Edgar Diaz, M.D.
NPI 1598912701 · Internal Medicine Physician · Knoxville, TN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Edgar Diaz, M.D. is a Internal Medicine Physician provider in Knoxville, TN (NPI 1598912701).
Provider details
- NPI number
- 1598912701
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- NOT YET GIVEN (TN)
Specialties & taxonomies
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
770 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 | 229 | $72 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 226 | $109 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 164 | $105 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 125 | $159 |
| Critical Care, First 30-74 Minutes99291 | 14 | $194 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 12 | $75 |
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 | 96 | 93 |
| Prednisone | 62 | 57 |
| Pantoprazole Sodium | 34 | 34 |
| Doxycycline Hyclate | 31 | 30 |
| Cephalexin | 21 | 21 |
| Levofloxacin | 17 | 17 |
| Bumetanide | 17 | 15 |
| Apixabanbrand: Eliquis |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-08-20
- Last updated
- 2008-08-20
Frequently asked questions
- What is Edgar Diaz's NPI number?
- Edgar Diaz's National Provider Identifier (NPI) is 1598912701, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Edgar Diaz's specialty?
- Edgar Diaz is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Edgar Diaz located?
- Edgar Diaz's practice location on file with NPPES is 131 S Central St, Knoxville, TN 37902-1011.
- What is Edgar Diaz's phone number?
- The practice phone number listed in the NPPES registry for Edgar Diaz is (312) 560-9427.
- Does Edgar Diaz accept Medicare?
- Edgar Diaz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Edgar Diaz's NPI active?
- Yes — Edgar Diaz's NPI (1598912701) is active in the NPPES registry as of the last update on 2008-08-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.