Maria Diaz, FNP-C
NPI 1700386612 · Family Nurse Practitioner · Dallas, TX
Maria Diaz, FNP-C is a Family Nurse Practitioner provider in Dallas, TX (NPI 1700386612).
Provider details
- NPI number
- 1700386612
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Female
- Sole proprietor
- Yes
- License
- 939237 (TX)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
8 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 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 140 | 57 |
| Donepezil Hcl | 106 | 42 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 55 | 13 |
| Memantine Hcl | 53 | 18 |
| Topiramate | 47 | 18 |
| Levetiracetam | 28 | 11 |
| Escitalopram Oxalate | 21 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$557 across 24 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
- 2018-02-16
- Last updated
- 2023-02-25
- Certified
- 2022-12-17
Frequently asked questions
- What is Maria Diaz's NPI number?
- Maria Diaz's National Provider Identifier (NPI) is 1700386612, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Diaz's specialty?
- Maria Diaz is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Maria Diaz located?
- Maria Diaz's practice location on file with NPPES is 5184 Tex Oak Ave, Dallas, TX 75235-7822.
- What is Maria Diaz's phone number?
- The practice phone number listed in the NPPES registry for Maria Diaz is (469) 407-4173.
- Is Maria Diaz's NPI active?
- Yes — Maria Diaz's NPI (1700386612) is active in the NPPES registry as of the last update on 2023-02-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.