Oral Pathology & Biopsy in Maryland, Washington DC & Virginia
Medically reviewed by Dr. Sergio Calleja, DDS, MPH — Board-Certified Oral & Maxillofacial Surgeon · Last reviewed 2026-03-30
If you are looking for oral Pathology & Biopsy — oral and maxillofacial pathology — in Maryland, Washington DC, or Virginia, Dr. Sergio Calleja provides this care for patients across the DMV from two Southern Maryland offices. He is board-certified by the American Board of Oral and Maxillofacial Surgery, fellowship-trained in cleft and craniomaxillofacial surgery, and sees patients in English or Spanish.
This page covers the regional practicalities — where your care happens, how we coordinate with your providers around the DMV, and how insurance works — so you know exactly what to expect before you call.
Where Your Care Happens
Consultations, 3D imaging, and the procedure itself typically all happen at the practice's offices in Waldorf and California, Maryland — with local anesthesia, IV sedation, or general anesthesia available on-site, so most patients never need a hospital visit.
The Waldorf office sits about 25 miles from downtown Washington DC — typically 45 minutes via Branch Avenue (MD-5) — and serves Charles and Prince George's County and Northern Virginia. The California, Maryland office serves St. Mary's, Calvert, and the Patuxent River communities.
Patients Come to Us From
Patients travel to us for this care from across the region, including:
- Maryland: Waldorf, La Plata, Clinton, St. Charles, Lexington Park, Leonardtown, Annapolis, Upper Marlboro, Silver Spring, and the greater Baltimore area
- Washington DC: all quadrants — the Waldorf office is a straight run down Branch Avenue (MD-5) from the Beltway
- Virginia: Alexandria, Arlington, Woodbridge, Manassas, Fredericksburg, and Northern Virginia communities via the Harry Nice Bridge (US-301) or I-95
- Traveling from further away? See the out-of-state process on our Traveling Patients page.
Coordinated Care Across the Region
Most patients arrive through their general dentist, and your dentist stays part of the team: we coordinate records, imaging, and follow-up directly with dental practices across Maryland, DC, and Virginia, and return you for any restorative work with complete documentation.
Insurance
We will work with your insurance and check your benefits for your specific plan. Whether your coverage is dental, medical, or both, our team verifies your benefits before treatment and provides a clear written estimate — so you know exactly where you stand before anything is scheduled.
Frequently Asked Questions
Who performs oral Pathology & Biopsy in Maryland?
Oral Pathology & Biopsy is performed by oral & maxillofacial surgeons — specialists with four to six years of hospital-based surgical residency after dental school. Dr. Sergio Calleja is a board-certified, fellowship-trained oral & maxillofacial surgeon seeing patients at offices in Waldorf and California, Maryland.
How far are the offices from Washington DC?
The Waldorf office is about 25 miles from downtown Washington DC — typically a 45-minute drive via Branch Avenue (MD-5) or Suitland Parkway. Most DC and Northern Virginia patients find it an easy trip.
Where is oral Pathology & Biopsy performed — office or hospital?
Consultations, 3D imaging, and the procedure itself typically all happen at the practice's offices in Waldorf and California, Maryland — with local anesthesia, IV sedation, or general anesthesia available on-site, so most patients never need a hospital visit.
Can my dentist or specialist in Virginia or DC refer me to you?
Yes — we receive and coordinate referrals from providers across Maryland, DC, and Virginia, and we report back to your referring provider at every stage.
Do you work with my insurance?
We will work with your insurance and check your benefits for your specific plan. Whether your coverage is dental, medical, or both, our team verifies your benefits before treatment and provides a clear written estimate — so you know exactly where you stand before anything is scheduled.
Do you see patients from outside the DMV?
Yes — patients travel to us from across the United States and abroad. We offer virtual consultations for out-of-area patients and help coordinate travel and lodging; see our Traveling Patients page for the full process.
Have Questions About Oral Pathology & Biopsy?
Dr. Calleja evaluates every case personally at the Waldorf and California, MD offices — consultations in English or Spanish.
This page is general patient education, not personal medical advice. Every patient's anatomy and health history are different — treatment details, risks, and recovery vary case by case and are reviewed with you during your consultation. For emergencies, call 911.