Samuel Kallus, M.D.
Gastroenterology Physician · Washington, DC
Samuel Kallus, M.D. is a gastroenterology physician with a practice address in Washington, District of Columbia, and NPI 1558660761, issued on Mar 28, 2011. Check the license (District of Columbia MD040964, as entered in NPPES) on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Samuel Kallus
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- MD040964 DC
Self-reported in NPPES; status is on the state search - Practice location
- 3800 Reservoir RD NW, Washington, DC 20007
- Phone
- (202) 444-8168
- Enumerated
- Mar 28, 2011
- Record last updated
- May 10, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (877) 303-1460
- Medicare enrollment
- Enrolled (PECOS I20150130000595); accepts Medicare assignment
- Medical or professional school
- Albert Einstein College Of Medicine Of Yeshiva University, 2011
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 89 in District of Columbia → Look up another NPI →
Also registered at 3800 Reservoir RD NW
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Samuel Kallus in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDistrict of Columbia Board of Medicine
Search for license MD040964Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
43% fewer Medicare Part D claims than the average gastroenterology physician in 2024
463 Medicare Part D claims for 209 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Sod Sulf-Potass Sulf-Mag Sulf91 claims
- Omeprazole67 claims
- Pantoprazole Sodium47 claims
- Famotidine36 claims
- Creon28 claims
- Sutab18 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.
Industry payments in 2024: $2,310.49
92 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Capital Digestive Care LLCWashington, DC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Samuel Kallus among 89 gastroenterology physician records in District of Columbia
Samuel Kallus, M.D. 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 2011, is newer than 71% of them.
- NPI issued2011 · 71% of these records are older, 24% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2011 · median 2004 among the 57 with a school on file
- Record last updated2018 · 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
- Stanley BenjaminWashington, DC 200071336147297
- John CarrollWashington, DC 200071770581837
- Walid Chalhoub, M.D.Washington, DC 200071164759445
- Nadim HaddadWashington, DC 200071649278441
- Christine Hsu, MDWashington, DC 200071619127255
- Joseph Jennings, M.D.Washington, DC 200071538435714
- Annie Kruger, MD, PHDWashington, DC 200071649566100
- James LewisWashington, DC 200071396745212
Common questions
What is Samuel Kallus, M.D.'s NPI number?
Samuel Kallus, M.D.'s National Provider Identifier (NPI) is 1558660761, issued on Mar 28, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Samuel Kallus, M.D. located?
The NPPES record lists a practice address at 3800 Reservoir RD NW, Washington, DC, 20007. Phone: (202) 444-8168. Providers update this record themselves, so call before visiting.
How can I verify Samuel Kallus, M.D.'s license?
NPPES lists District of Columbia license number MD040964, 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 Samuel Kallus, M.D. prescribe under Medicare Part D?
In 2024, Samuel Kallus, M.D. had 463 Medicare Part D claims for 209 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.