Dr. Omar K Mahmassani, DDS
Dr. Omar K Mahmassani, DDS is a Dentist in Frederick, Maryland. Graduated from Georgetown University School of Medicine in 1989, 37 years ago. Practices as a sole proprietor. Licensed in Maryland.
- Years since qualifying
- 37
- Trained at
- Georgetown University School of Medicine
- Licensed in
- MD
- In the registry since
- 2006
- Specialties on file
- 2
What do these letters mean?
- DDS — Doctor of Dental Surgery
- A dentist. DDS and DMD are the same qualification — universities choose which title to award.
Practice location Address checks out
5910 Frederick Crossing Ln Ste 101Frederick, MD 21704-5141
Phone: (301) 662-4422
Fax: (301) 965-8360
Show map & directions
Directions in Google Maps · Apple Maps · OpenStreetMap
Pin is approximate — placed at the ZIP-code centre, not the exact door.
Specialties & licences
| Dentist (primary) | Taxonomy 122300000X · Licence 10913 (MD) |
|---|---|
| Customized Equipment (DME) | Taxonomy 332BC3200X · Licence 10913 (MD) |
Record details
| NPI number | 1497781850 |
|---|---|
| Entity type | Individual (Type 1) |
| Gender | Male |
| Credentials | DDS |
| Sole proprietor | Yes |
| NPI enumerated | June 25, 2006 |
| Last updated in NPPES | May 12, 2026 |
| Certification date | May 12, 2026 |
| Mailing address | 5910 Frederick Crossing Ln, Suite 101, Frederick, MD 21704-5112 |
Medicare enrollment
| Medicare specialty | DENTIST |
|---|---|
| Medical school | GEORGETOWN UNIVERSITY SCHOOL OF MEDICINE |
| Graduated | 1989 (37 years in practice) |
| Accepts Medicare assignment | Not indicated |
| Practice locations | 5 on file with Medicare |