Cameron M. Johnstone, MD
Internal Medicine Physician · Las Vegas, NV
Cameron M. Johnstone, MD is an internal medicine physician with a practice address in Las Vegas, Nevada, and NPI 1962909697, issued on Apr 9, 2018. Check the license (Nevada 21518, as entered in NPPES) on the Nevada State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Cameron M. Johnstone
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 21518 NV
V3175 TX
Self-reported in NPPES; status is on the state search - Practice location
- 6355 S Buffalo Dr, Las Vegas, NV 89113
- Phone
- (702) 952-9171
- Enumerated
- Apr 9, 2018
- Record last updated
- Sep 4, 2024
- Fax
- (702) 952-9170
- Medicare enrollment
- Enrolled (PECOS I20250708004349); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,229 in Nevada → Look up another NPI →
Also registered at 6355 S Buffalo Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Momina Razaq, MDInternal Medicine Physician1598023756
- Manpreet Sandhu, APNFamily Nurse Practitioner1801260534
Verify Cameron M. Johnstone in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNevada State Board of Medical Examiners
Search for license 21518Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,179 Medicare Part D claims for 111 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 16 claims were for opioids.
Most prescribed
- Eliquis129 claims
- Atorvastatin Calcium71 claims
- Pantoprazole Sodium71 claims
- Gabapentin48 claims
- Rosuvastatin Calcium46 claims
- Scopolamine44 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
- Gulf Coast Physician Services, PLLCCorpus Christi, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cameron M. Johnstone among 1,229 internal medicine physician records in Nevada
Cameron M. Johnstone, 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 2018, is newer than 76% of them.
- NPI issued2018 · 76% of these records are older, 20% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2018 · median 2006 among the 772 with a school on file
- Record last updated2024 · 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).
716 internal medicine physician records list a practice address in Las Vegas
They are 716 of the 65,269 NPPES records with a practice address in Las Vegas, and 1,229 internal medicine physician records in Nevada.
All 1,229 in Nevada → Every provider in Las Vegas → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Monsuru Ibraheem, MDLas Vegas, NV 891131215906458
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Common questions
What is Cameron M. Johnstone, MD's NPI number?
Cameron M. Johnstone, MD's National Provider Identifier (NPI) is 1962909697, issued on Apr 9, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Cameron M. Johnstone, MD located?
The NPPES record lists a practice address at 6355 S Buffalo Dr, Las Vegas, NV, 89113. Phone: (702) 952-9171. Providers update this record themselves, so call before visiting.
How can I verify Cameron M. Johnstone, MD's license?
NPPES lists Nevada license number 21518, 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 Cameron M. Johnstone, MD prescribe under Medicare Part D?
In 2024, Cameron M. Johnstone, MD had 1,179 Medicare Part D claims for 111 beneficiaries; 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.