Quick answers
- Does Hayden N. Hemphill accept Medicare assignment?
- Yes. Medicare's clinician data says Hayden N. Hemphill 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 Hayden N. Hemphill see?
- In 2024, CMS data shows 550 Original Medicare patients and 5,015 services for Hayden N. Hemphill. This counts Original Medicare only and measures volume, not quality.
- What is Hayden N. Hemphill's NPI number?
- 1396746376. 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 Hayden N. Hemphill, 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 | 550 |
|---|---|
| Services billed to Medicare | 5,015 |
| Different services or procedures | 72 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)486 services
- Dialysis services, 4 or more physician visits per month (20 years or older) (90960)374 services
- Manual urinalysis test with examination using microscope, automated (81001)306 services
- Insertion of needle into vein for collection of blood sample (36415)300 services
- Creatinine level to test for kidney function or muscle injury (82570)295 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%
- Diabetes66%
- Ischemic heart disease52%
- Heart failure52%
Hospitals where Hayden N. Hemphill works
Medicare's Facility Affiliation Data lists Hayden N. Hemphill 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.
- CHRISTUS St Michael Health SystemTexarkana, TX · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 450801
- Howard Memorial HospitalNashville, AR · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 041311
- McCurtain Memorial HospitalIdabel, OK · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 371342
Practice locations
Addresses where Hayden N. Hemphill is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.
- 1319 S Lynn LnIdabel, OK 74745 (580) 286‑1108
- 2400 Saint Michael DrTexarkana, TX 75503 (903) 614‑4440
- 2600 Saint Michael DrTexarkana, TX 75503 (903) 614‑5250
- 2830 Calder StBeaumont, TX 77702 (409) 892‑7171
- 5002 Cowhorn Creek RdTexarkana, TX 75503
Group practices
Medicare enrollment lists Hayden N. Hemphill as a member of these groups (CMS data updated October 2, 2026).
- CHRISTUS Trinity Clinic Texas1,540 clinicians in the group
- Collom and Carney Clinic Association51 clinicians in the group
Specialties
- Nephrologyprimary
Other nephrologists in Idabel
Clinicians with the same Medicare primary specialty in Idabel, OK — not a recommendation.
Other clinicians in CHRISTUS Trinity Clinic Texas
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Medical School At Houston |
| Graduation year | 1997 (29 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1396746376 |
| 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