NPI age
19 years
Enumerated 2006-07-19
● Active
Type 1 · Individual
William Lance Walkup, FNP-C
Walkup is 1 of 31 nurse practitioner providers in Denison and 1 of 22123 in Texas.
Primary specialty
Nurse Practitioner
Plus 1 subspecialty
Licensed in
TX, OK
2 states
Status
Active
No deactivations on record
Last NPPES update
2018-05-01
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 22123 active nurse practitioner providers in Texas.
NPI age
19 years
↑ 12 yr above median (7 yr)
State licenses
2 states
Top 94% — 5% of peers are multi-state
Subspecialties
1
In the 23% of peers with subspecialties
NPI lifetime · 2006 → 2026
2006-07Enumerated in NPPES
2006
2026
Where they practice
Practice location
900 N Armstrong Ave
Denison, TX 750202230
Mailing address
900 N Armstrong Ave
Denison, TX 750202230
Specialties
-
Nurse Practitioner PrimaryDefinition to come...
-
ChiropractorA provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal...
Practice context
Part of a multi-provider practice. 8 other active providers share this practice address in NPPES.
Provyx · Custom healthcare lists
Need all 22123 Nurse Practitioner providers in Texas?
Provyx verifies the list to your scope. Business emails and direct lines are looked up at delivery, validated, and not stored.
Request a quote →How to verify this provider
- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Check the state license is currently active.State licensing boards publish current status; NPPES does not.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.