MARK V. ALEXANDER M.D. – NPI #1386733970
Otolaryngology
An otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for patients with diseases and disorders that affect the ears, nose, throat, the respiratory and upper alimentary systems and related structures of the head and neck. An otolaryngologist diagnoses and provides medical and/or surgical therapy or prevention of diseases, allergies, neoplasms, deformities, disorders and/or injuries of the ears, nose, sinuses, throat, respiratory and upper alimentary systems, face, jaws and the other head and neck systems. Head and neck oncology, facial plastic and reconstructive surgery and the treatment of disorders of hearing and voice are fundamental areas of expertise.
MARK ALEXANDER is an otolaryngologist located in WASHINGTON, DC. NPPES has assigned the NPI number 1386733970 to MARK ALEXANDER on October 12, 2006. It is a Type-1 NPI, indicating this NPI number is associated with an individual. With multiple taxonomy codes selected, the primary taxonomy selected by this provider is 207Y00000X from the Health Care Provider Taxonomy code set, which is classified as Otolaryngology.
The NPI profile was last updated on Sep 11, 2025. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for MARK ALEXANDER below.
NPI Profile for
MARK V. ALEXANDER
(more than 19 years ago)
50 IRVING STREET N.W.
WASHINGTON, DC 20422-0001 Phone: (202) 745-8295 Fax: (202) 745-8293
A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.
| Taxonomy Classification / Specialization | State | License |
|---|---|---|
| 207Y00000X - Otolaryngology (Primary) |
DC | MD8523 |
| 207YX0007X - Otolaryngology / Plastic Surgery within the Head & Neck |
DC | MD8523 |
The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.