NPI age
20 years
Enumerated 2006-03-17
● Active
Type 1 · Individual
MR. Mark A Hornsby, CRNA
Hornsby is 1 of 1 nurse anesthetist, certified registered providers in Denver City and 1 of 6676 in Texas.
Primary specialty
Nurse Anesthetist, Certified Registered
Plus 1 subspecialty
Licensed in
TX, CA
2 states
Status
Active
No deactivations on record
Last NPPES update
2020-06-23
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 6676 active nurse anesthetist, certified registered providers in Texas.
NPI age
20 years
↑ 7 yr above median (13 yr)
State licenses
2 states
Top 84% — 16% of peers are multi-state
Subspecialties
0
35% of peers hold subspecialties
NPI lifetime · 2006 → 2026
2006-03Enumerated in NPPES
2006
2026
Where they practice
Practice location
412 Mustang Dr
Denver City, TX 793232762
Mailing address
Po Box 1130
Denver City, TX 793231130
Specialties
-
Nurse Anesthetist, Certified Registered Primary(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (TX) | 184258501 | |
| 01 (TX) | 86896U | BCBSTX |
| 05 (CA) | RN5543380 | |
| 01 (TX) | 1D4636 | NOVITAS - 855I |
| 01 (TX) | 1D4636 | 855R |
Multi-state credentialing: Licensed in 2 states. Useful context for credentialers building cross-state provider networks.
Practice context
Part of a multi-provider practice. 5 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.