NPPES file of Aug 9, 2026

Gregory Desimone, DO

Family Medicine Physician · Las Vegas, NV

Gregory Desimone, DO is a family medicine physician with a practice address in Las Vegas, Nevada, and NPI 1851785687, issued on Mar 18, 2015. Check the license (Nevada DO2589, as entered in NPPES) on the Nevada State Board of Medical Examiners; 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
1851785687
Name
Gregory Desimone
Credential
DO
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
DO2589 NV
Self-reported in NPPES; status is on the state search
Practice location
4919 W Craig RD, Las Vegas, NV 89130
Phone
(725) 220-8706
Enumerated
Mar 18, 2015
Record last updated
Apr 14, 2026
Medicare enrollment
Enrolled (PECOS I20190708002335); accepts Medicare assignment
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 4919 W Craig RD

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

  1. Kasey Abanonu, MDInternal Medicine Physician1609109644
  2. Dorothy May Agdamag, APRNNurse Practitioner1780195446
  3. Hazel Felix, NURSE PRACTITIONERFamily Nurse Practitioner1386073864
  4. Karyn Harries, DOFamily Medicine Physician1376571455
  5. Rebecca O'Rourke, M.D.Family Medicine Physician1457415069
  6. Cherielynn Wagner, DOFamily Medicine Physician1295175271

Verify Gregory Desimone in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNevada State Board of Medical Examiners
    Search for license DO2589
    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
Open 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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65% more Medicare Part D claims than the average family medicine physician in 2024

5,838 Medicare Part D claims for 1,097 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 43 claims were for opioids.

  1. Gregory Desimone5,838
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium427 claims
  2. Losartan Potassium311 claims
  3. Amlodipine Besylate264 claims
  4. Levothyroxine Sodium224 claims
  5. Lisinopril191 claims
  6. Rosuvastatin Calcium183 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

  1. Centerwell Senior Primary Care NV P CLas Vegas, NV

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

Gregory Desimone among 1,243 family medicine physician records in Nevada

Gregory Desimone, DO is one of 1,243 family medicine physician records with a practice address in Nevada. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 71% of them.

  • NPI issued2015 · 71% of these records are older, 27% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2016 · median 2008 among the 726 with a school on file
  • Record last updated2026 · 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 207Q00000X and a Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

578 family medicine physician records list a practice address in Las Vegas

They are 578 of the 65,269 NPPES records with a practice address in Las Vegas, and 1,243 family medicine physician records in Nevada.

The 8 family medicine physician records with the nearest ZIP codes

  1. Juan Borja, DOLas Vegas, NV 891301134359854
  2. Benjamin Chan, MDLas Vegas, NV 891301205920675
  3. Tadesse Debele, MD, MSLas Vegas, NV 891301164999660
  4. Karyn Harries, DOLas Vegas, NV 891301376571455
  5. Gurinderpal Khaira, MDLas Vegas, NV 891301053547828
  6. Ronald Kohn, MDLas Vegas, NV 891301306881446
  7. Rebecca O'Rourke, M.D.Las Vegas, NV 891301457415069
  8. Tony Sarkissian, MDLas Vegas, NV 891301508901919

Common questions

What is Gregory Desimone, DO's NPI number?

Gregory Desimone, DO's National Provider Identifier (NPI) is 1851785687, issued on Mar 18, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Desimone, DO located?

The NPPES record lists a practice address at 4919 W Craig RD, Las Vegas, NV, 89130. Phone: (725) 220-8706. Providers update this record themselves, so call before visiting.

How can I verify Gregory Desimone, DO's license?

NPPES lists Nevada license number DO2589, 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 Gregory Desimone, DO prescribe under Medicare Part D?

In 2024, Gregory Desimone, DO had 5,838 Medicare Part D claims for 1,097 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.