William Barron, MD
NPI 1295709335 · Internal Medicine Physician · La Grange Park, IL
William Barron, MD is a Internal Medicine Physician provider in La Grange Park, IL (NPI 1295709335).
Provider details
- NPI number
- 1295709335
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 36063293 (IL)
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 tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-15
- Last updated
- 2017-02-21
Frequently asked questions
- What is William Barron's NPI number?
- William Barron's National Provider Identifier (NPI) is 1295709335, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Barron's specialty?
- William Barron is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Barron located?
- William Barron's practice location on file with NPPES is 810 N Waiola Ave, La Grange Park, IL 60526-1452.
- What is William Barron's phone number?
- The practice phone number listed in the NPPES registry for William Barron is (708) 937-9129.
- Is William Barron's NPI active?
- Yes — William Barron's NPI (1295709335) is active in the NPPES registry as of the last update on 2017-02-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.