Quick answers
- Does Ernest G. Buchanan Iv accept Medicare assignment?
- Yes. Medicare's clinician data says Ernest G. Buchanan Iv 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 Ernest G. Buchanan Iv see?
- In 2024, CMS data shows 512 Original Medicare patients and 11,000 services for Ernest G. Buchanan Iv. This counts Original Medicare only and measures volume, not quality.
- What is Ernest G. Buchanan Iv's NPI number?
- 1720088974. 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 Ernest G. Buchanan Iv, 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 | 512 |
|---|---|
| Services billed to Medicare | 11,000 |
| Different services or procedures | 115 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Injection, methylprednisolone acetate, 1 mg (J1010)3,920 services
- Insertion of needle into vein for collection of blood sample (36415)813 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)671 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)660 services
- Blood test, comprehensive group of blood chemicals (80053)508 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 cholesterol74%
- Arthritis41%
- Diabetes31%
- Ischemic heart disease26%
- Anxiety21%
Hospitals where Ernest G. Buchanan Iv works
Medicare's Facility Affiliation Data lists Ernest G. Buchanan Iv 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.
- Cookeville Regional Medical CenterCookeville, TN · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 440059
- Cumberland Medical CenterCrossville, TN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 440009
Practice locations
Addresses where Ernest G. Buchanan Iv is enrolled with Medicare (CMS data updated October 2, 2026).
- 1101 Neal StCookeville, TN 38501 (931) 528‑7797
Group practices
Medicare enrollment lists Ernest G. Buchanan Iv as a member of this group (CMS data updated October 2, 2026).
- Summit Medical Group, PLLC652 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Cookeville
Clinicians with the same Medicare primary specialty in Cookeville, TN — not a recommendation.
Other clinicians in Summit Medical Group, PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Tennessee, Hsc, College Of Medicine |
| Graduation year | 1996 (30 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1720088974 |
| 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