Brett David Kalmowitz, MD
Gastroenterology Physician · Providence, RI
Brett David Kalmowitz, MD is a gastroenterology physician with a practice address in Providence, Rhode Island, and NPI 1700817269, issued on Jul 5, 2006. Check the license (Rhode Island MD12041, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Brett David Kalmowitz
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- MD12041 RI
210642 MA
Self-reported in NPPES; status is on the state search - Practice location
- 44 W River St, Providence, RI 02904
- Phone
- (401) 274-4800
- Enumerated
- Jul 5, 2006
- Record last updated
- Oct 15, 2025
- Fax
- (401) 454-0410
- Medicare enrollment
- Enrolled (PECOS I20060919000433); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 1999
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 96 in Rhode Island → Look up another NPI →
Also registered at 44 W River St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alyn Adrain, M.D.Gastroenterology Physician1225027766
- Evan Cohen, M.D.Gastroenterology Physician1538158068
- Jaclyn Decoursey, PA-CPhysician Assistant1902466188
- Lisa Dowd, RNPAdult Health Nurse Practitioner1437143526
- Valley Dreisbach, M.D.Gastroenterology Physician1629250527
- Jennifer Fallon, FNP-BCFamily Nurse Practitioner1184435810
Verify Brett David Kalmowitz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersRhode Island Board of Medical Licensure and Discipline
Search for license MD12041Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
24% more Medicare Part D claims than the average gastroenterology physician in 2024
1,006 Medicare Part D claims for 260 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Omeprazole275 claims
- Pantoprazole Sodium87 claims
- Sucralfate61 claims
- Famotidine58 claims
- Linzess46 claims
- Peg 3350-Electrolyte41 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: $376.45
8 payments; by number, the most common kind was food and beverage; the largest payer was Phathom Pharmaceuticals, 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 2 group practices
- Gastroenterology Associates IncProvidence, RI
- University Gastroenterology, LLCProvidence, RI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brett David Kalmowitz among 96 gastroenterology physician records in Rhode Island
Brett David Kalmowitz, MD is one of 96 gastroenterology physician records with a practice address in Rhode Island. 82% 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 19% of them.
- NPI issued2006 · 19% of these records are older, 41% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1999 · median 1997 among the 66 with a school on file
- Record last updated2025 · 51% 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 Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Rhode Island
There are 96 gastroenterology physician records in Rhode Island.
All 96 in Rhode Island → Every provider in Providence → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Alyn Adrain, M.D.Providence, RI 029041225027766
- Evan Cohen, M.D.Providence, RI 029041538158068
- Valley Dreisbach, M.D.Providence, RI 029041629250527
- Tian Gao, M.D.Providence, RI 029041306073846
- Neil Greenspan, M.D.Providence, RI 029041023007556
- Philip McAndrew, M.D.Providence, RI 029041376614966
- Amanda Pressman, M.D.Providence, RI 029041124059696
- Herbert Rakatansky, M.D.Providence, RI 029041841289360
Common questions
What is Brett David Kalmowitz, MD's NPI number?
Brett David Kalmowitz, MD's National Provider Identifier (NPI) is 1700817269, issued on Jul 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Brett David Kalmowitz, MD located?
The NPPES record lists a practice address at 44 W River St, Providence, RI, 02904. Phone: (401) 274-4800. Providers update this record themselves, so call before visiting.
How can I verify Brett David Kalmowitz, MD's license?
NPPES lists Rhode Island license number MD12041, as entered by the provider. Search the Rhode Island Board of Medical Licensure and Discipline at https://healthri.mylicense.com/Verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Brett David Kalmowitz, MD prescribe under Medicare Part D?
In 2024, Brett David Kalmowitz, MD had 1,006 Medicare Part D claims for 260 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.