Dirk Koester, M.D.
NPI 1801979109 · Diagnostic Radiology Physician · Austin, TX
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dirk Koester, M.D. is a Diagnostic Radiology Physician provider in Austin, TX (NPI 1801979109).
Provider details
- NPI number
- 1801979109
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 24523 (SC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
5,811 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 760 | $8 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 327 | $84 |
| Ct Scan Head Or Brain Without Contrast70450 | 307 | $38 |
| Ct Scan of Chest Without Contrast71250 | 300 | $60 |
| Ct Scan of Abdomen and Pelvis Without Contrast74176 | 247 | $80 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 242 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-23
- Last updated
- 2021-04-05
- Certified
- 2021-04-05
Frequently asked questions
- What is Dirk Koester's NPI number?
- Dirk Koester's National Provider Identifier (NPI) is 1801979109, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dirk Koester's specialty?
- Dirk Koester is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Dirk Koester located?
- Dirk Koester's practice location on file with NPPES is 12554 Riata Vista Cir, Austin, TX 78727-6431.
- What is Dirk Koester's phone number?
- The practice phone number listed in the NPPES registry for Dirk Koester is (512) 795-5100.
- Does Dirk Koester accept Medicare?
- Dirk Koester is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dirk Koester's NPI active?
- Yes — Dirk Koester's NPI (1801979109) is active in the NPPES registry as of the last update on 2021-04-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.