William Carl Stallard, M.D.
Family Medicine Physician · Fairfax, VA
William Carl Stallard, M.D. is a family medicine physician with a practice address in Fairfax, Virginia, and NPI 1740694561, issued on Jun 19, 2014. Check the license (Virginia 0116027266, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.
- Name
- William Carl Stallard
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 0116027266 VA
Self-reported in NPPES; status is on the state search - Practice location
- 3650 Joseph Siewick Dr, Fairfax, VA 22033
- Phone
- (703) 391-2020
- Enumerated
- Jun 19, 2014
- Record last updated
- May 31, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20201019000087); accepts Medicare assignment
- Medical or professional school
- Virginia Commonwealth University, School Of Medicine, 2014
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 4,137 in Virginia → Look up another NPI →
Also registered at 3650 Joseph Siewick Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Andrew Bazemore, MDFamily Medicine Physician1609864099
- Lee Blecher, MDFamily Medicine Physician1336133875
- Katherine Booker, PTPhysical Therapist1023017076
Verify William Carl Stallard in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health Professions
Search for license 0116027266Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% more Medicare Part D claims than the average family medicine physician in 2024
6,341 Medicare Part D claims for 411 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 185 claims were for opioids.
Most prescribed
- Atorvastatin Calcium674 claims
- Lisinopril321 claims
- Amlodipine Besylate273 claims
- Gabapentin194 claims
- Losartan Potassium182 claims
- Tamsulosin Hcl179 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Kaiser Foundation Health Plan OF The Mid Atlantic States, IncAshburn, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Carl Stallard among 4,137 family medicine physician records in Virginia
William Carl Stallard, M.D. is one of 4,137 family medicine physician records with a practice address in Virginia. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 74% of them.
- NPI issued2014 · 74% of these records are older, 24% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2014 · median 2004 among the 2,426 with a school on file
- Record last updated2021 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
189 family medicine physician records list a practice address in Fairfax
They are 189 of the 6,584 NPPES records with a practice address in Fairfax, and 4,137 family medicine physician records in Virginia.
All 4,137 in Virginia → Every provider in Fairfax → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Lee Blecher, MDFairfax, VA 220331336133875
- Susan Burroughs, MDFairfax, VA 220331518951052
- Su Choi, M.D.Fairfax, VA 220331740289719
- Craig Clark, MDFairfax, VA 220331407840945
- Katherine Cole, MDFairfax, VA 220331508850660
- Thomas Ehrlich, MDFairfax, VA 220331447244181
- Alexander Krist, MDFairfax, VA 220331629062872
- Terence McCormally, MDFairfax, VA 220331255325890
Common questions
What is William Carl Stallard, M.D.'s NPI number?
William Carl Stallard, M.D.'s National Provider Identifier (NPI) is 1740694561, issued on Jun 19, 2014. An NPI identifies a provider in billing; it is not a license.
Where is William Carl Stallard, M.D. located?
The NPPES record lists a practice address at 3650 Joseph Siewick Dr, Fairfax, VA, 22033. Phone: (703) 391-2020. Providers update this record themselves, so call before visiting.
How can I verify William Carl Stallard, M.D.'s license?
NPPES lists Virginia license number 0116027266, as entered by the provider. Search the Virginia Department of Health Professions at https://dhp.virginiainteractive.org/lookup/index. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Carl Stallard, M.D. prescribe under Medicare Part D?
In 2024, William Carl Stallard, M.D. had 6,341 Medicare Part D claims for 411 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.