Matthew Larsen, M.D.
Emergency Medicine Physician · Las Vegas, NV
Matthew Larsen, M.D. is an emergency medicine physician with a practice address in Las Vegas, Nevada, and NPI 1588820245, issued on Aug 1, 2008. Check the license (Nevada 13969, as entered in NPPES) on the Nevada State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Matthew Larsen
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 13969 NV
Self-reported in NPPES; status is on the state search - Practice location
- 620 Shadow Lane, Las Vegas, NV 89106
- Phone
- (702) 388-4506
- Enumerated
- Aug 1, 2008
- Record last updated
- Oct 24, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (702) 388-4810
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 575 in Nevada → Look up another NPI →
Also registered at 620 Shadow Lane
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Matthew Larsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNevada State Board of Medical Examiners
Search for license 13969Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% fewer Medicare Part D claims than the average emergency medicine physician in 2024
151 Medicare Part D claims for 109 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 19 claims were for opioids.
Most prescribed
- Azithromycin15 claims
- Hydrocodone-Acetaminophen14 claims
- Cephalexin12 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Matthew Larsen among 575 emergency medicine physician records in Nevada
Matthew Larsen, M.D. is one of 575 emergency medicine physician records with a practice address in Nevada. 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 2008, is newer than 43% of them.
- NPI issued2008 · 43% of these records are older, 53% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2011 · 45% 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 Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in Nevada
There are 575 emergency medicine physician records in Nevada.
All 575 in Nevada → Every provider in Las Vegas → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Marc Abramow, MDLas Vegas, NV 891061790739928
- Kathleen Cornia, MDLas Vegas, NV 891061487608618
- James Game, MDLas Vegas, NV 891061063467835
- Catherine Ghanem, MDLas Vegas, NV 891061699729830
- Jason Grabert, MDLas Vegas, NV 891061598719718
- Nathan Heaps, MDLas Vegas, NV 891061164476750
- Edwin Homansky, MDLas Vegas, NV 891061902859028
- Knef LizasoLas Vegas, NV 891061396799532
Common questions
What is Matthew Larsen, M.D.'s NPI number?
Matthew Larsen, M.D.'s National Provider Identifier (NPI) is 1588820245, issued on Aug 1, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Matthew Larsen, M.D. located?
The NPPES record lists a practice address at 620 Shadow Lane, Las Vegas, NV, 89106. Phone: (702) 388-4506. Providers update this record themselves, so call before visiting.
How can I verify Matthew Larsen, M.D.'s license?
NPPES lists Nevada license number 13969, as entered by the provider. Search the Nevada State Board of Medical Examiners at https://medboard.nv.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Matthew Larsen, M.D. prescribe under Medicare Part D?
In 2024, Matthew Larsen, M.D. had 151 Medicare Part D claims for 109 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Matthew Larsen, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.