Quick answers
- Does Joseph Merriman accept Medicare assignment?
- Yes. Medicare's clinician data says Joseph Merriman 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 Merriman see?
- In 2024, CMS data shows 513 Original Medicare patients and 84,454 services for Joseph Merriman. This counts Original Medicare only and measures volume, not quality.
- What is Joseph Merriman's NPI number?
- 1669714226. 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 Merriman, 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 | 513 |
|---|---|
| Services billed to Medicare | 84,454 |
| Different services or procedures | 153 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Injection, pembrolizumab, 1 mg (J9271)9,800 services
- Injection, darbepoetin alfa, 1 microgram (non-esrd use) (J0881)5,240 services
- Injection, paclitaxel, 1 mg (J9267)3,971 services
- Injection, daratumumab, 10 mg and hyaluronidase-fihj (J9144)3,960 services
- Injection, denosumab, 1 mg (J0897)3,360 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%
- Arthritis51%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)42%
- Chronic kidney disease41%
- Diabetes35%
Hospitals where Joseph Merriman works
Medicare's Facility Affiliation Data lists Joseph Merriman 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.
- Ascension Saint Thomas HospitalNashville, TN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 440082
- Tristar Centennial Medical CenterNashville, TN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 440161
Practice locations
Addresses where Joseph Merriman is enrolled with Medicare (CMS data updated October 2, 2026).
- 2004 Hayes St, Suite 350Nashville, TN 37203 (615) 312‑3333
- 820 N Thompson LnMurfreesboro, TN 37129
Group practices
Medicare enrollment lists Joseph Merriman as a member of these groups (CMS data updated October 2, 2026).
- Select Physical Therapy Holdings Inc2,024 clinicians in the group
- Tennessee Oncology PLLC358 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Nashville
Clinicians with the same Medicare primary specialty in Nashville, TN — not a recommendation.
Other clinicians in Select Physical Therapy Holdings Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2013 (13 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1669714226 |
| 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