Michael Flowers, MD
NPI 1669409645 · Internal Medicine Physician · Knoxville, TN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Flowers, MD is a Internal Medicine Physician provider in Knoxville, TN (NPI 1669409645).
Provider details
- NPI number
- 1669409645
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 37097 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,149 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 686 | $72 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 166 | $74 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 147 | $109 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 86 | $158 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 48 | $105 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 16 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Tartrate | 54 | 30 |
| Furosemide | 49 | 23 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 39 | 17 |
| Amlodipine Besylate | 38 | 19 |
| Atorvastatin Calcium | 35 | 13 |
| Cefdinir | 33 | 33 |
| Lisinopril | 25 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$96 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-27
- Last updated
- 2011-05-27
Frequently asked questions
- What is Michael Flowers's NPI number?
- Michael Flowers's National Provider Identifier (NPI) is 1669409645, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Flowers's specialty?
- Michael Flowers is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Flowers located?
- Michael Flowers's practice location on file with NPPES is 2240 Sutherland Ave, Knoxville, TN 37919-2333.
- What is Michael Flowers's phone number?
- The practice phone number listed in the NPPES registry for Michael Flowers is (865) 909-0090.
- Does Michael Flowers accept Medicare?
- Michael Flowers is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Flowers's NPI active?
- Yes — Michael Flowers's NPI (1669409645) is active in the NPPES registry as of the last update on 2011-05-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.