William Bartek, M.D
NPI 1598722522 · Critical Care Medicine (Internal Medicine) Physician · Austin, TX
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Bartek, M.D is a Critical Care Medicine (Internal Medicine) Physician provider in Austin, TX (NPI 1598722522).
Provider details
- NPI number
- 1598722522
- Entity type
- Individual
- Primary specialty
- Critical Care Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Male
- Sole proprietor
- No
- License
- K2642 (TX)
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 tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
3,048 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 509 | $128 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 264 | $62 |
| Test to Measure Rate of Airflow94375 | 186 | $39 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 183 | $91 |
| Test to Determine Lung Volumes Using Sensors94726 | 169 | $56 |
| Test to Examine How Well the Lungs Exchange Gases94729 | 164 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 235 | 55 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 210 | 83 |
| Prednisone | 148 | 80 |
| Fluticasone/Vilanterolbrand: Breo Ellipta | 119 | 27 |
| Azithromycin | 112 | 57 |
| Montelukast Sodium | 71 | 22 |
| Tiotropium Bromide |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$45,584 across 81 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-26
- Last updated
- 2016-10-24
Frequently asked questions
- What is William Bartek's NPI number?
- William Bartek's National Provider Identifier (NPI) is 1598722522, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Bartek's specialty?
- William Bartek is listed in the NPPES registry with a primary specialty of Critical Care Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is William Bartek located?
- William Bartek's practice location on file with NPPES is 5920 W William Cannon Dr, Austin, TX 78749-1902.
- What is William Bartek's phone number?
- The practice phone number listed in the NPPES registry for William Bartek is (512) 441-9799.
- Does William Bartek accept Medicare?
- William Bartek is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Bartek's NPI active?
- Yes — William Bartek's NPI (1598722522) is active in the NPPES registry as of the last update on 2016-10-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.