Francis G. O'Connor, MD
Family Medicine Physician · Fairfax, VA
Francis G. O'Connor, MD is a family medicine physician with a practice address in Fairfax, Virginia, and NPI 1316925340, issued on Jan 9, 2006. Check the license (Virginia 0101046842, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.
- Name
- Francis G. O'Connor
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 0101046842 VA
Self-reported in NPPES; status is on the state search - Practice location
- 3650 Joseph Siewick Drive, Fairfax, VA 22033
- Phone
- (703) 391-2040
- Enumerated
- Jan 9, 2006
- Record last updated
- Nov 27, 2023
- Fax
- (703) 391-1211
- Medicare enrollment
- Enrolled (PECOS I20090326000394); accepts Medicare assignment
- Medical or professional school
- State University Of Ny Upstate Medical University, 1985
- 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 Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Francis G. O'Connor in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health Professions
Search for license 0101046842Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Inova Physician Partners LLCFairfax, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Francis G. O'Connor among 4,137 family medicine physician records in Virginia
Francis G. O'Connor, MD 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 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 50% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1985 · median 2004 among the 2,426 with a school on file
- Record last updated2023 · 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 Francis G. O'Connor, MD's NPI number?
Francis G. O'Connor, MD's National Provider Identifier (NPI) is 1316925340, issued on Jan 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Francis G. O'Connor, MD located?
The NPPES record lists a practice address at 3650 Joseph Siewick Drive, Fairfax, VA, 22033. Phone: (703) 391-2040. Providers update this record themselves, so call before visiting.
How can I verify Francis G. O'Connor, MD's license?
NPPES lists Virginia license number 0101046842, 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.
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.