Frances Franceschini Diaz, M.D.
NPI 1841445459 · General Practice Physician · Rio Piedras, PR
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Frances Franceschini Diaz, M.D. is a General Practice Physician provider in Rio Piedras, PR (NPI 1841445459).
Provider details
- NPI number
- 1841445459
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 017722 (PR)
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
17 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 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clonazepam | 109 | 47 |
| Quetiapine Fumarate | 69 | 26 |
| Temazepam | 66 | 30 |
| Fluoxetine Hcl | 63 | 17 |
| Risperidone | 63 | 28 |
| Sertraline Hcl | 60 | 29 |
| Trazodone Hcl | 57 | 26 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$23 across 1 record (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
- 2008-11-24
- Last updated
- 2017-08-02
Frequently asked questions
- What is Frances Franceschini Diaz's NPI number?
- Frances Franceschini Diaz's National Provider Identifier (NPI) is 1841445459, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frances Franceschini Diaz's specialty?
- Frances Franceschini Diaz is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Frances Franceschini Diaz located?
- Frances Franceschini Diaz's practice location on file with NPPES is Hospital Oncologico Dr. I. Gonzalez Martinez, Rio Piedras, PR 00926.
- What is Frances Franceschini Diaz's phone number?
- The practice phone number listed in the NPPES registry for Frances Franceschini Diaz is (787) 999-4028.
- Does Frances Franceschini Diaz accept Medicare?
- Frances Franceschini Diaz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Frances Franceschini Diaz's NPI active?
- Yes — Frances Franceschini Diaz's NPI (1841445459) is active in the NPPES registry as of the last update on 2017-08-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.