Quick answers
- Does Thomas W. Alderson Ii accept Medicare assignment?
- Yes. Medicare's clinician data says Thomas W. Alderson Ii accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Thomas W. Alderson Ii see?
- In 2024, CMS data shows 950 Original Medicare patients and 4,573 services for Thomas W. Alderson Ii. This counts Original Medicare only and measures volume, not quality.
- What is Thomas W. Alderson Ii's NPI number?
- 1942404439. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Thomas W. Alderson Ii, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 950 |
|---|---|
| Services billed to Medicare | 4,573 |
| Different services or procedures | 42 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Injection, epoetin alfa-epbx, biosimilar, (retacrit) (for non-esrd use), 1000 units (Q5106)903 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)721 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)397 services
- Insertion of needle into vein for collection of blood sample (36415)326 services
- Dialysis services, 2-3 physician visits per month (20 years or older) (90961)256 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease75%
- Diabetes60%
- Arthritis48%
- Heart failure42%
Hospitals where Thomas W. Alderson Ii works
Medicare's Facility Affiliation Data lists Thomas W. Alderson Ii at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Ascension Via Christi Hospital Manhattan, IncManhattan, KS · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 170142
- Newman Regional HealthEmporia, KS · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 171384
- Stormont Vail Health Flint Hills, LLCJunction City, KS · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 170074
- Stormont Vail HospitalTopeka, KS · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 170086
- University of Kansas Health System - St Francis CampusTopeka, KS · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 170016
Practice locations
Addresses where Thomas W. Alderson Ii is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 14; the Medicare profile lists all.
- 1325 Research Park DrManhattan, KS 66502 (785) 270‑8723
- 1414 SW 8th AveTopeka, KS 66606 (785) 354‑5300
- 1500 SW 10h AveTopeka, KS 66604 (785) 354‑6000
- 1504 SW 8th Ave, Fl 1Topeka, KS 66606 (785) 354‑5623
- 1704 Commercial CirWamego, KS 66547 (785) 456‑2207
Group practices
Medicare enrollment lists Thomas W. Alderson Ii as a member of this group (CMS data updated October 2, 2026).
- Cotton-O'neil Clinic Revocable Trust666 clinicians in the group
Specialties
- Nephrologyprimary
- Internal Medicinealso
Other nephrologists in Kansas
Clinicians with the same Medicare primary specialty in Kansas — not a recommendation.
Other clinicians in Cotton-O'neil Clinic Revocable Trust
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Kansas School Of Med (kc/wich/sal) |
| Graduation year | 2007 (19 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1942404439 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians