NPPES file of Aug 9, 2026

Christopher Owen Thomas, M.D.

Nephrology Physician · Milwaukie, OR

Christopher Owen Thomas, M.D. is a nephrology physician with a practice address in Milwaukie, Oregon, and NPI 1821106410, issued on Aug 25, 2006. Check the license (Oregon MD20617, 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
1821106410
Name
Christopher Owen Thomas
Credential
M.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License numbers
MD20617 OR
MD00037657 WA
Self-reported in NPPES; status is on the state search
Practice location
6902 SE Lake RD Ste 100, Milwaukie, OR 97267
Phone
(503) 786-1600
Enumerated
Aug 25, 2006
Record last updated
Feb 4, 2022
Medicare enrollment
Enrolled (PECOS I20080114000258); accepts Medicare assignment
Medical or professional school
University Of Kansas School Of Med (Kc/Wich/Sal), 1995
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 6902 SE Lake RD Ste 100

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

  1. Pei-Li Wang, M.D.Nephrology Physician1891801429

Verify Christopher Owen Thomas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD20617
    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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2% more Medicare Part D claims than the average nephrology physician in 2024

1,500 Medicare Part D claims for 250 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.

  1. Christopher Thomas1,500
  2. Specialty average1,465

Most prescribed

  1. Losartan Potassium124 claims
  2. Carvedilol94 claims
  3. Amlodipine Besylate87 claims
  4. Lisinopril87 claims
  5. Furosemide84 claims
  6. Potassium Chloride60 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.

Bills Medicare through one group practice

  1. Kaiser Foundation Health Plan OF The NorthwestMilwaukie, OR

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

Christopher Owen Thomas among 136 nephrology physician records in Oregon

Christopher Owen Thomas, M.D. is one of 136 nephrology physician records with a practice address in Oregon. 83% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 54% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated1995 · median 2003 among the 92 with a school on file
  • Record last updated2022 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in Oregon

There are 136 nephrology physician records in Oregon.

The 8 nephrology physician records with the nearest ZIP codes

  1. Susan Kauffman, M.D.Milwaukie, OR 972671679665327
  2. Leah Swetnam, MDMilwaukie, OR 972671093835332
  3. Micah Thorp, DOMilwaukie, OR 972671912010893
  4. Mindy Tseng, M.D.Milwaukie, OR 972671922386895
  5. Pei-Li Wang, M.D.Milwaukie, OR 972671891801429
  6. Cathryn Wise, MDMilwaukie, OR 972671306959127
  7. Joshua Curry, MD, PHDPortland, OR 972391043848203
  8. Peter Fong, MD, PHARMDPortland, OR 972391215217781

Common questions

What is Christopher Owen Thomas, M.D.'s NPI number?

Christopher Owen Thomas, M.D.'s National Provider Identifier (NPI) is 1821106410, issued on Aug 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Christopher Owen Thomas, M.D. located?

The NPPES record lists a practice address at 6902 SE Lake RD Ste 100, Milwaukie, OR, 97267. Phone: (503) 786-1600. Providers update this record themselves, so call before visiting.

How can I verify Christopher Owen Thomas, M.D.'s license?

NPPES lists Oregon license number MD20617, 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 Christopher Owen Thomas, M.D. prescribe under Medicare Part D?

In 2024, Christopher Owen Thomas, M.D. had 1,500 Medicare Part D claims for 250 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.