Quick answers
- Does Donald L. Chaffin Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says Donald L. Chaffin Jr. 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 Donald L. Chaffin Jr. see?
- In 2024, CMS data shows 107 Original Medicare patients and 241 services for Donald L. Chaffin Jr.. This counts Original Medicare only and measures volume, not quality.
- What is Donald L. Chaffin Jr.'s NPI number?
- 1902849912. 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 Donald L. Chaffin Jr., 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 | 107 |
|---|---|
| Services billed to Medicare | 241 |
| Different services or procedures | 35 |
| Participating Medicare provider | Yes |
| Average age of these patients | 69 |
Most frequent services
- Urinalysis, manual test (81002)45 services
- X-ray of chest, 2 views (71046)29 services
- Routine electrocardiogram (ecg) using at least 12 leads with tracing (93005)25 services
- Detection test by immunoassay with direct visual observation for influenza virus (87804)18 services
- Blood glucose (sugar) test performed by hand-held instrument (82962)12 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 cholesterol57%
- Arthritis46%
- Anxiety39%
- COPD36%
- Diabetes32%
Hospitals where Donald L. Chaffin Jr. works
Medicare's Facility Affiliation Data lists Donald L. Chaffin Jr. 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.
- Highlands Arh Regional Medical CenterPrestonsburg, KY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 180005
- King's Daughters' Medical CenterAshland, KY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 180009
- Three Rivers Medical CenterLouisa, KY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 180128
Practice locations
Addresses where Donald L. Chaffin Jr. is enrolled with Medicare (CMS data updated October 2, 2026).
- 64 Kirk PlzInez, KY 41224 (606) 298‑2520
Group practices
Medicare enrollment lists Donald L. Chaffin Jr. as a member of this group (CMS data updated October 2, 2026).
- Martin County Rural Health Clinic PLLC9 clinicians in the group
Specialties
- General Practiceprimary
Other general practitioners in Kentucky
Clinicians with the same Medicare primary specialty in Kentucky — not a recommendation.
Other clinicians in Martin County Rural Health Clinic PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1982 (44 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1902849912 |
| 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