Rex B Ruiz, MD - Medicare Family Practice in Centreville, VA

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Rex B Ruiz, MD is a medicare enrolled "Family Medicine" physician in Centreville, Virginia. He went to Warren Alpert Medical School Of Brown University and graduated in 1996 and has 30 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Fairfax Family Practice Centers Pc and his current practice location is 6201 Centreville Rd, Ste 100, Centreville, Virginia. You can reach out to his office (for appointments etc.) via phone at (703) 263-9600.

Rex B Ruiz is licensed to practice in Virginia (license number 0101222018) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1063418762.

Contact Information

Rex B Ruiz, MD
6201 Centreville Rd, Ste 100,
Centreville, VA 20121-2626
(703) 263-9600
(703) 266-1452

Map and Direction




Physician's Profile

Full NameRex B Ruiz
GenderMale
SpecialityFamily Practice
Experience30 Years
Location6201 Centreville Rd, Centreville, Virginia
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Rex B Ruiz attended and graduated from Warren Alpert Medical School Of Brown University in 1996
  NPI Data:
  • NPI Number: 1063418762
  • Provider Enumeration Date: 06/27/2005
  • Last Update Date: 11/27/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 8729115597
  • Enrollment ID: I20100427000702

Medical Identifiers

Medical identifiers for Rex B Ruiz such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1063418762NPI-NPPES
5619050MedicaidVA
217957OtherVAANTHEM

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 0101222018 (Virginia)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Alternate Solutions Home Health-fairfaxFairfax, VAHome health agency
Livinrite Home Health ServicesManassas, VAHome health agency
Five Star Home Health CareChantilly, VAHome health agency
Inova Fair Oaks HospitalFairfax, VAHospital
Uva Health Prince William Medical CenterManassas, VAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Fairfax Family Practice Centers Pc4082513031106

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. Rex B Ruiz allows following entities to bill medicare on his behalf.
Entity NameFairfax Family Practice Centers PC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1205944964
PECOS PAC ID: 4082513031
Enrollment ID: O20040108000208
Entity NamePrivia Medical Group, LLC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1013042480
PECOS PAC ID: 4385682061
Enrollment ID: O20050422000298
Entity NameInova Physician Partners LLC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1215264916
PECOS PAC ID: 2466581772
Enrollment ID: O20100525000846

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. Rex B Ruiz 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
Rex B Ruiz, MD
Po Box 791128,
Baltimore, MD 21279-1128

Ph: (703) 391-2030		Rex B Ruiz, MD
6201 Centreville Rd, Ste 100,
Centreville, VA 20121-2626

Ph: (703) 263-9600

Reviews and Comments


Family Medicine Doctors in Centreville, VA

Beverly Fajardo,
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 14801 Lynhodge Ct, Centreville, VA 20120
Phone: 786-230-7336    
Dr. Courtney Katherine Ryan, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 5645 Stone Rd, Centreville, VA 20120
Phone: 703-266-2442    Fax: 703-266-7158
Dr. Nasir Ramin, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 5715 Centre Square Dr, Centreville, VA 20120
Phone: 703-631-5151    
William H Carter, MD
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 6201 Centreville Rd, Ste 100, Centreville, VA 20121
Phone: 703-263-9000    Fax: 703-266-1452
Dr. Traci Zimmerman Jones, D.O.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 14631 Route 29 Ste 116, Centreville, VA 20121
Phone: 703-348-5300    
Asma Islam, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 6101 Redwood Square Ctr Ste 200, Centreville, VA 20121
Phone: 703-631-0331    
Janice Lynn Keyes, MD
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 6101 Redwood Square Ctr Ste 200, Centreville, VA 20121
Phone: 703-631-0331    Fax: 703-631-2573

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).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.