Michael Diaz, MD
NPI 1871574186 · Medical Oncology Physician · St Petersburg, FL
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Diaz, MD is a Medical Oncology Physician provider in St Petersburg, FL (NPI 1871574186).
Provider details
- NPI number
- 1871574186
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- ME84878 (FL)
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 tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
6,211 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) |
|---|---|---|
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 1,296 | $8 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 1,183 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 917 | $124 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 638 | $14 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, 1 Hour Or Less96365 | 274 | $59 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, Additional Sequential Infusion, 1 Hour Or Less96367 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 89 | 38 |
| Apixabanbrand: Eliquis | 48 | 18 |
| Oxycodone Hcl | 43 | 25 |
| Prochlorperazine Maleate | 31 | 26 |
| Lenalidomidebrand: Revlimid | 24 | — |
| Dexamethasone | 19 | 16 |
| Lorazepam | 17 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$4,403 across 175 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
Additional practice locations (1)
- 1615 Pasadena Ave S Ste 400South Pasadena, FL 33707-4567Phone: (727) 341-1316Fax: (727) 345-4000
Registry dates
- Enumerated
- 2005-11-14
- Last updated
- 2026-03-02
- Certified
- 2026-03-02
Frequently asked questions
- What is Michael Diaz's NPI number?
- Michael Diaz's National Provider Identifier (NPI) is 1871574186, 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 Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Diaz located?
- Michael Diaz's practice location on file with NPPES is 725 6th Ave S Ste 2200, St Petersburg, FL 33701-4553.
- What is Michael Diaz's phone number?
- The practice phone number listed in the NPPES registry for Michael Diaz is (727) 821-0017.
- 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 (1871574186) is active in the NPPES registry as of the last update on 2026-03-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.