Margaret Schwiesow, D.O.
Gastroenterology Physician · Springfield, VA
Margaret Schwiesow, D.O. is a gastroenterology physician with a practice address in Springfield, Virginia, and NPI 1346561610, issued on Jun 21, 2010. Check the license (Virginia 0102204406, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.
- Name
- Margaret Schwiesow
- Credential
- D.O.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 0102204406 VA
Self-reported in NPPES; status is on the state search - Practice location
- 6501 Loisdale CT, Springfield, VA 22150
- Phone
- (703) 922-1313
- Enumerated
- Jun 21, 2010
- Record last updated
- May 27, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20230720001423); accepts Medicare assignment
- Medical or professional school
- New York College Of Osteo Medicine Of New York Institute Of Technology, 2010
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 536 in Virginia → Look up another NPI →
Also registered at 6501 Loisdale CT
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Patrice Akins, PHARM.DPharmacotherapy Pharmacist1952439788
- Abdel Baset Al-Shaar, MDInternal Medicine Physician1740401710
- Jennifer Amonoo-Harrison, RN/LCLactation Consultant (Registered Nurse)1508372418
Verify Margaret Schwiesow in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health Professions
Search for license 0102204406Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
26% fewer Medicare Part D claims than the average gastroenterology physician in 2024
600 Medicare Part D claims for 355 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Gavilyte-C275 claims
- Pantoprazole Sodium38 claims
- Mesalamine35 claims
- Xeljanz26 claims
- Cholestyramine Light20 claims
- Azathioprine18 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, IncWoodbridge, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Margaret Schwiesow among 536 gastroenterology physician records in Virginia
Margaret Schwiesow, D.O. is one of 536 gastroenterology physician records with a practice address in Virginia. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 73% of them.
- NPI issued2010 · 73% of these records are older, 25% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated2010 · median 2001 among the 389 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 207RG0100X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Virginia
There are 536 gastroenterology physician records in Virginia.
All 536 in Virginia → Every provider in Springfield → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Betty Butterfield, MDSpringfield, VA 221501982765418
- Ernest Katz, M.D.Springfield, VA 221501477656791
- Lakshmi Lattimer, M.D.Springfield, VA 221501629242680
- Amy Lin, M.D.Springfield, VA 221501962660985
- Jung Oh, MD,PHDSpringfield, VA 221501710108345
- Stephen Voss, M.D.Springfield, VA 221501992808125
- Walter Immel, M.D.Springfield, VA 221511104826429
- Houshang Makipour, M.D.Woodbridge, VA 221911184624389
Common questions
What is Margaret Schwiesow, D.O.'s NPI number?
Margaret Schwiesow, D.O.'s National Provider Identifier (NPI) is 1346561610, issued on Jun 21, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Schwiesow, D.O. located?
The NPPES record lists a practice address at 6501 Loisdale CT, Springfield, VA, 22150. Phone: (703) 922-1313. Providers update this record themselves, so call before visiting.
How can I verify Margaret Schwiesow, D.O.'s license?
NPPES lists Virginia license number 0102204406, 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 Margaret Schwiesow, D.O. prescribe under Medicare Part D?
In 2024, Margaret Schwiesow, D.O. had 600 Medicare Part D claims for 355 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.