Diana Diaz, FNP
NPI 1558137281 · Family Nurse Practitioner · Chicago, IL
Diana Diaz, FNP is a Family Nurse Practitioner provider in Chicago, IL (NPI 1558137281).
Provider details
- NPI number
- 1558137281
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 209.028793 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
2 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$775 across 19 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
- 2023-12-04
- Last updated
- 2023-12-04
- Certified
- 2023-12-04
Frequently asked questions
- What is Diana Diaz's NPI number?
- Diana Diaz's National Provider Identifier (NPI) is 1558137281, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Diaz's specialty?
- Diana Diaz is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Diana Diaz located?
- Diana Diaz's practice location on file with NPPES is 900 N Franklin St Ste 407, Chicago, IL 60610-3168.
- What is Diana Diaz's phone number?
- The practice phone number listed in the NPPES registry for Diana Diaz is (832) 520-1141.
- Is Diana Diaz's NPI active?
- Yes — Diana Diaz's NPI (1558137281) is active in the NPPES registry as of the last update on 2023-12-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.