Michael Diaz, M.D.
NPI 1730229584 · Hematology & Oncology Physician · New York, NY
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Diaz, M.D. is a Hematology & Oncology Physician provider in New York, NY (NPI 1730229584).
Provider details
- NPI number
- 1730229584
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 114488 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 60 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Diclofenac Sodium | 186 | 65 |
| Amlodipine Besylate | 121 | 36 |
| Atorvastatin Calcium | 121 | 40 |
| Losartan/Hydrochlorothiazidebrand: Losartan-Hydrochlorothiazide | 75 | 25 |
| Nystatin | 67 | 39 |
| Empagliflozinbrand: Jardiance | 62 | 17 |
| Prednisone |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$212 across 8 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
- 2007-02-08
- Last updated
- 2007-07-08
Frequently asked questions
- What is Michael Diaz's NPI number?
- Michael Diaz's National Provider Identifier (NPI) is 1730229584, 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 Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Diaz located?
- Michael Diaz's practice location on file with NPPES is 1112 Park Ave, New York, NY 10128-1235.
- What is Michael Diaz's phone number?
- The practice phone number listed in the NPPES registry for Michael Diaz is (212) 876-4500.
- 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 (1730229584) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.