NPPES file of Aug 9, 2026

Kun Ding

Ophthalmology Physician · Portland, OR

Kun Ding is an ophthalmology physician with a practice address in Portland, Oregon, and NPI 1922637503, issued on Apr 5, 2020. Check the license (Oregon MD219271, 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
1922637503
Name
Kun Ding
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
MD219271 OR
Self-reported in NPPES; status is on the state search
Practice location
9555 SW Barnes RD Ste 100, Portland, OR 97225
Phone
(503) 227-2020
Enumerated
Apr 5, 2020
Record last updated
Jul 18, 2025
Fax
(503) 296-9934
Medicare enrollment
Enrolled (PECOS I20240401002777); accepts Medicare assignment
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 9555 SW Barnes RD Ste 100

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

  1. Marco Arandia, OD STUDENTOptometrist1598469835
  2. Elizabeth Donohue, MDOphthalmology Physician1316941917
  3. Tyler Etheridge, MDOphthalmology Physician1518595958
  4. Natalie Jacobson-Dunlop, MS, CNMAdvanced Practice Midwife1598934689

Verify Kun Ding in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD219271
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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56% fewer Medicare Part D claims than the average ophthalmology physician in 2024

674 Medicare Part D claims for 142 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 38% of claims.

  1. Kun Ding674
  2. Specialty average1,518

Most prescribed

  1. Latanoprost165 claims
  2. Brimonidine Tartrate88 claims
  3. Dorzolamide-Timolol65 claims
  4. Rhopressa54 claims
  5. Prednisolone Acetate46 claims
  6. Dorzolamide Hcl42 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: $1,996.74

12 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Kun Ding$1,996.74
  2. Specialty average$4,535.02

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Eye Health Northwest PCPortland, OR
  2. Legacy Good Samaritan Hospital And Medical CenterPortland, OR

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

Kun Ding among 322 ophthalmology physician records in Oregon

Kun Ding is one of 322 ophthalmology physician records with a practice address in Oregon. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 93% of them.

  • NPI issued2020 · 93% of these records are older, 3% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2012 · median 2007 among the 189 with a school on file
  • Record last updated2025 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in Oregon

There are 322 ophthalmology physician records in Oregon.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Martin Balish, MDPortland, OR 972251548262173
  2. Tyler Boulter, MDPortland, OR 972251730683970
  3. Daniel Brown, MDPortland, OR 972251093717597
  4. Gilbert Child, MDPortland, OR 972251205838877
  5. Kelly Chung, MDPortland, OR 972251760418743
  6. Elizabeth Donohue, MDPortland, OR 972251316941917
  7. Tyler Etheridge, MDPortland, OR 972251518595958
  8. Thomas Lindgren, M.D.Portland, OR 972251063541381

Common questions

What is Kun Ding's NPI number?

Kun Ding's National Provider Identifier (NPI) is 1922637503, issued on Apr 5, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Kun Ding located?

The NPPES record lists a practice address at 9555 SW Barnes RD Ste 100, Portland, OR, 97225. Phone: (503) 227-2020. Providers update this record themselves, so call before visiting.

How can I verify Kun Ding's license?

NPPES lists Oregon license number MD219271, 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 Kun Ding prescribe under Medicare Part D?

In 2024, Kun Ding had 674 Medicare Part D claims for 142 beneficiaries; the average among ophthalmology physician prescribers was 1,518. 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.