Kenneth Robert Larsen, D.O
Emergency Medicine Physician · Warwick, RI
Kenneth Robert Larsen, D.O is an emergency medicine physician with a practice address in Warwick, Rhode Island, and NPI 1003894940, issued on Dec 31, 2005. Check the license (Rhode Island 490, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Kenneth Robert Larsen
- Credential
- D.O
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 490 RI
273 CT
Self-reported in NPPES; status is on the state search - Practice location
- 455 Toll Gate RD, Warwick, RI 02886
- Phone
- (401) 736-4289
- Enumerated
- Dec 31, 2005
- Record last updated
- Jul 13, 2026
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 418 in Rhode Island → Look up another NPI →
Also registered at 455 Toll Gate RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Kenneth Robert Larsen 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 490Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average emergency medicine physician in 2024
21 Medicare Part D claims, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
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.
Kenneth Robert Larsen among 418 emergency medicine physician records in Rhode Island
Kenneth Robert Larsen, D.O is one of 418 emergency medicine physician records with a practice address in Rhode Island. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 98% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2026 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
102 emergency medicine physician records list a practice address in Warwick
They are 102 of the 2,776 NPPES records with a practice address in Warwick, and 418 emergency medicine physician records in Rhode Island.
All 418 in Rhode Island → Every provider in Warwick → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Alfonso Cardenas, M.D.Warwick, RI 028861588632541
- Norman Chou, M.D.Warwick, RI 028861396713905
- Peter Graves, MDWarwick, RI 028861346218989
- Katie Hamblett, MDWarwick, RI 028861881635639
- Eric Harrington, D.O.Warwick, RI 028861124096102
- Robert Heinl, M.D.Warwick, RI 028861679541213
- Kathleen Katamura, MDWarwick, RI 028861477594281
- Karl Machata, M.D.Warwick, RI 028861114995115
Common questions
What is Kenneth Robert Larsen, D.O's NPI number?
Kenneth Robert Larsen, D.O's National Provider Identifier (NPI) is 1003894940, issued on Dec 31, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Kenneth Robert Larsen, D.O located?
The NPPES record lists a practice address at 455 Toll Gate RD, Warwick, RI, 02886. Phone: (401) 736-4289. Providers update this record themselves, so call before visiting.
How can I verify Kenneth Robert Larsen, D.O's license?
NPPES lists Rhode Island license number 490, 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 Kenneth Robert Larsen, D.O prescribe under Medicare Part D?
In 2024, Kenneth Robert Larsen, D.O had 21 Medicare Part D claims; the average among emergency medicine physician prescribers was 226. 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.