Stuart Lawrence Horwitz, MD
Gastroenterology Physician · Washington, DC
Stuart Lawrence Horwitz, MD is a gastroenterology physician with a practice address in Washington, District of Columbia, and NPI 1134180128, issued on Mar 29, 2006. Check the license (District of Columbia MD11987, as entered in NPPES) on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Stuart Lawrence Horwitz
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- MD11987 DC
Self-reported in NPPES; status is on the state search - Practice location
- 1160 Varnum St NE, Washington, DC 20017
- Phone
- (202) 832-2880
- Enumerated
- Mar 29, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (202) 832-0456
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 89 in District of Columbia → Look up another NPI →
Also registered at 1160 Varnum St NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mbecha AbangamuaSocial Worker1609585785
- Brandon AhaiweBehavior Technician1508790718
- Newton Andrews, MDCardiovascular Disease Physician1245399369
- Earl Armstrong, MDPulmonary Disease Physician1205944428
- Fnu Babila Niba FuhCase Manager/Care Coordinator1932817467
- Marc Berry, M.D.Ophthalmology Physician1699971796
Verify Stuart Lawrence Horwitz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDistrict of Columbia Board of Medicine
Search for license MD11987Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10.7 times the Medicare Part D claims of the average gastroenterology physician in 2024
8,645 Medicare Part D claims for 189 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims. 359 claims were for opioids.
Most prescribed
- Eliquis502 claims
- Atorvastatin Calcium486 claims
- Amlodipine Besylate347 claims
- Gabapentin327 claims
- Furosemide195 claims
- Jardiance195 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.
Stuart Lawrence Horwitz among 89 gastroenterology physician records in District of Columbia
Stuart Lawrence Horwitz, MD is one of 89 gastroenterology physician records with a practice address in District of Columbia. 79% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 49% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2026 · 69% 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 District of Columbia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in District of Columbia
There are 89 gastroenterology physician records in District of Columbia.
All 89 in District of Columbia → Every provider in Washington → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Tahmoures Dehesh, M.D.Washington, DC 200171740277748
- Junette Gibbons, MDWashington, DC 200171497941371
- Elizabeth Myles, MDWashington, DC 200171376606566
- Danny Shearer, MDWashington, DC 200171275594905
- Gary Thompson, MDWashington, DC 200171609838937
- Arthur West, MDWashington, DC 200171407818800
- Robert Williams, M.D.Washington Dc, DC 200171164527552
- Nicholas ChristopherWashington, DC 200161144336462
Common questions
What is Stuart Lawrence Horwitz, MD's NPI number?
Stuart Lawrence Horwitz, MD's National Provider Identifier (NPI) is 1134180128, issued on Mar 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stuart Lawrence Horwitz, MD located?
The NPPES record lists a practice address at 1160 Varnum St NE, Washington, DC, 20017. Phone: (202) 832-2880. Providers update this record themselves, so call before visiting.
How can I verify Stuart Lawrence Horwitz, MD's license?
NPPES lists District of Columbia license number MD11987, as entered by the provider. Search the District of Columbia Board of Medicine at https://dchealth.dc.gov/bomed. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Stuart Lawrence Horwitz, MD prescribe under Medicare Part D?
In 2024, Stuart Lawrence Horwitz, MD had 8,645 Medicare Part D claims for 189 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.