Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Aloysius C Pereira, MD

Individual provider Hematology & Oncology Physician · NPI 1417023698

Dr. Aloysius C Pereira, MD is a Hematology & Oncology Physician in Mc Lean, Virginia. Licensed in District of Columbia, Maryland and Virginia. Registered with an NPI since 2006.

Licensed in
DC, MD, VA
In the registry since
2006
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

8008 Westpark Dr
Mc Lean, VA 22102-3109
Phone: (703) 287-6700
Fax: (703) 287-6701
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 0101057022 (VA)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence D0052967 (MD)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence MD30808 (DC)

Record details

NPI number1417023698
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 28, 2006
Last updated in NPPESMay 31, 2021
Certification dateMay 31, 2021

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients22
Services billed 669 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.