Dr. Ernie Diaz Rivera, MD
- Part D claims, 2024
- 131
- Industry payments
- $2,363
- State license
- 1
- Year NPI issued
- 2020
- Practice address
- Po Box 365067, San Juan, PR 00936
- Practice phone
- Call (787) 754-0101
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Diaz Rivera's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Ernie Diaz Rivera is a hematologist and oncologist in San Juan, Puerto Rico
Dr. Diaz Rivera practices in San Juan, Puerto Rico.
Dr. Diaz Rivera's NPI, 1992330831, was assigned on March 11, 2020. Dr. Diaz Rivera holds Puerto Rico license 23205.
- NPI
- 1992330831NPI Registry (opens in a new tab)
- NPI enumeration date
- March 11, 2020
- NPI status
- Active
- Practice phone
- (787) 754-0101
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Ernie Diaz Rivera's practice address is in San Juan, Puerto Rico
Dr. Diaz Rivera's practice address in the NPI Registry is Po Box 365067, San Juan, PR 00936. The practice phone is (787) 754-0101.
- NPI Registry addressPo Box 365067, San Juan, PR 00936Phone(787) 754-0101
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Ernie Diaz Rivera's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Diaz Rivera practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Diaz Rivera's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ernie Diaz Rivera is one of 114 hematologists and oncologists in Puerto Rico
Hematology and oncology is Dr. Diaz Rivera's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Diaz Rivera is licensed in Puerto Rico.
Specialties and state licenses
- Hematology and oncology, Puerto RicoPrimary
Hematologists and oncologists near Dr. Diaz Rivera
Counts of hematologists and oncologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Ernie Diaz Rivera wrote 131 Medicare Part D claims in 2024
In 2024, Dr. Diaz Rivera wrote 131 Medicare Part D claims for 36 patients. 85% of them were for generic drugs.
Dr. Diaz Rivera's Part D claims by kind of drug, 2024
- Generic112 claims85%
- Brand-name19 claims15%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Ernie Diaz Rivera received $2,363 in industry payments from 2024 to 2025
CMS Open Payments shows 72 general payments to Dr. Diaz Rivera from 17 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 96% of the total. Bristol-Myers Squibb Company paid the most, $405.
General payments to Dr. Diaz Rivera by program year, 2024 to 2025
General payments to Dr. Diaz Rivera by kind, 2024 to 2025
- Food and beverage$2,26796%
- Education$964%
Companies that paid Dr. Diaz Rivera the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Ernie Diaz Rivera's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Ernie Diaz Rivera
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Ernie Diaz Rivera's NPI number?
Dr. Ernie Diaz Rivera's NPI number is 1992330831. It was assigned on March 11, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Ernie Diaz Rivera?
Dr. Ernie Diaz Rivera is a hematologist and oncologist in San Juan, Puerto Rico. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Ernie Diaz Rivera practice?
Dr. Diaz Rivera practices at Po Box 365067, San Juan, PR 00936.
What is Dr. Ernie Diaz Rivera's office phone number?
The practice phone on file for Dr. Diaz Rivera is (787) 754-0101.
What is Dr. Ernie Diaz Rivera's medical license number?
Dr. Diaz Rivera holds Puerto Rico license 23205.
Has Dr. Ernie Diaz Rivera received payments from drug or device companies?
CMS Open Payments shows $2,363 in general payments to Dr. Diaz Rivera from 17 companies from 2024 to 2025. The largest total came from Bristol-Myers Squibb Company.
How long has Dr. Ernie Diaz Rivera been practicing?
Dr. Diaz Rivera's NPI was assigned in 2020.
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