Registry record
- NPI
- 1811360662
- Profession
- Nurse Practitioner (NP)
- Specialty
- Psychiatric/Mental Health Nurse Practitioner (363LP0808X)
- Practice address
- 4501 Joe Ramsey Blvd E Ste 260
Greenville, TX 75401 - Phone
- 9722327474
- In the registry since
- November 2, 2015
- Last NPPES update
- April 16, 2026
- Sole proprietor
- No
- License
- AP131035 (TX)
At this location
One other provider in our data lists 4501 Joe Ramsey Blvd E Ste 260, Greenville as a practice address:
- Mr. David Nzube Osuji, PMHNP-BC
Psychiatric/Mental Health Nurse Practitioner · NPI 1558011643
In context
The NPI number of Marquita Walker is 1811360662. They are a Psychiatric/Mental Health Nurse Practitioner in Greenville, Texas.
Marquita Walker is one of 18 Psychiatric/Mental Health Nurse Practitioners in Greenville and one of 4,351 across Texas in our data.
The NPI has been in the federal registry for 10 years, since November 2, 2015.
Frequently asked questions
What is NPI 1811360662?
NPI 1811360662 is the 10-digit National Provider Identifier assigned to Marquita Walker, a Psychiatric/Mental Health Nurse Practitioner practicing in Greenville, Texas. The record has been in the NPPES registry since November 2, 2015.
How do I verify this provider?
Cross-check NPI 1811360662 in the official CMS registry at npiregistry.cms.hhs.gov, and confirm license AP131035 with the TX licensing board. You can also run the number through our free NPI validator to confirm its checksum.
Is this information current?
This profile reflects the June 2026 NPPES data file. NPPES lists the record's last update as April 16, 2026. We refresh our data each month when CMS publishes a new file.
Data: NPPES public registry, June 2026 file. Not medical advice. Verify independently before care or credentialing decisions. Errors in the source record can be corrected at nppes.cms.hhs.gov; see our corrections page.