NPPES file of Aug 9, 2026

Joshua David Korosac, D.O.

Emergency Medical Services (Emergency Medicine) Physician · Lawrence, KS

Joshua David Korosac, D.O. is an emergency medical services (emergency medicine) physician with a practice address in Lawrence, Kansas, and NPI 1700106168, issued on Jun 8, 2010. Check the license (Kansas 0539494, as entered in NPPES) on the Kansas State Board of Healing Arts; 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
1700106168
Name
Joshua David Korosac
Credential
D.O.
Primary taxonomy
Emergency Medical Services (Emergency Medicine) Physician 207PE0004X
License number
0539494 KS
Self-reported in NPPES; status is on the state search
Practice location
325 Maine St, Lawrence, KS 66044
Phone
(785) 505-5000
Enumerated
Jun 8, 2010
Record last updated
Feb 28, 2017 (not updated in 9 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20170111000843); accepts Medicare assignment
Medical or professional school
Oklahoma State University College Of Osteopathic Medicine, 2010
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 325 Maine St

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

  1. Carl Anschutz, MDHospitalist Physician1427270750
  2. Alaina BalesStudent in an Organized Health Care Education/Training Program1619824877
  3. Britani BaxterPhysical Therapy Assistant1508448754
  4. Karen Bayouth, PTPhysical Therapist1558576959
  5. Katelyn Beachner, PHARMDPharmacist1336646264
  6. Matthew BleichPharmacist1639009822

Verify Joshua David Korosac in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersKansas State Board of Healing Arts
    Search for license 0539494
    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 Kansas license search

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14% fewer Medicare Part D claims than the average emergency medical services (emergency medicine) physician in 2024

252 Medicare Part D claims for 171 beneficiaries, against an average of 292 among the 1,653 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 38 claims were for opioids.

  1. Joshua Korosac252
  2. Specialty average292

Most prescribed

  1. Ondansetron Odt40 claims
  2. Hydrocodone-Acetaminophen27 claims
  3. Prednisone26 claims
  4. Doxycycline Hyclate19 claims
  5. Cefpodoxime Proxetil15 claims
  6. Azithromycin13 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. Lawrence Emergency Medicine Associates,paLawrence, KS

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

Joshua David Korosac among 23 emergency medical services (emergency medicine) physician records in Kansas

Joshua David Korosac, D.O. is one of 23 emergency medical services (emergency medicine) physician records with a practice address in Kansas. 52% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 48% of them.

  • NPI issued2010 · 48% of these records are older, 43% newer
  • In a Medicare fileYes · 52% of these records are
  • In the CMS Doctors and Clinicians fileYes · 39% of these records are
  • Record last updated2017 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207PE0004X and a Kansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medical Services (Emergency Medicine) Physician providers in Kansas

There are 23 emergency medical services (emergency medicine) physician records in Kansas.

The 8 emergency medical services (emergency medicine) physician records with the nearest ZIP codes

  1. Toni Pittman, MDLawrence, KS 660441578660536
  2. George Speer, D.O.Leavenworth, KS 660481396888616
  3. Jonathan Heard, MDLawrence, KS 660491154333540
  4. Barbara Lomeli, MDOlathe, KS 660621609185958
  5. Joyce Grashoff, M.D.Kansas City, KS 661121568498897
  6. Emily Hyatt, D.O.Kansas City, KS 661121932132032
  7. Thomas Deskin, MDKansas City, KS 661601003815135
  8. Taylor Diederich, MDKansas City, KS 661601598407918

Common questions

What is Joshua David Korosac, D.O.'s NPI number?

Joshua David Korosac, D.O.'s National Provider Identifier (NPI) is 1700106168, issued on Jun 8, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Joshua David Korosac, D.O. located?

The NPPES record lists a practice address at 325 Maine St, Lawrence, KS, 66044. Phone: (785) 505-5000. Providers update this record themselves, so call before visiting.

How can I verify Joshua David Korosac, D.O.'s license?

NPPES lists Kansas license number 0539494, as entered by the provider. Search the Kansas State Board of Healing Arts at https://www.ksbha.ks.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Joshua David Korosac, D.O. prescribe under Medicare Part D?

In 2024, Joshua David Korosac, D.O. had 252 Medicare Part D claims for 171 beneficiaries; the average among emergency medical services (emergency medicine) physician prescribers was 292. 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.