Dr Aloysius C Pereira, MD - Medicare Internal Medicine in Mc Lean, VA

Dr Aloysius C Pereira, MD is a medicare enrolled "Internal Medicine - Hematology & Oncology" physician in Mc Lean, Virginia. His current practice location is 8008 Westpark Dr, Mc Lean, Virginia. You can reach out to his office (for appointments etc.) via phone at (703) 287-6700.

Dr Aloysius C Pereira is licensed to practice in Virginia (license number 0101057022) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1417023698.

Contact Information

Dr Aloysius C Pereira, MD
8008 Westpark Dr,
Mc Lean, VA 22102-3109
(703) 287-6700
(703) 287-6701

Map and Direction




Physician's Profile

Full NameDr Aloysius C Pereira
GenderMale
SpecialityInternal Medicine - Hematology & Oncology
Location8008 Westpark Dr, Mc Lean, Virginia
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1417023698
  • Provider Enumeration Date: 11/28/2006
  • Last Update Date: 05/31/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 3870643182
  • Enrollment ID: I20090609000026

Medical Identifiers

Medical identifiers for Dr Aloysius C Pereira such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1417023698NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RH0003XInternal Medicine - Hematology & Oncology D0052967 (Maryland)Secondary
207RH0003XInternal Medicine - Hematology & Oncology 0101057022 (Virginia)Primary
207RH0003XInternal Medicine - Hematology & Oncology MD30808 (District Of Columbia)Secondary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Aloysius C Pereira allows following entities to bill medicare on his behalf.
Entity NameKaiser Foundation Health Plan Of The Mid Atlantic States, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1952461816
PECOS PAC ID: 3779495858
Enrollment ID: O20040105000308

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Aloysius C Pereira is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Aloysius C Pereira, MD
2101 E Jefferson St, Kaiser Permanente Medicare Enrollment,
Rockville, MD 20852-4908

Ph: (301) 816-2424
Dr Aloysius C Pereira, MD
8008 Westpark Dr,
Mc Lean, VA 22102-3109

Ph: (703) 287-6700

Reviews and Comments


Internal Medicine Doctors in Mc Lean, VA

Dr. Aroti Hegde, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 7342 Hooking Rd, Mc Lean, VA 22101
Phone: 703-288-0535    Fax: 703-288-0536
Dr. John Sanil Samuel, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 8008 Westpark Dr, Mc Lean, VA 22102
Phone: 703-287-1504    Fax: 301-388-1795
Dr. Shore H. Armani, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 1580 Chain Bridge Rd, Mc Lean, VA 22101
Phone: 703-883-9696    Fax: 703-883-1982
Nadine Dubowitz, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 1420 Beverly Rd Ste 100, Mc Lean, VA 22101
Phone: 703-852-8287    Fax: 703-852-8288
Dr. Saeed Taheri, M.D.
Hematology & Oncology
Medicare: Not Enrolled in Medicare
Practice Location: 8300 Greensboro Dr, Suite 1050, Mc Lean, VA 22102
Phone: 703-394-3400    
Liliana Manrique,
Hematology & Oncology
Medicare: Not Enrolled in Medicare
Practice Location: 1300 Chain Bridge Rd, Mc Lean, VA 22101
Phone: 703-790-5454    Fax: 202-966-0940
Ashwini Sardana, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 1420 Beverly Rd Ste 100, Mc Lean, VA 22101
Phone: 703-852-8287    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

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