NPI age
20 years
Enumerated 2006-04-07
● Active
Type 1 · Individual
Mark Eric Terwilliger, CPNP
Terwilliger is 1 of 5 nurse practitioner providers in Harker Heights and 1 of 2256 in Texas.
Primary specialty
Nurse Practitioner
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2014-05-05
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 2256 active nurse practitioner providers in Texas.
NPI age
20 years
↑ 10 yr above median (10 yr)
State licenses
1 state
5% of peers hold multiple states
Subspecialties
0
24% of peers hold subspecialties
NPI lifetime · 2006 → 2026
2006-04Enumerated in NPPES
2006
2026
Where they practice
Practice location
200 Nola Ruth Blvd
Harker Heights, TX 765486074
Mailing address
205 E University Ave, Suite 200
Georgetown, TX 786266814
Specialties
-
Nurse Practitioner PrimaryDefinition to come...
Practice context
Part of a multi-provider practice. 7 other active providers share this practice address in NPPES.
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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.