Maryann Onwenu, PMHNP-BC
NPI 1235896846 · Psychiatric/Mental Health Nurse Practitioner · Houston, TX
Maryann Onwenu, PMHNP-BC is a Psychiatric/Mental Health Nurse Practitioner provider in Houston, TX (NPI 1235896846).
Provider details
- NPI number
- 1235896846
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PMHNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- 1035147 (TX)
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
4 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.
$24 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
- 2021-11-18
- Last updated
- 2021-11-18
- Certified
- 2021-11-18
Frequently asked questions
- What is Maryann Onwenu's NPI number?
- Maryann Onwenu's National Provider Identifier (NPI) is 1235896846, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maryann Onwenu's specialty?
- Maryann Onwenu is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Maryann Onwenu located?
- Maryann Onwenu's practice location on file with NPPES is 11455 Fallbrook Dr, Houston, TX 77065-4238.
- What is Maryann Onwenu's phone number?
- The practice phone number listed in the NPPES registry for Maryann Onwenu is (832) 430-6505.
- Is Maryann Onwenu's NPI active?
- Yes — Maryann Onwenu's NPI (1235896846) is active in the NPPES registry as of the last update on 2021-11-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.