Joseph Yun Jo Chang, MD
Gastroenterology Physician · Denver, CO
Joseph Yun Jo Chang, MD is a gastroenterology physician with a practice address in Denver, Colorado, and NPI 1417968256, issued on Aug 10, 2006. Check the license (Colorado DR.0070441, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- Joseph Yun Jo Chang
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- DR.0070441 CO
MD60212074 WA
Self-reported in NPPES; status is on the state search - Practice location
- 777 Bannock St # MC3240, Denver, CO 80204
- Phone
- (303) 436-6000
- Enumerated
- Aug 10, 2006
- Record last updated
- Aug 9, 2023
- Medicaid IDs
- 9000214279 CO
2013233 WA - Medicare enrollment
- Enrolled (PECOS I20231024001165); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 777 Bannock St # MC3240
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Joseph Yun Jo Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license DR.0070441Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average gastroenterology physician in 2024
67 Medicare Part D claims for 38 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Pantoprazole Sodium32 claims
- Esomeprazole Magnesium14 claims
- Omeprazole11 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.
Industry payments in 2024: $81.68
1 payment: food and beverage; the largest payer was Phathom Pharmaceuticals, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Altru Health SystemGrand Forks, ND
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gastroenterology Physician providers in Colorado
There are 334 gastroenterology physician records in Colorado.
Other gastroenterology physician records in Colorado
- David Adams, MDUsaf Academy, CO1477521011
- Douglas Adler, M.D.Colorado Springs, CO1891748687
- Abdullah Al-ShahraniAurora, CO1033598297
- Bader Alajlan, M.B.B.SAurora, CO1326392291
- Sam Anouna, M.D.Thornton, CO1639119365
- Kevin Ashby, M.D.Durango, CO1245209907
- Augustin Attwell, MDLakewood, CO1275620304
- Gregory Austin, MDAurora, CO1750503876
- Camille Azar, M.D.Pueblo, CO1265477046
- Arash Babaei, M.D.Denver, CO1598716482
Common questions
What is Joseph Yun Jo Chang, MD's NPI number?
Joseph Yun Jo Chang, MD's National Provider Identifier (NPI) is 1417968256, issued on Aug 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joseph Yun Jo Chang, MD located?
The NPPES record lists a practice address at 777 Bannock St # MC3240, Denver, CO, 80204. Phone: (303) 436-6000. Providers update this record themselves, so call before visiting.
How can I verify Joseph Yun Jo Chang, MD's license?
NPPES lists Colorado license number DR.0070441, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Joseph Yun Jo Chang, MD prescribe under Medicare Part D?
In 2024, Joseph Yun Jo Chang, MD had 67 Medicare Part D claims for 38 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.