NPPES file of Aug 9, 2026

Karl Martell Larsen, O.D.

Optometrist · Las Vegas, NV

Karl Martell Larsen, O.D. is an optometrist with a practice address in Las Vegas, Nevada, and NPI 1235226523, issued on Oct 6, 2006. Check the license (Nevada 112, as entered in NPPES) with the Nevada board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1235226523
Name
Karl Martell Larsen
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
112 NV
Self-reported in NPPES; status is on the state search
Practice location
8660 W Cheyenne Ave Ste 120, Las Vegas, NV 89129
Phone
(702) 259-3937
Enumerated
Oct 6, 2006
Record last updated
Jul 21, 2022
Fax
(702) 645-6402
Medicaid ID
25-02549 NV
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 8660 W Cheyenne Ave Ste 120

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Neil Dickerson, O.D.Optometrist1588945901

Verify Karl Martell Larsen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Nevada board licenses this profession
    Search for license 112
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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92% fewer Medicare Part D claims than the average optometrist in 2024

21 Medicare Part D claims, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.

  1. Karl Larsen21
  2. Specialty average277

Most prescribed

  1. Latanoprost12 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: $36.87

1 payment: food and beverage; the largest payer was Johnson & Johnson Vision Care, Inc. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Karl Larsen$36.87
  2. Specialty average$769.99

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Karl Martell Larsen among 550 optometrist records in Nevada

Karl Martell Larsen, O.D. is one of 550 optometrist records with a practice address in Nevada. 76% 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 5% of them.

  • NPI issued2006 · 5% of these records are older, 68% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileNo · 61% of these records are
  • Record last updated2022 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Optometrist providers in Nevada

There are 550 optometrist records in Nevada.

The 8 optometrist records with the nearest ZIP codes

  1. Brian Anderson, O.D.Las Vegas, NV 891291356436661
  2. Neil Dickerson, O.D.Las Vegas, NV 891291588945901
  3. Eric Larsen, O.D.Las Vegas, NV 891291083793004
  4. Herbert Starlin, O.D.Las Vegas, NV 891291902964513
  5. Dennis GiangLas Vegas, NV 891301710549480
  6. Vincent Gori, O.D.Las Vegas, NV 891281386791630
  7. Alexandria JonesLas Vegas, NV 891281578257820
  8. Wess Jordan, O.D.Las Vegas, NV 891281770895039

Common questions

What is Karl Martell Larsen, O.D.'s NPI number?

Karl Martell Larsen, O.D.'s National Provider Identifier (NPI) is 1235226523, issued on Oct 6, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Karl Martell Larsen, O.D. located?

The NPPES record lists a practice address at 8660 W Cheyenne Ave Ste 120, Las Vegas, NV, 89129. Phone: (702) 259-3937. Providers update this record themselves, so call before visiting.

How can I verify Karl Martell Larsen, O.D.'s license?

NPPES lists Nevada license number 112, as entered by the provider. Search the Nevada board that licenses this profession; the NPPES record confirms identity only.

How much does Karl Martell Larsen, O.D. prescribe under Medicare Part D?

In 2024, Karl Martell Larsen, O.D. had 21 Medicare Part D claims; the average among optometrist prescribers was 277. 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.