William Carl Stallard, MD - Medicare Family Practice in Fairfax, VA

William Carl Stallard, MD is a medicare enrolled "Family Medicine" physician in Fairfax, Virginia. He went to Virginia Commonwealth University, School Of Medicine and graduated in 2014 and has 10 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Kaiser Foundation Health Plan Of The Mid-atlantic States, Inc, Kaiser Foundation Health Plan Of The Mid-atlantic States, Inc, Kaiser Foundation Health Plan Of The Mid-atlantic States, Inc and his current practice location is 3650 Joseph Siewick Dr, Suite 400, Fairfax, Virginia. You can reach out to his office (for appointments etc.) via phone at (703) 391-2020.

William Carl Stallard is licensed to practice in Virginia (license number 0116027266) 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 1740694561.

Contact Information

William Carl Stallard, MD
3650 Joseph Siewick Dr, Suite 400,
Fairfax, VA 22033-1710
(703) 391-2020
Not Available

Map and Direction




Physician's Profile

Full NameWilliam Carl Stallard
GenderMale
SpecialityFamily Practice
Experience10 Years
Location3650 Joseph Siewick Dr, Fairfax, 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:
  • William Carl Stallard attended and graduated from Virginia Commonwealth University, School Of Medicine in 2014
  NPI Data:
  • NPI Number: 1740694561
  • Provider Enumeration Date: 06/19/2014
  • Last Update Date: 05/31/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 5092017012
  • Enrollment ID: I20160108000067

Medical Identifiers

Medical identifiers for William Carl Stallard such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1740694561NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 0116027266 (Virginia)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Kaiser Foundation Health Plan Of The Mid-atlantic States, Inc37794958581628
Kaiser Foundation Health Plan Of The Mid-atlantic States, Inc37794958581628
Kaiser Foundation Health Plan Of The Mid-atlantic States, Inc37794958581628

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. William Carl Stallard 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
Entity NamePrivia Medical Group Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1013042480
PECOS PAC ID: 4385682061
Enrollment ID: O20050422000298

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. William Carl Stallard 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
William Carl Stallard, MD
3650 Joseph Siewick Dr, Suite 400,
Fairfax, VA 22033-1710

Ph: (703) 391-2020
William Carl Stallard, MD
3650 Joseph Siewick Dr, Suite 400,
Fairfax, VA 22033-1710

Ph: (703) 391-2020

Reviews and Comments


Family Medicine Doctors in Fairfax, VA

Thuy Phuong Thi Vo, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3650 Joseph Siewick Dr, 400, Fairfax, VA 22033
Phone: 703-391-2020    
Dr. David Drake Leonard, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3911 Blenheim Blvd Ste 41c, Fairfax, VA 22030
Phone: 703-352-7100    Fax: 703-539-8579
Andaleeb Rahman, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 12255 Fair Lakes Pkwy, Fairfax, VA 22033
Phone: 703-359-7878    
Christine Marie Longo, DO
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 2987 District Ave Ste 120, Fairfax, VA 22031
Phone: 888-663-6331    
Dr. Sally May Abilmona, DO
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 3650 Joseph Siewick Dr Ste 400, Fairfax, VA 22033
Phone: 703-391-2020    
Hannah Byrd Depoy, DO
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 3650 Joseph Siewick Dr, Fairfax, VA 22033
Phone: 703-391-2020    
Dr. Heon Soo Yi, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3650 Joseph Siewick Dr, Suite 400, Fairfax, VA 22033
Phone: 703-391-2020    

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.