Quick answers
- Does Corey T. Welchlin accept Medicare assignment?
- Yes. Medicare's clinician data says Corey T. Welchlin 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 Corey T. Welchlin see?
- In 2024, CMS data shows 121 Original Medicare patients and 810 services for Corey T. Welchlin. This counts Original Medicare only and measures volume, not quality.
- What is Corey T. Welchlin's NPI number?
- 1649241977. 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 Corey T. Welchlin, 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 | 121 |
|---|---|
| Services billed to Medicare | 810 |
| Different services or procedures | 112 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)110 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)84 services
- X-ray of spine, 1 view (72020)54 services
- Injection, dexamethasone sodium phosphate, 1 mg (J1100)44 services
- Aspiration and/or injection of fluid from large joint (20610)27 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 pressure69%
- Arthritis59%
- High cholesterol55%
- Diabetes26%
- Anxiety25%
- Chronic kidney disease25%
Hospitals where Corey T. Welchlin works
Medicare's Facility Affiliation Data lists Corey T. Welchlin 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.
- Mayo Clinic Health System - FairmontFairmont, MN · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 240166
- MC Donough District HospitalMacomb, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140089
- Memorial HospitalCarthage, IL · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 141305
- United Hospital DistrictBlue Earth, MN · Critical Access Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 241369
Practice locations
Addresses where Corey T. Welchlin is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 11; the Medicare profile lists all.
- 110 E Market StColchester, IL 62326 (217) 357‑2173
- 115 N Main StBuffalo Center, IA 50424 (641) 562‑2300
- 1454 N Co Rd 2050Carthage, IL 62321
- 1454 N Co Rd 2050, PO Box 160Carthage, IL 62321
- 1454 N County RdCarthage, IL 62321 (217) 357‑8500
Group practices
Medicare enrollment lists Corey T. Welchlin as a member of these groups (CMS data updated October 2, 2026).
- McDonough County Hospital District43 clinicians in the group
- Memorial Hospital Association40 clinicians in the group
- Fairmont Orthopedics and Sports Medicine, PA5 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Other clinicians in McDonough County Hospital District
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 1985 (41 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1649241977 |
| 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