NPPES file of Aug 9, 2026

Vincent Gassen, O.D.

Optometrist · Henderson, NV

Vincent Gassen, O.D. is an optometrist with a practice address in Henderson, Nevada, and NPI 1356340863, issued on Jul 18, 2005. Check the license (Nevada 364, 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
1356340863
Name
Vincent Gassen
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
364 NV
Self-reported in NPPES; status is on the state search
Practice location
1505 Wigwam Pkwy Ste 100, Henderson, NV 89074
Phone
(702) 896-6043
Enumerated
Jul 18, 2005
Record last updated
Jan 3, 2024
Fax
(702) 896-9591
Medicaid ID
1356340863 NV
Medicare enrollment
Enrolled (PECOS I20090416000297); accepts Medicare assignment
Medical or professional school
Pacific University - College Of Optometry, 1999
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1505 Wigwam Pkwy Ste 100

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

  1. Weldon Havins, M.D.Ophthalmology Physician1588653364
  2. Shoib Myint, DOOphthalmology Physician1730160789
  3. Darrick Neibaur, D.O.Ophthalmology Physician1134375918
  4. Douglas Orton, ODOptometrist1346249935
  5. Rajy Rouweyha, M.D.Ophthalmology Physician1306889498
  6. Naomie Warner, D.O.Ophthalmology Physician1871924399

Verify Vincent Gassen 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 364
    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
Find the Nevada license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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10.7 times the Medicare Part D claims of the average optometrist in 2024

2,975 Medicare Part D claims for 698 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 31% of claims.

  1. Vincent Gassen2,975
  2. Specialty average277

Most prescribed

  1. Latanoprost1,115 claims
  2. Brimonidine Tartrate384 claims
  3. Dorzolamide-Timolol367 claims
  4. Timolol Maleate298 claims
  5. Neomycin-Polymyxin-Dexameth153 claims
  6. Prednisolone Acetate152 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: $102.66

4 payments; by number, the most common kind was food and beverage; the largest payer was Glaukos Corporation. 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. Vincent Gassen$102.66
  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.

Bills Medicare through one group practice

  1. Shepherd Eye Center LtdLas Vegas, NV

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Vincent Gassen among 550 optometrist records in Nevada

Vincent Gassen, 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 95% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated1999 · median 2010 among the 332 with a school on file
  • Record last updated2024 · 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. Christopher Burt, ODHenderson, NV 890741982797460
  2. Thang DoanHenderson, NV 890741306295951
  3. Jeremy Kei, ODHenderson, NV 890741194490508
  4. Thomas Kroll, ODHenderson, NV 890741114913472
  5. Michael Mayer, O.D.Henderson, NV 890741043262025
  6. Douglas Orton, ODHenderson, NV 890741346249935
  7. Avneet Purewal, ODHenderson, NV 890741598381543
  8. Spencer Quinton, O.D.Henderson, NV 890741356425847

Common questions

What is Vincent Gassen, O.D.'s NPI number?

Vincent Gassen, O.D.'s National Provider Identifier (NPI) is 1356340863, issued on Jul 18, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Vincent Gassen, O.D. located?

The NPPES record lists a practice address at 1505 Wigwam Pkwy Ste 100, Henderson, NV, 89074. Phone: (702) 896-6043. Providers update this record themselves, so call before visiting.

How can I verify Vincent Gassen, O.D.'s license?

NPPES lists Nevada license number 364, as entered by the provider. Search the Nevada board that licenses this profession; the NPPES record confirms identity only.

How much does Vincent Gassen, O.D. prescribe under Medicare Part D?

In 2024, Vincent Gassen, O.D. had 2,975 Medicare Part D claims for 698 beneficiaries; 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.