Quick answers
- Does Joseph A. Koon Ii accept Medicare assignment?
- Yes. Medicare's clinician data says Joseph A. Koon 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 Joseph A. Koon Ii see?
- In 2024, CMS data shows 56 Original Medicare patients and 268 services for Joseph A. Koon Ii. This counts Original Medicare only and measures volume, not quality.
- What is Joseph A. Koon Ii's NPI number?
- 1922687649. 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 Joseph A. Koon 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 | 56 |
|---|---|
| Services billed to Medicare | 268 |
| Different services or procedures | 28 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Insertion of needle into vein for collection of blood sample (36415)42 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)41 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)34 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)21 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)19 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 cholesterol71%
- Arthritis43%
- Ischemic heart disease38%
- Diabetes32%
- Atrial fibrillation25%
Hospitals where Joseph A. Koon Ii works
Medicare's Facility Affiliation Data lists Joseph A. Koon 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.
- Baptist Health Medical Center-Little RockLittle Rock, AR · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 040114
- Saline Memorial HospitalBenton, AR · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 040084
Practice locations
Addresses where Joseph A. Koon Ii is enrolled with Medicare (CMS data updated October 2, 2026).
- 819 W Carpenter St, Benton Family ClinicBenton, AR 72015 (501) 778‑8264
Group practices
Medicare enrollment lists Joseph A. Koon Ii as a member of this group (CMS data updated October 2, 2026).
- Arkansas Health Group659 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Benton
Clinicians with the same Medicare primary specialty in Benton, AR — not a recommendation.
Other clinicians in Arkansas Health Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2021 (5 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1922687649 |
| 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