Elliot Y. Koo, MD
Otolaryngology Physician · Duluth, MN
Elliot Y. Koo, MD is an otolaryngology physician with a practice address in Duluth, Minnesota, and NPI 1770088031, issued on Mar 28, 2018. Check the license (Minnesota 78441, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Elliot Y. Koo
- Credential
- MD
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License numbers
- 78441 MN
036.171677 IL
Self-reported in NPPES; status is on the state search - Practice location
- 400 E 3RD St, Duluth, MN 55805
- Phone
- (218) 786-8364
- Enumerated
- Mar 28, 2018
- Record last updated
- Dec 13, 2024
- Medicare enrollment
- Enrolled (PECOS I20241219001028); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 221 in Minnesota → Look up another NPI →
Also registered at 400 E 3RD St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Peter Aas, MDHospitalist Physician1063455848
- Amina Adil, MDCardiovascular Disease Physician1336482314
- Rahul Aggarwal, M.D.Pediatric Critical Care Medicine Physician1336198332
- Olubisi Akinseloyin, MDHospitalist Physician1619309010
- Glenn Albin, M.DCardiovascular Disease Physician1902851116
- David AlexanderDiagnostic Radiology Physician1932135936
Verify Elliot Y. Koo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 78441Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average otolaryngology physician in 2024
12 Medicare Part D claims, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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
- Midwest Ent Alliance PLLCOrland Park, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Elliot Y. Koo among 221 otolaryngology physician records in Minnesota
Elliot Y. Koo, MD is one of 221 otolaryngology physician records with a practice address in Minnesota. 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 2018, is newer than 88% of them.
- NPI issued2018 · 88% of these records are older, 10% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2018 · median 2006 among the 155 with a school on file
- Record last updated2024 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in Minnesota
There are 221 otolaryngology physician records in Minnesota.
All 221 in Minnesota → Every provider in Duluth → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- David Choquette, MDDuluth, MN 558051609857101
- Andrew Davis, M.D.Duluth, MN 558051750795670
- Todd Freeman, MDDuluth, MN 558051639150147
- Robert Gruhl, MDDuluth, MN 558051962909549
- Sarah ImmelmanDuluth, MN 558051326524455
- Timothy King, M.D.Duluth, MN 558051992758114
- Heidi L'Esperance, M.D.Duluth, MN 558051639582273
- William PortillaDuluth, MN 558051649215674
Common questions
What is Elliot Y. Koo, MD's NPI number?
Elliot Y. Koo, MD's National Provider Identifier (NPI) is 1770088031, issued on Mar 28, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Elliot Y. Koo, MD located?
The NPPES record lists a practice address at 400 E 3RD St, Duluth, MN, 55805. Phone: (218) 786-8364. Providers update this record themselves, so call before visiting.
How can I verify Elliot Y. Koo, MD's license?
NPPES lists Minnesota license number 78441, as entered by the provider. Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Elliot Y. Koo, MD prescribe under Medicare Part D?
In 2024, Elliot Y. Koo, MD had 12 Medicare Part D claims; the average among otolaryngology physician prescribers was 541. 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.