Maria Castillo
NPI 1659156891 · Nurse Practitioner · Houston, TX
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Castillo is a Nurse Practitioner provider in Houston, TX (NPI 1659156891).
Provider details
- NPI number
- 1659156891
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 1132840 (TX)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
2 documented practice locations
- 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.
$99 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
Additional practice locations (1)
- 6411 Fannin St Ste J1-400Houston, TX 77030-1501Phone: (713) 500-7401
Registry dates
- Enumerated
- 2023-08-28
- Last updated
- 2024-09-05
- Certified
- 2024-09-05
Frequently asked questions
- What is Maria Castillo's NPI number?
- Maria Castillo's National Provider Identifier (NPI) is 1659156891, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Castillo's specialty?
- Maria Castillo is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Maria Castillo located?
- Maria Castillo's practice location on file with NPPES is 6551 Bertner Ave Fl Wt15, Houston, TX 77030-2807.
- What is Maria Castillo's phone number?
- The practice phone number listed in the NPPES registry for Maria Castillo is (713) 441-1450.
- Does Maria Castillo accept Medicare?
- Maria Castillo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Castillo's NPI active?
- Yes — Maria Castillo's NPI (1659156891) is active in the NPPES registry as of the last update on 2024-09-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.