William Patterson
NPI 1538666367 · Emergency Medicine Physician · Burnet, TX
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Patterson is a Emergency Medicine Physician provider in Burnet, TX (NPI 1538666367).
Provider details
- NPI number
- 1538666367
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
120 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 78 | $173 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 25 | $8 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 17 | $120 |
Typical Medicare-allowed amounts for these services range $8–$173 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (1)
- 12412 Judson RdLive Oak, TX 78233-3255Phone: (210) 757-7000
Registry dates
- Enumerated
- 2018-04-09
- Last updated
- 2021-11-08
- Certified
- 2021-11-08
Frequently asked questions
- What is William Patterson's NPI number?
- William Patterson's National Provider Identifier (NPI) is 1538666367, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Patterson's specialty?
- William Patterson is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Patterson located?
- William Patterson's practice location on file with NPPES is 3201 S Water St, Burnet, TX 78611-4510.
- What is William Patterson's phone number?
- The practice phone number listed in the NPPES registry for William Patterson is (512) 715-3000.
- Does William Patterson accept Medicare?
- William Patterson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Patterson's NPI active?
- Yes — William Patterson's NPI (1538666367) is active in the NPPES registry as of the last update on 2021-11-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.