DR. ALOYSIUS C PEREIRA MD
NPI 1417023698
Internal Medicine - Hematology & Oncology in Mc Lean, VA

Q: What is Aloysius Pereira's NPI number?

The NPI number for Aloysius Pereira is 1417023698. It was assigned to this individual provider in the NPPES registry on November 28, 2006.

Q: What is Aloysius Pereira's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Q: When was this NPI record last updated?

The NPPES record for Aloysius Pereira was last updated on May 31, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since November 28, 2006PECOS Enrolled

8008 WESTPARK DR, MC LEAN, VA 22102(703) 287-6700(703) 287-6701 Get Directions Write a Review

NPPES record last updated: May 31, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Dr. Aloysius C Pereira Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ALOYSIUS C PEREIRA MD (NPI 1417023698) is an individual hematology & oncology provider in Mc Lean, Virginia, licensed in Virginia (0101057022) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1417023698

Entity TypeIndividualMale

Primary Taxonomy207RH0003X

Provider Legal NameDR. ALOYSIUS C PEREIRACredential: MD

Location Address8008 WESTPARK DRMc Lean, VA 22102-3109

Mailing Address2101 E Jefferson St, Kaiser Permanente Medicare EnrollmentRockville, MD 20852-4908 · (301) 816-2424 · Fax (301) 816-6308

Phone(703) 287-6700

Fax(703) 287-6701

Sole ProprietorNo

Enumeration DateNovember 28, 2006

Last NPPES UpdateMay 31, 2021

NPPES CertifiedMay 31, 2021

✔ NPI 1417023698 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RH0003X

Licenses✔ Licensed in VA · 0101057022✔ Licensed in MD · D0052967✔ Licensed in DC · MD30808

Definition

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

8008 WESTPARK DR, Mc Lean, VA 22102

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Aloysius C Pereira Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Aloysius Pereira reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc

Same address

Health Maintenance Organization

8008 WESTPARK DR
Mc Lean, VA 22102

Reassigned Medicare billing, District of Columbia and Virginia enrollments
Also billed through NPI 1699893537 (Virginia)
2,492 clinicians in this Medicare group

NPI 1376815472 (703) 490-8400

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

20 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22102 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$194.86 typical visit price

range $65.18 – $194.86

Typical copayment $48.71 (range $16.29 – $48.71)

Most-billed visit code 99205

Established Patient

$113.72 typical visit price

range $21.40 – $158.88

Typical copayment $28.43 (range $5.35 – $39.72)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

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