Ian Tsun
Emergency Medicine Physician · Cleveland, OH
Ian Tsun is an emergency medicine physician with a practice address in Cleveland, Ohio, and NPI 1083282016, issued on Jun 15, 2021. Check the license on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Ian Tsun
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A188842 CA
Self-reported in NPPES; status is on the state search - Practice location
- 10900 Euclid Ave, Cleveland, OH 44106
- Phone
- (111) 111-1111
- Enumerated
- Jun 15, 2021
- Record last updated
- Jul 8, 2025
- Medicare enrollment
- Enrolled (PECOS I20250110001809); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,002 in Ohio → Look up another NPI →
Also registered at 10900 Euclid Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Asma Abukar, PA-CPhysician Assistant1114650645
- Taylor AdelsonCritical Care Medicine Registered Nurse1194554345
- Maritza AguirreStudent in an Organized Health Care Education/Training Program1669307906
- Fathema AhmedStudent in an Organized Health Care Education/Training Program1366378291
- Christelle Ajifack BassoCritical Care Medicine Registered Nurse1699668822
- Mazen Alaref, DDSPediatric Dentistry1053274902
Verify Ian Tsun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of OhioCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average emergency medicine physician in 2024
88 Medicare Part D claims for 59 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Cephalexin15 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
- Emergency Physicians Associates San Jose PCSan Jose, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ian Tsun among 3,002 emergency medicine physician records in Ohio
Ian Tsun is one of 3,002 emergency medicine physician records with a practice address in Ohio. 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 2021, is newer than 88% of them.
- NPI issued2021 · 88% of these records are older, 8% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2022 · median 2013 among the 1,720 with a school on file
- Record last updated2025 · 60% 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 Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in Ohio
There are 3,002 emergency medicine physician records in Ohio.
All 3,002 in Ohio → Every provider in Cleveland → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Henedine Aquino, M.D.Cleveland, OH 441061033166715
- Barry Brenner, MDCleveland, OH 441061659463842
- Marion Carroll, MDCleveland, OH 441061568425668
- David Cheng, MDCleveland, OH 441061114960630
- Dennis Guy, MDCleveland, OH 441061649384959
- Rafi Israeli, MDCleveland, OH 441061629163621
- Susan Schardt, MDCleveland, OH 441061346259983
- Robert Smarsch, DOCleveland, OH 441061518913649
Common questions
What is Ian Tsun's NPI number?
Ian Tsun's National Provider Identifier (NPI) is 1083282016, issued on Jun 15, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Ian Tsun located?
The NPPES record lists a practice address at 10900 Euclid Ave, Cleveland, OH, 44106. Phone: (111) 111-1111. Providers update this record themselves, so call before visiting.
How can I verify Ian Tsun's license?
Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ian Tsun prescribe under Medicare Part D?
In 2024, Ian Tsun had 88 Medicare Part D claims for 59 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.