NPPES file of Aug 9, 2026

Donald K. Yang, MD

Gastroenterology Physician · Springfield, OR

Donald K. Yang, MD is a gastroenterology physician with a practice address in Springfield, Oregon, and NPI 1023037306, issued on Jul 18, 2006. Check the license (Oregon MD24898, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1023037306
Name
Donald K. Yang
Credential
MD
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
MD24898 OR
Self-reported in NPPES; status is on the state search
Practice location
3355 Riverbend Dr, Springfield, OR 97477
Phone
(541) 868-9500
Enumerated
Jul 18, 2006
Record last updated
Dec 9, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(541) 685-5920
Medicaid ID
275113 OR
Medicare enrollment
Enrolled (PECOS I20040423000861); accepts Medicare assignment
Medical or professional school
Perelman School Of Med At The University Of Pennsylvania, 1998
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3355 Riverbend Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Janet Adee, RDRegistered Dietitian1376886143
  2. Khuram Ameen, M.D.Pulmonary Disease Physician1881600450
  3. Keith Balderston, MDMaternal & Fetal Medicine Physician1871525337
  4. Sara Batya, M.D.Neurology Physician1801084116
  5. Robert Carolan, M.D.Pulmonary Disease Physician1578570719
  6. Craig Chamberlain, MDGastroenterology Physician1598784928

Verify Donald K. Yang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD24898
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Oregon license search

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58% more Medicare Part D claims than the average gastroenterology physician in 2024

1,285 Medicare Part D claims for 590 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.

  1. Donald Yang1,285
  2. Specialty average811

Most prescribed

  1. Peg 3350-Electrolyte286 claims
  2. Sod Sulf-Potass Sulf-Mag Sulf90 claims
  3. Omeprazole86 claims
  4. Pantoprazole Sodium62 claims
  5. Famotidine60 claims
  6. Mesalamine44 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: $220.94

10 payments; by number, the most common kind was food and beverage; the largest payer was Braintree Laboratories, 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.

  1. Donald Yang$220.94
  2. Specialty average$5,015.95

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

  1. Eugene Gastroenterology Consultants PCSpringfield, OR

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Donald K. Yang among 281 gastroenterology physician records in Oregon

Donald K. Yang, MD is one of 281 gastroenterology physician records with a practice address in Oregon. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 20% of them.

  • NPI issued2006 · 20% of these records are older, 45% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated1998 · median 2003 among the 201 with a school on file
  • Record last updated2008 · 45% 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 Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Oregon

There are 281 gastroenterology physician records in Oregon.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Craig Chamberlain, MDSpringfield, OR 974771598784928
  2. Ryan De Lee, MDSpringfield, OR 974771104920693
  3. Paul Evans, M.D.Springfield, OR 974771962480871
  4. Jonathan Gonenne, MDSpringfield, OR 974771649299538
  5. Peter Grubel, MDSpringfield, OR 974771376531335
  6. Peter Kay, MDSpringfield, OR 974771710906177
  7. Gregory Knecht, MDSpringfield, OR 974771598785578
  8. Christianne Kratka, MDSpringfield, OR 974771851310130

Common questions

What is Donald K. Yang, MD's NPI number?

Donald K. Yang, MD's National Provider Identifier (NPI) is 1023037306, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Donald K. Yang, MD located?

The NPPES record lists a practice address at 3355 Riverbend Dr, Springfield, OR, 97477. Phone: (541) 868-9500. Providers update this record themselves, so call before visiting.

How can I verify Donald K. Yang, MD's license?

NPPES lists Oregon license number MD24898, 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 Donald K. Yang, MD prescribe under Medicare Part D?

In 2024, Donald K. Yang, MD had 1,285 Medicare Part D claims for 590 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.