Michael Diaz, M.D.
NPI 1427040021 · Gastroenterology Physician · Hendersonville, TN
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Diaz, M.D. is a Gastroenterology Physician provider in Hendersonville, TN (NPI 1427040021).
Provider details
- NPI number
- 1427040021
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD16303 (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
20 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
262 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) |
|---|---|---|
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 69 | $237 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 57 | $64 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 44 | $120 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 39 | $86 |
| Balloon Dilation of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope, Less Than 3.0 Cm43249 | 23 | $112 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 117 | 57 |
| Pantoprazole Sodium | 53 | 25 |
| Linaclotidebrand: Linzess | 16 | — |
| Esomeprazole Magnesium | 15 | — |
| Diphenoxylate Hcl/Atropinebrand: Diphenoxylate-Atropine | 13 | — |
| Famotidine | 12 | — |
| Sucralfate | 12 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-19
- Last updated
- 2014-04-21
Frequently asked questions
- What is Michael Diaz's NPI number?
- Michael Diaz's National Provider Identifier (NPI) is 1427040021, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Diaz's specialty?
- Michael Diaz is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Diaz located?
- Michael Diaz's practice location on file with NPPES is 105 Glen Oak Blvd, Hendersonville, TN 37075-6424.
- What is Michael Diaz's phone number?
- The practice phone number listed in the NPPES registry for Michael Diaz is (615) 822-6716.
- Does Michael Diaz accept Medicare?
- Michael Diaz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Diaz's NPI active?
- Yes — Michael Diaz's NPI (1427040021) is active in the NPPES registry as of the last update on 2014-04-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.