recommend them! They are excellent and Ive been told my teeth is my biggest flex. 10/10!
    Will Patzke
    2 months ago
    Great experience having orthodontic treatments through invisalign. Staff very friendly and helpful, docs attentive and thorough. Def recommend
    taliyah mcnish
    3 months ago
    I had a great experience throughout my orthodontic treatment. The staff was always friendly, professional, and helpful. My orthodontist took the time to explain everything and made me feel comfortable at every visit. I’m very happy with my results and would highly recommend this office to anyone considering orthodontic treatment
    Mary Loftus
    3 months ago
    I had a great experience getting Invisalign with Dr Dan and all the staff and dental hygienists at Philadelphia Orthodontists. I got a great result and am so happy with my smile and their personalized care and attention to detail.
    Jane Kotler
    3 months ago
    One year ago, I was referred to Dr. Roberts for Invisalign, and since then I’ve been a patient of both Dr. Roberts and Dr. Dan Markel. This practice is outstanding. Both orthodontists are knowledgeable, personable, and clearly committed to patient care. They take their time with each visit and truly prioritize achieving the best cosmetic outcome. I can’t imagine a better practice.
    Shweta Patel
    4 months ago
    I could not be happier with my Invisalign treatment at the hands of Dr. Roberts! The whole experience was smooth and seamless. Starting from the front office, the staff is very kind and professional. Leanna was very patient answering my questions, and when I needed to switch multiple appointments around. Judy is also awesome and knows her art. Dr. Roberts and Dr. Dan are both absolutely amazing. They know their skills, explain every step, and most importantly genuinely care about their patients. At times, the practice got busy, but I never felt rushed out. They took their time, paid attention to every question, every concern, and every nuance. Other than the first couple weeks of adjustment that is to be expected, I didn't feel anything in the rest of the treatment. I was afraid of more migraines as the teeth shift, but it was the opposite. My bite is perfect for the first time, way less headaches now, and a happy smile! Highly recommend this practice to anyone considering orthodontic treatment.
    Nanci Selig
    5 months ago
    This practice is amazing!! Everyone is so nice and Dr. Roberts really took his time and made sure my teeth were perfect. I would highly recommend as he is the best in the business !!
    This practice was really a great fit for me! I needed adult braces and was so pleased with the care and attention I got at this practice. I went to three other practices but landed on Dr.Roberts. I highly recommend!
    Mary Brehouse
    5 months ago
    The friendliest and most efficient and effective staff in a medical office. The work they perform is wonderful, my teeth look beautiful. Best decision to work with Dr. Roberts and his staff.
    Astan Kane
    5 months ago
    I loved the experience here. The staff was friendly from the front desk to Dr Markel ! He was 100% honest with me was not money hungry like other places and made me so comfortable with my wants and his plan. He communicated perfectly and made me feel comfortable with my decisions i made. I would recommend anyone who feels their teeth arent up to par. He does not steer you wrong and respects your wants.
    Chipp Biggs
    6 months ago
    The office of Dr. Roberts is fan-freakin-tastic! The staff is friendly, professional & polite! The office space is neat & clean. It was a great experience from start to finish as everyone was attentive to my needs w/ any questions or concerns I had during my process. I love everyone here! Special thanks to Judy, Lisa, Kathy & Dr Roberts
    Kathy Vickers
    6 months ago
    "I came to Roberts & DeMarsh for braces, and although my age and specific situation presented some challenges, I never felt intimidated. The entire staff was incredibly kind and made the whole process an excellent experience. I am so happy with the results and absolutely love my new smile! A huge thank you to the staff, Dr. Roberts, and especially to Judy, who even missed her lunch one day just to help me finish my treatment. I can’t recommend them enough!
    Changzhe Xu
    7 months ago
    Got Invisalign here, small office at a great location, very nice people, standard procedures, (almost) painless process but making a phone call would be easy to solve things!
    Angela Adams
    7 months ago
    I am so grateful I chose the Philadphia Orthodontist Team. They made me feel like family while doing a super job correcting my teeth. I wouldn’t go anywhere else & have referred a close friend who now raves about them.
    Mariah DuBose
    7 months ago
    The most exceptional service ever! Dr. Marsche and his team are well experienced, prompt, reliable and professional. They have you in and out, with a beautiful and clean office space that makes everything better (feels serene). Having started my Invisalign treatment before Covid, and it being interrupted due to Covid19 the team did an excellent job helping me to get back on track. Love how my teeth look now!

    Getting Started

    New orthodontic patients are always welcome! Dr. Markel works closely with general dentists and dental specialists to coordinate your care – and if you don’t have a dentist, we’re happy to connect you with one to support your healthiest, best smile.

    American Association of Orthodontists (AAO)
    American Dental Association (ADA)
    Diamond + Invisalign Provider
    Top Dentists

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