Welcome Patients of Dr. Rohit Keshav!


General Dentistry & Dental Implant Provider


Nathan Christensen, DDS, brings more than a decade of experience in dentistry and endodontics to Ramona Family Dentistry in Ramona, California, serving patients throughout Los Angeles County.

Dr. Christensen earned his Doctor of Dental Surgery with high honors from the Herman Ostrow School of Dentistry of the University of Southern California. Since entering private practice, Dr. Christensen has dedicated countless hours to augmenting his professional skills, including the completion of an extensive continuum in endodontics at the University of California Los Angeles and a certificate in advanced comprehensive esthetics from McGann Postgraduate School of Dentistry in Aliso Viejo, California. Dr. Christensen also earned a certificate from the Zimmer Implant Institute and is a preferred provider for Invisalign®.

Professionally, Dr. Christensen is an advocate for biomimetic – or minimally invasive – dentistry. Whenever possible, he works to preserve his patients’ natural tooth structure, using safe and effective techniques. Dr. Christensen also knows that it isn’t always easy to visit the dentist. He works to provide a comfortable, welcoming experience for all of his patients and maintains a license to perform oral conscious sedation. Dr. Christensen is also a proud fellow of the Academy of General Dentistry.

When he isn’t working with patients or honing his professional skills, Dr. Christensen enjoys spending time with his wife of more than 10 years, his three daughters, and their dog. Dr. Christensen also enjoys being physically active and loves running. During the last few years, he’s completed several races, including a couple of marathons. Dr. Christensen also enjoys surfing, basketball, and soccer. He welcomes any family seeking comprehensive oral health care to Ramona Family Dentistry.


General and Cosmetic Dentist


Hemant Sachdeva, DDS, brings extensive experience in preventive dentistry and endodontics to Ramona Family Dentistry in Ramona, California, serving patients throughout Los Angeles County.

Dr. Sachdeva was born and raised in central California. He earned his undergraduate degree from UC Berkeley and obtained his Doctor of Dental Surgery from the Herman Ostrow School of Dentistry of the University of Southern California. At USC, doctor Sachdeva also earned the Thor Award for providing outstanding service to handicapped and disadvantaged patients.

Since entering private practice, Dr. Sachdeva has focused on the endodontic side of dentistry. He regularly attends lectures to augment his professional skills and to stay up-to-date with the latest endodontic techniques and treatments.

Outside of the office, Dr. Sachdeva loves using his dentistry skills to provide humanitarian service. During the course of his career, he’s traveled as far as Cambodia to provide dental service for those in need. He’s also worked with veteran and homeless populations throughout California to promote preventive oral health care and improved hygiene.

Dr. Sachdeva is fluent in English, Spanish, Punjabi, and Hindi. When he isn’t working with patients, Dr. Sachdeva enjoys hiking, camping, and playing sports such as tennis, racquetball, and golf. He welcomes any patient seeking comprehensive oral health care to Ramona Family Dentistry.

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Words from our patients

  • Yelp

    Ramona Family Dentistry has my endorsement 120%!

    Cynthia K.
  • Yelp

    They have done an amazing job on my pearly whites, but the staff is what makes me drive all the way to Ramona to still see them!

    Mandie L.
  • Yelp

    This office was really accommodating and got me in right away. I wish every office was like this one!

    Kevin J.


The goal of Nathan Christensen, DDS, Hemant Sachdeva, DDS, and the other dentists, endodontists, and support staff at Ramona Family Dentistry is to provide high-quality oral health care to men, women, and families living in and around Ramona, California.

Ramona Family Dentistry is the only dental practice in the area that has an oral surgeon and periodontist on staff, allowing the team to address the individual needs of their patients while treating even the most complex cases. The team also provides sedation dentistry, ensuring children and adults with dental anxiety can access the treatment they desperately need without feeling anxious or afraid. 

In addition, the team offers a full suite of general, preventive, and restorative dentistry services, including CEREC® same-day crowns, All-On-4 dental implants, children’s dentistry, dental bridges, crowns, traditional dental implants, emergency dentistry, veneers, teeth whitening, and oral surgery.  The team also offers wisdom teeth removal, root canals, periodontal treatment, and diagnosis and treatment of TMJ disorder. 

Patients can also access state-of-the-art diagnostic imaging technologies, including CT scanners as well as LANAP®=Laser Assisted Regeneration. 

The team at Ramona Family Dentistry approaches oral health problems using an integrative, holistic approach. Whenever possible, they use conservative, noninvasive methods of treatment to prevent tooth decay and gum disease, while improving their clients’ quality of life. 

Take charge of your oral health. Request an appointment at Ramona Family Dentistry today by calling the office or clicking the online booking tool. It’s the first step toward a happier, healthier smile.


It used to be that getting a crown, dental bridge and other dental restorations required at least two dental appointments spaced over several weeks.

Ramona Family Dentistry
425 10th Street, #B
Ramona, CA 92065
Phone: 760-208-1990
Fax: 760-465-5005
Office Hours

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