David Chiang, MD, PHD
Gastroenterology Physician · Rochester, MN
David Chiang, MD, PHD is a gastroenterology physician with a practice address in Rochester, Minnesota, and NPI 1457856155, issued on Mar 26, 2018. Check the license (Minnesota 70804, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- David Chiang
- Credential
- MD, PHD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 70804 MN
Self-reported in NPPES; status is on the state search - Practice location
- 200 1St St SW, Rochester, MN 55905
- Phone
- (507) 284-2511
- Enumerated
- Mar 26, 2018
- Record last updated
- Dec 29, 2025
- Medicare enrollment
- Enrolled (PECOS I20220521000030); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 457 in Minnesota → Look up another NPI →
Also registered at 200 1St St SW
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify David Chiang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 70804Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average gastroenterology physician in 2024
174 Medicare Part D claims for 34 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Omeprazole20 claims
- Prednisone14 claims
- Carvedilol13 claims
- Cholestyramine12 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: $121.31
3 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, 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
- Mayo ClinicRochester, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Chiang among 457 gastroenterology physician records in Minnesota
David Chiang, MD, PHD is one of 457 gastroenterology physician records with a practice address in Minnesota. 81% 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 86% of them.
- NPI issued2018 · 86% of these records are older, 11% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated2018 · median 2006 among the 334 with a school on file
- Record last updated2025 · 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 207RG0100X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
192 gastroenterology physician records list a practice address in Rochester
They are 192 of the 12,854 NPPES records with a practice address in Rochester, and 457 gastroenterology physician records in Minnesota.
All 457 in Minnesota → Every provider in Rochester → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Jeffrey Alexander, M.D.Rochester, MN 559051306822028
- Glenn Alexander, M.D.Rochester, MN 559051982680989
- Navtej Buttar, M.D.Rochester, MN 559051568449247
- Michael Camilleri, M.D.Rochester, MN 559051700862109
- Peter Carryer, M.D.Rochester, MN 559051780660779
- Jonathan Clain, M.D.Rochester, MN 559051841276862
- Gianrico Farrugia, MDRochester, MN 559051285610469
- Gregory Gores, M.D.Rochester, MN 559051336126861
Common questions
What is David Chiang, MD, PHD's NPI number?
David Chiang, MD, PHD's National Provider Identifier (NPI) is 1457856155, issued on Mar 26, 2018. An NPI identifies a provider in billing; it is not a license.
Where is David Chiang, MD, PHD located?
The NPPES record lists a practice address at 200 1St St SW, Rochester, MN, 55905. Phone: (507) 284-2511. Providers update this record themselves, so call before visiting.
How can I verify David Chiang, MD, PHD's license?
NPPES lists Minnesota license number 70804, 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 David Chiang, MD, PHD prescribe under Medicare Part D?
In 2024, David Chiang, MD, PHD had 174 Medicare Part D claims for 34 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.