Joshua Harkless, MD
Emergency Medicine Physician · Lake St Louis, MO
Joshua Harkless, MD is an emergency medicine physician with a practice address in Lake St Louis, Missouri, and NPI 1033783717, issued on May 17, 2021. Check the license (Missouri 2024013461, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Joshua Harkless
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 2024013461 MO
Self-reported in NPPES; status is on the state search - Practice location
- 100 Medical Plz, Lake St Louis, MO 63367
- Phone
- (636) 625-5300
- Enumerated
- May 17, 2021
- Record last updated
- Jul 25, 2024
- Medicare enrollment
- Enrolled (PECOS I20240709003767); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 2021
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,405 in Missouri → Look up another NPI →
Also registered at 100 Medical Plz
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lindsey AyoPhysical Therapist1952252033
- Robert Baronovic, PTPhysical Therapist1740010180
- Montacer Belfancha, NPNurse Practitioner1639914609
- Audrey Bolden, NPNurse Practitioner1316455959
- Vincent Boston, MDEmergency Medicine Physician1134572340
- Amanda Bratton, RD, LDMetabolic Nutrition Registered Dietitian1710252440
Verify Joshua Harkless in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license 2024013461Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average emergency medicine physician in 2024
75 Medicare Part D claims for 61 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen11 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
- Cep America LLCRichmond Heights, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joshua Harkless among 1,405 emergency medicine physician records in Missouri
Joshua Harkless, MD is one of 1,405 emergency medicine physician records with a practice address in Missouri. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 86% of them.
- NPI issued2021 · 86% of these records are older, 10% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2021 · median 2012 among the 808 with a school on file
- Record last updated2024 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 emergency medicine physician records list a practice address in Lake St Louis
They are 4 of the 264 NPPES records with a practice address in Lake St Louis, and 1,405 emergency medicine physician records in Missouri.
All 1,405 in Missouri → Every provider in Lake St Louis → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Vincent Boston, MDLake St Louis, MO 633671134572340
- Stanton Schiller, MDLake St Louis, MO 633671962575183
- Gregory Siegel, M.D.Lake St Louis, MO 633671740675594
- Victor Bailey, DOO Fallon, MO 633681760518336
- Randi Becker, MDO Fallon, MO 633681235392788
- Leo Hsu, MDO Fallon, MO 633681215965702
- Nancy Niemann Royer, MDO Fallon, MO 633681326094145
- Shirin Pinto, MDDardenne Prairie, MO 633681134102262
Common questions
What is Joshua Harkless, MD's NPI number?
Joshua Harkless, MD's National Provider Identifier (NPI) is 1033783717, issued on May 17, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Joshua Harkless, MD located?
The NPPES record lists a practice address at 100 Medical Plz, Lake St Louis, MO, 63367. Phone: (636) 625-5300. Providers update this record themselves, so call before visiting.
How can I verify Joshua Harkless, MD's license?
NPPES lists Missouri license number 2024013461, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Joshua Harkless, MD prescribe under Medicare Part D?
In 2024, Joshua Harkless, MD had 75 Medicare Part D claims for 61 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.