Graham Simpson, MD
Internal Medicine Physician · Henderson, NV
Graham Simpson, MD is an internal medicine physician with a practice address in Henderson, Nevada, and NPI 1679786396, issued on May 8, 2007. Check the license (Nevada 3723, as entered in NPPES) on the Nevada State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Graham Simpson
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 3723 NV
Self-reported in NPPES; status is on the state search - Practice location
- 866 Seven Hills Dr, Henderson, NV 89052
- Phone
- (702) 882-0278
- Enumerated
- May 8, 2007
- Record last updated
- May 29, 2020 (not updated in 6 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,229 in Nevada → Look up another NPI →
Also registered at 866 Seven Hills Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Carrie Gillis, DPTPhysical Therapist1225237910
- Katherine Hightower, DCIndependent Medical Examiner Chiropractor1194903112
- Derek Maclean, DDSDentist1811910292
- Christopher Vannucci, PA-CMedical Physician Assistant1427196708
Verify Graham Simpson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNevada State Board of Medical Examiners
Search for license 3723Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
40 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Graham Simpson among 1,229 internal medicine physician records in Nevada
Graham Simpson, MD is one of 1,229 internal medicine physician records with a practice address in Nevada. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 50% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2020 · 43% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
181 internal medicine physician records list a practice address in Henderson
They are 181 of the 7,490 NPPES records with a practice address in Henderson, and 1,229 internal medicine physician records in Nevada.
All 1,229 in Nevada → Every provider in Henderson → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Hossein Akhondi Asl, M.D.Henderson, NV 890521609862051
- Poupak Bigger, M.D.Henderson, NV 890521023010782
- Victor Bonuel, MDHenderson, NV 890521801869862
- Hugh Burt, M.D.Henderson, NV 890521972599371
- Pio Clavecilla, MDHenderson, NV 890521659349140
- Guillermo Fraga, MDHenderson, NV 890521104809433
- Robert Gong, M.D.Henderson, NV 890521265409601
- Witold Iglikowski, M.D.Henderson, NV 890521164412680
Common questions
What is Graham Simpson, MD's NPI number?
Graham Simpson, MD's National Provider Identifier (NPI) is 1679786396, issued on May 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Graham Simpson, MD located?
The NPPES record lists a practice address at 866 Seven Hills Dr, Henderson, NV, 89052. Phone: (702) 882-0278. Providers update this record themselves, so call before visiting.
How can I verify Graham Simpson, MD's license?
NPPES lists Nevada license number 3723, 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 Graham Simpson, MD prescribe under Medicare Part D?
In 2024, Graham Simpson, MD had 40 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. 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.