Marc Devries Larsen, MD
Emergency Medical Services (Emergency Medicine) Physician · Kansas City, MO
Marc Devries Larsen, MD is an emergency medical services (emergency medicine) physician with a practice address in Kansas City, Missouri, and NPI 1144236159, issued on Jul 31, 2006. Check the license (Missouri 2006010971, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Marc Devries Larsen
- Credential
- MD
- Primary taxonomy
- Emergency Medical Services (Emergency Medicine) Physician 207PE0004X
- License number
- 2006010971 MO
Self-reported in NPPES; status is on the state search - Practice location
- 4401 Wornall RD, Kansas City, MO 64111
- Phone
- (816) 932-2047
- Enumerated
- Jul 31, 2006
- Record last updated
- Mar 3, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20190925003214); accepts Medicare assignment
- Medical or professional school
- University Of Kansas School Of Med (Kc/Wich/Sal), 2003
- Entity
- Type 1 · individual
8 nearest emergency medical services (emergency medicine) physician records → All 59 in Missouri → Look up another NPI →
Also registered at 4401 Wornall RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Dana Abdel Jawad, DNP, APRN, FNP-CFamily Nurse Practitioner1245185974
- Mahmoud Abdelsamia, MDHematology & Oncology Physician1295351476
- Anas Abou Merhi, MDStudent in an Organized Health Care Education/Training Program1699613992
- Tamara Adams, MSRDLDRegistered Dietitian1467667220
- Mohamed Ahmed, MDGastroenterology Physician1194353425
Verify Marc Devries Larsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license 2006010971Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
16% more Medicare Part D claims than the average emergency medical services (emergency medicine) physician in 2024
338 Medicare Part D claims for 237 beneficiaries, against an average of 292 among the 1,653 providers of this specialty who prescribed in Part D. 61 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen44 claims
- Cephalexin33 claims
- Prednisone18 claims
- Doxycycline Hyclate17 claims
- Ondansetron Odt17 claims
- Methocarbamol16 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
- Mep Kansas LLCOverland Park, KS
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marc Devries Larsen among 59 emergency medical services (emergency medicine) physician records in Missouri
Marc Devries Larsen, MD is one of 59 emergency medical services (emergency medicine) physician records with a practice address in Missouri. 56% 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 14% of them.
- NPI issued2006 · 14% of these records are older, 32% newer
- In a Medicare fileYes · 56% of these records are
- In the CMS Doctors and Clinicians fileYes · 29% of these records are
- Graduated2003 · median 2003 among the 17 with a school on file
- Record last updated2008 · 68% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207PE0004X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medical Services (Emergency Medicine) Physician providers in Missouri
There are 59 emergency medical services (emergency medicine) physician records in Missouri.
All 59 in Missouri → Every provider in Kansas City → Emergency Medical Services (Emergency Medicine) Physician nationwide →
The 8 emergency medical services (emergency medicine) physician records with the nearest ZIP codes
- Robert Leitch, MDKansas City, MO 641111629052857
- John Lorei, M.D.Kansas City, MO 641111033222997
- Anthony Bonin, M.D.Kansas City, MO 641141114147857
- Douglas Coe, M.D.Kansas City, MO 641081588670962
- Patrick Greenwood, MDKansas City, MO 641141679572606
- Jeffrey Hackman, MDKansas City, MO 641081114989183
- David Hobley, M.D.Kansas City, MO 641141114144219
- Thomas Millard, M.D.Kansas City, MO 641141336177898
Common questions
What is Marc Devries Larsen, MD's NPI number?
Marc Devries Larsen, MD's National Provider Identifier (NPI) is 1144236159, issued on Jul 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marc Devries Larsen, MD located?
The NPPES record lists a practice address at 4401 Wornall RD, Kansas City, MO, 64111. Phone: (816) 932-2047. Providers update this record themselves, so call before visiting.
How can I verify Marc Devries Larsen, MD's license?
NPPES lists Missouri license number 2006010971, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Marc Devries Larsen, MD prescribe under Medicare Part D?
In 2024, Marc Devries Larsen, MD had 338 Medicare Part D claims for 237 beneficiaries; the average among emergency medical services (emergency medicine) physician prescribers was 292. 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.