NPPES file of Aug 9, 2026

Thomas W. Alderson, MD

Nephrology Physician · Topeka, KS

Thomas W. Alderson, MD is a nephrology physician with a practice address in Topeka, Kansas, and NPI 1942404439, issued on Jun 11, 2007. Check the license (Kansas 04-35001, as entered in NPPES) on the Kansas State Board of Healing Arts; 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
1942404439
Name
Thomas W. Alderson
Credential
MD
Primary taxonomy
Nephrology Physician 207RN0300X
License number
04-35001 KS
Self-reported in NPPES; status is on the state search
Practice location
823 SW Mulvane St, Topeka, KS 66606
Phone
(785) 270-8670
Enumerated
Jun 11, 2007
Record last updated
May 1, 2026
Fax
(785) 368-0478
Medicare enrollment
Enrolled (PECOS I20110726000429); accepts Medicare assignment
Medical or professional school
University Of Kansas School Of Med (Kc/Wich/Sal), 2007
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 823 SW Mulvane St

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

  1. Brock Alexander, MDAnesthesiology Physician1841634631
  2. Benjamin Andrews, CRNACertified Registered Nurse Anesthetist1619946803
  3. Michelle Andrews, CRNACertified Registered Nurse Anesthetist1023087210
  4. Martha Badger, APRNNurse Practitioner1891045779
  5. Brinton Baker, PA-CPhysician Assistant1649586470
  6. Partha Bhurtel, MDSurgery Physician1245518596

Verify Thomas W. Alderson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersKansas State Board of Healing Arts
    Search for license 04-35001
    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 Kansas 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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1% fewer Medicare Part D claims than the average nephrology physician in 2024

1,456 Medicare Part D claims for 297 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.

  1. Thomas Alderson1,456
  2. Specialty average1,465

Most prescribed

  1. Furosemide159 claims
  2. Amlodipine Besylate145 claims
  3. Carvedilol90 claims
  4. Losartan Potassium84 claims
  5. Calcium Acetate72 claims
  6. Lisinopril72 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. Cotton-O'Neil Clinic Revocable TrustManhattan, KS

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

Thomas W. Alderson among 70 nephrology physician records in Kansas

Thomas W. Alderson, MD is one of 70 nephrology physician records with a practice address in Kansas. 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 2007, is newer than 51% of them.

  • NPI issued2007 · 51% of these records are older, 33% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2007 · median 2001 among the 47 with a school on file
  • Record last updated2026 · 53% 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 Kansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in Kansas

There are 70 nephrology physician records in Kansas.

The 8 nephrology physician records with the nearest ZIP codes

  1. Dennis Artzer, MDTopeka, KS 666061497712491
  2. Lakshmi Duvvur, MDTopeka, KS 666061790877660
  3. Keelyn Ericson, MDTopeka, KS 666061952327553
  4. Vamsee Priya Marina, MDTopeka, KS 666061952567687
  5. Robert Porter, M.D.Topeka, KS 666061528009701
  6. Cory Sise, M.D.Topeka, KS 666061720020050
  7. Scott Solcher, MDTopeka, KS 666061831127455
  8. Fadi Bedros, M.D.Manhattan, KS 665021407893290

Common questions

What is Thomas W. Alderson, MD's NPI number?

Thomas W. Alderson, MD's National Provider Identifier (NPI) is 1942404439, issued on Jun 11, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Thomas W. Alderson, MD located?

The NPPES record lists a practice address at 823 SW Mulvane St, Topeka, KS, 66606. Phone: (785) 270-8670. Providers update this record themselves, so call before visiting.

How can I verify Thomas W. Alderson, MD's license?

NPPES lists Kansas license number 04-35001, as entered by the provider. Search the Kansas State Board of Healing Arts at https://www.ksbha.ks.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Thomas W. Alderson, MD prescribe under Medicare Part D?

In 2024, Thomas W. Alderson, MD had 1,456 Medicare Part D claims for 297 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.