James Douglas Joslin, D.O.
Family Medicine Physician · Las Vegas, NV
James Douglas Joslin, D.O. is a family medicine physician with a practice address in Las Vegas, Nevada, and NPI 1164713400, issued on Apr 20, 2011. Check the license (Nevada DO1871, as entered in NPPES) on the Nevada State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- James Douglas Joslin
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- DO1871 NV
Self-reported in NPPES; status is on the state search - Practice location
- 1655 E Cactus Ave, Las Vegas, NV 89183
- Phone
- (702) 724-8880
- Enumerated
- Apr 20, 2011
- Record last updated
- Jun 1, 2026
- Fax
- (702) 724-8750
- Medicaid ID
- 1164713400 NV
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,243 in Nevada → Look up another NPI →
Also registered at 1655 E Cactus Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify James Douglas Joslin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNevada State Board of Medical Examiners
Search for license DO1871Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.0 times the Medicare Part D claims of the average family medicine physician in 2024
7,160 Medicare Part D claims for 867 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 217 claims were for opioids.
Most prescribed
- Atorvastatin Calcium651 claims
- Lisinopril349 claims
- Amlodipine Besylate333 claims
- Levothyroxine Sodium268 claims
- Rosuvastatin Calcium254 claims
- Losartan Potassium246 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.
James Douglas Joslin among 1,243 family medicine physician records in Nevada
James Douglas Joslin, D.O. 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 2011, is newer than 61% of them.
- NPI issued2011 · 61% of these records are older, 37% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- 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.
All 1,243 in Nevada → Every provider in Las Vegas → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Aaron Adaoag, MDLas Vegas, NV 891831609834852
- Mark Day, DOLas Vegas, NV 891831164436994
- Govind Koka, DOLas Vegas, NV 891831942322466
- Ashley Mangahas Abad, MDLas Vegas, NV 891781306535455
- Chi Pham, MDLas Vegas, NV 891781952888935
- Wilbert Cain, M.D.Las Vegas, NV 891911134111610
- Paul Crawford, M.D.Nellis Afb, NV 891911578557278
- Michael Gauron, MDNellis Afb, NV 891911992799514
Common questions
What is James Douglas Joslin, D.O.'s NPI number?
James Douglas Joslin, D.O.'s National Provider Identifier (NPI) is 1164713400, issued on Apr 20, 2011. An NPI identifies a provider in billing; it is not a license.
Where is James Douglas Joslin, D.O. located?
The NPPES record lists a practice address at 1655 E Cactus Ave, Las Vegas, NV, 89183. Phone: (702) 724-8880. Providers update this record themselves, so call before visiting.
How can I verify James Douglas Joslin, D.O.'s license?
NPPES lists Nevada license number DO1871, 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 James Douglas Joslin, D.O. prescribe under Medicare Part D?
In 2024, James Douglas Joslin, D.O. had 7,160 Medicare Part D claims for 867 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.