NPI age
18 years
Enumerated 2007-07-05
● Active
Type 1 · Individual
Samuel J Collier, M.D.
Collier is 1 of 876 psychiatry & neurology providers in Houston and 1 of 4391 in Texas.
Primary specialty
Psychiatry & Neurology
Plus 7 subspecialties
Licensed in
TX, AL, CO, IL, SC, FL, NC, OH
8 states
Status
Active
No deactivations on record
Last NPPES update
2024-07-12
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 4391 active psychiatry & neurology providers in Texas.
NPI age
18 years
↑ 2 yr above median (16 yr)
State licenses
8 states
Top 87% — 12% of peers are multi-state
Subspecialties
0
34% of peers hold subspecialties
NPI lifetime · 2007 → 2026
2007-07Enumerated in NPPES
2007
2026
Where they practice
Practice location
20405 State Highway 249 Ste 325
Houston, TX 770702893
Mailing address
Po Box 211699
Eagan, MN 551213699
Additional practice locations
1 secondary location on file with NPPES.
Location 2
3501 Mills Ave
Austin, TX 787316309
Specialties
-
Psychiatry & Neurology PrimaryA Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (TX) | 284915001 |
Multi-state credentialing: Licensed in 8 states. Useful context for credentialers building cross-state provider networks.
Practice context
Part of a multi-provider practice. 81 other active providers share this practice address in NPPES.
Recently enumerated nearby: 10 new psychiatry & neurology providers have been added in Houston in the last 180 days.
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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.