Registry record
- NPI
- 1457501025
- Profession
- Nurse Practitioner (NP)
- Specialty
- Acute Care Nurse Practitioner (363LA2100X)
- Practice address
- 703 E Marshall Ave, Suite 5008
Longview, TX 75601 - Phone
- 9033154880
- In the registry since
- September 19, 2008
- Last NPPES update
- October 23, 2015
- Sole proprietor
- No
- License
- AP117340 (TX)
At this location
5 other providers in our data list 703 E Marshall Ave, Longview as a practice address:
- Nicole Deann Francis
Family Nurse Practitioner · NPI 1821327966
- Jamie Dawn Graves, FNP-C
Family Nurse Practitioner · NPI 1568011336
- Dana Johnson
Family Nurse Practitioner · NPI 1831562834
- Rashida Michelle Johnson, PA
Physician Assistant · NPI 1548455389
- Carrie Judd, FNP-C
Family Nurse Practitioner · NPI 1588034128
In context
The NPI number of William Barker is 1457501025. They are a Acute Care Nurse Practitioner in Longview, Texas.
William Barker is one of 33 Acute Care Nurse Practitioners in Longview and one of 3,743 across Texas in our data.
The NPI has been in the federal registry for 17 years, since September 19, 2008.
Frequently asked questions
What is NPI 1457501025?
NPI 1457501025 is the 10-digit National Provider Identifier assigned to William Barker, a Acute Care Nurse Practitioner practicing in Longview, Texas. The record has been in the NPPES registry since September 19, 2008.
How do I verify this provider?
Cross-check NPI 1457501025 in the official CMS registry at npiregistry.cms.hhs.gov, and confirm license AP117340 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 October 23, 2015. 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.