Hyun Jun Cho, DO
Internal Medicine Physician · Portland, OR
Hyun Jun Cho, DO is an internal medicine physician with a practice address in Portland, Oregon, and NPI 1437747524, issued on Jan 5, 2021. Check the license (Oregon DO230128, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Hyun Jun Cho
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- DO230128 OR
Self-reported in NPPES; status is on the state search - Practice location
- 5050 NE Hoyt St Ste 454, Portland, OR 97213
- Phone
- (503) 215-6405
- Enumerated
- Jan 5, 2021
- Record last updated
- Jul 24, 2026
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,116 in Oregon → Look up another NPI →
Also registered at 5050 NE Hoyt St Ste 454
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Emma FischlerFamily Nurse Practitioner1669180642
- Logan Guckien, MDFamily Medicine Physician1649708710
- Marrett Hild, PA-CPhysician Assistant1437614997
Verify Hyun Jun Cho in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license DO230128Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average internal medicine physician in 2024
471 Medicare Part D claims for 76 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 23 claims were for opioids.
Most prescribed
- Gabapentin30 claims
- Atorvastatin Calcium27 claims
- Duloxetine Hcl24 claims
- Levothyroxine Sodium24 claims
- Omeprazole24 claims
- Lisinopril18 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.
Hyun Jun Cho among 2,116 internal medicine physician records in Oregon
Hyun Jun Cho, DO is one of 2,116 internal medicine physician records with a practice address in Oregon. 73% 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 91% of them.
- NPI issued2021 · 91% of these records are older, 7% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2026 · 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 207R00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
889 internal medicine physician records list a practice address in Portland
They are 889 of the 42,088 NPPES records with a practice address in Portland, and 2,116 internal medicine physician records in Oregon.
All 2,116 in Oregon → Every provider in Portland → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Andris Antoniskis, MDPortland, OR 972131528067972
- Shikha Arun, MDPortland, OR 972131306881834
- Christopher BaronePortland, OR 972131831187657
- Ruben Halperin, MDPortland, OR 972131457306763
- Kimberly Herder, MDPortland, OR 972131811975741
- Jeffrey Horacek, MDPortland, OR 972131790721215
- Shannon Jackson, MDPortland, OR 972131558301168
- William Kennedy, DOPortland, OR 972131467431452
Common questions
What is Hyun Jun Cho, DO's NPI number?
Hyun Jun Cho, DO's National Provider Identifier (NPI) is 1437747524, issued on Jan 5, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Hyun Jun Cho, DO located?
The NPPES record lists a practice address at 5050 NE Hoyt St Ste 454, Portland, OR, 97213. Phone: (503) 215-6405. Providers update this record themselves, so call before visiting.
How can I verify Hyun Jun Cho, DO's license?
NPPES lists Oregon license number DO230128, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Hyun Jun Cho, DO prescribe under Medicare Part D?
In 2024, Hyun Jun Cho, DO had 471 Medicare Part D claims for 76 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.