Samuel Harris, MD
NPI 1821253899 · Internal Medicine Physician · Harriman, TN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Samuel Harris, MD is a Internal Medicine Physician provider in Harriman, TN (NPI 1821253899).
Provider details
- NPI number
- 1821253899
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 48753 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
788 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 209 | $72 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 177 | $109 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 135 | $105 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 129 | $159 |
| Critical Care, First 30-74 Minutes99291 | 89 | $195 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 49 | $74 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cefdinir | 68 | 68 |
| Prednisone | 59 | 57 |
| Furosemide | 35 | 35 |
| Doxycycline Hyclate | 34 | 34 |
| Potassium Chloride | 29 | 29 |
| Levofloxacin | 23 | 23 |
| Lisinopril | 23 | 23 |
| Clopidogrel Bisulfate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-07-18
- Last updated
- 2015-09-29
Frequently asked questions
- What is Samuel Harris's NPI number?
- Samuel Harris's National Provider Identifier (NPI) is 1821253899, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Samuel Harris's specialty?
- Samuel Harris is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Samuel Harris located?
- Samuel Harris's practice location on file with NPPES is 8045 Roane Medical Center Dr, Harriman, TN 37748-8333.
- What is Samuel Harris's phone number?
- The practice phone number listed in the NPPES registry for Samuel Harris is (865) 316-3375.
- Does Samuel Harris accept Medicare?
- Samuel Harris is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Samuel Harris's NPI active?
- Yes — Samuel Harris's NPI (1821253899) is active in the NPPES registry as of the last update on 2015-09-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.