Donald Williams, M.D.
NPI 1255370912 · Pediatrics Physician · Austin, TX
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Donald Williams, M.D. is a Pediatrics Physician provider in Austin, TX (NPI 1255370912).
Provider details
- NPI number
- 1255370912
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- L5182 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$29 across 1 record (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
- 2006-06-06
- Last updated
- 2009-12-21
Frequently asked questions
- What is Donald Williams's NPI number?
- Donald Williams's National Provider Identifier (NPI) is 1255370912, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Williams's specialty?
- Donald Williams is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Donald Williams located?
- Donald Williams's practice location on file with NPPES is 313 E 12th St, Austin, TX 78701-1954.
- What is Donald Williams's phone number?
- The practice phone number listed in the NPPES registry for Donald Williams is (409) 772-2222.
- Does Donald Williams accept Medicare?
- Donald Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Donald Williams's NPI active?
- Yes — Donald Williams's NPI (1255370912) is active in the NPPES registry as of the last update on 2009-12-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.