NPI age
19 years
Enumerated 2006-10-23
● Active
Type 1 · Individual
Kristen Brewer Koester, M.D.
Koester is 1 of 4 radiology providers in Llano and 1 of 3776 in Texas.
Primary specialty
Radiology
Plus 1 subspecialty
Licensed in
TX, SC
2 states
Status
Active
No deactivations on record
Last NPPES update
2009-01-10
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 3776 active radiology providers in Texas.
NPI age
19 years
≈ at median (19 yr)
State licenses
2 states
Top 81% — 18% of peers are multi-state
Subspecialties
0
36% of peers hold subspecialties
NPI lifetime · 2006 → 2026
2006-10Enumerated in NPPES
2006
2026
Where they practice
Practice location
200 W Ollie St
Llano, TX 786432628
Mailing address
7418 John Smith, Suite 218
San Antonio, TX 782296020
Specialties
-
Radiology PrimaryA radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (TX) | 197245701 | |
| 01 (TX) | P00628198 | MEDICARE RAILROAD |
| 01 (TX) | 8M2156 | BCBS |
Multi-state credentialing: Licensed in 2 states. Useful context for credentialers building cross-state provider networks.
Practice context
Part of a multi-provider practice. 15 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.