Quick answers
- Does Ian L. Carroll accept Medicare assignment?
- Yes. Medicare's clinician data says Ian L. Carroll 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 Ian L. Carroll see?
- In 2024, CMS data shows 261 Original Medicare patients and 559 services for Ian L. Carroll. This counts Original Medicare only and measures volume, not quality.
- What is Ian L. Carroll's NPI number?
- 1437105400. 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 Ian L. Carroll, 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 | 261 |
|---|---|
| Services billed to Medicare | 559 |
| Different services or procedures | 11 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)342 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)118 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)29 services
- Hospital discharge day management, more than 30 minutes (99239)23 services
- Critical care, first 30-74 minutes (99291)21 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%
- Heart failure56%
- Chronic kidney disease54%
- Ischemic heart disease53%
- Depression53%
Hospitals where Ian L. Carroll works
Medicare's Facility Affiliation Data lists Ian L. Carroll 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.
- Creek Nation Community HospitalOkemah, OK · Critical Access Hospital · Emergency services: listed by Medicare · CCN 371333
- Northeastern Health SystemTahlequah, OK · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 370089
- Saint Francis Hospital MuskogeeMuskogee, OK · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 370025
- Saint Francis Hospital South, LLCTulsa, OK · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 370218
- Saint Francis Hospital, IncTulsa, OK · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 370091
Practice locations
Addresses where Ian L. Carroll is enrolled with Medicare (CMS data updated October 2, 2026).
- 6161 S Yale AveTulsa, OK 74136 (918) 502‑4720
Group practices
Medicare enrollment lists Ian L. Carroll as a member of this group (CMS data updated October 2, 2026).
- Warren Clinic Inc883 clinicians in the group
Specialties
- Hospitalistprimary
Other hospitalists in Tulsa
Clinicians with the same Medicare primary specialty in Tulsa, OK — not a recommendation.
Other clinicians in Warren Clinic Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Washington School Of Medicine |
| Graduation year | 2001 (25 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1437105400 |
| 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