NPI age
19 years
Enumerated 2006-08-30
● Active
Type 1 · Individual
Michael Gary Contreras, MD
Contreras is 1 of 46 anesthesiology providers in Amarillo and 1 of 6023 in Texas.
Primary specialty
Anesthesiology
Plus 1 subspecialty
Licensed in
TX, IL
2 states
Status
Active
No deactivations on record
Last NPPES update
2026-03-30
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 6023 active anesthesiology providers in Texas.
NPI age
19 years
≈ at median (18 yr)
State licenses
2 states
Top 87% — 12% of peers are multi-state
Subspecialties
0
31% of peers hold subspecialties
NPI lifetime · 2006 → 2026
2006-08Enumerated in NPPES
2006
2026
Where they practice
Practice location
600 S Tyler St Ste 2100
Amarillo, TX 791012304
Mailing address
Po Box 840853
Dallas, TX 752840865
Additional practice locations
1 secondary location on file with NPPES.
Location 2
2727 W Holcombe Blvd
Houston, TX 770251669
Specialties
-
Anesthesiology PrimaryAn anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (TX) | 212647601 | |
| 05 (IL) | 584727300 | |
| 05 (LA) | 2322931 | |
| 01 (TX) | 8CH198 | BLUE CROSS BLUE SHIELD |
| 01 (TX) | P00834481 | RR MEDICARE |
Multi-state credentialing: Licensed in 2 states. Useful context for credentialers building cross-state provider networks.
Practice context
Part of a multi-provider practice. 17 other active providers share this practice address in NPPES.
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- 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.