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Charles Bareis, MD
NPI 1740212646 · Internal Medicine Physician · Berwyn, IL
Charles Bareis, MD is a Internal Medicine Physician provider in Berwyn, IL (NPI 1740212646).
Provider details
- NPI number
- 1740212646
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036-080238 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
3231 Euclid Ave
Berwyn, IL 60402-3471
Phone: (708) 783-7400
Fax: (708) 783-7401
Street-level locationGet directions
Mailing address
3231 Euclid Ave
Berwyn, IL 60402-3471
Registry dates
- Enumerated
- 2006-07-07
- Last updated
- 2011-08-30
Frequently asked questions
- What is Charles Bareis's NPI number?
- Charles Bareis's National Provider Identifier (NPI) is 1740212646, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Bareis's specialty?
- Charles Bareis is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Charles Bareis located?
- Charles Bareis's practice location on file with NPPES is 3231 Euclid Ave, Berwyn, IL 60402-3471.
- What is Charles Bareis's phone number?
- The practice phone number listed in the NPPES registry for Charles Bareis is (708) 783-7400.
- Is Charles Bareis's NPI active?
- Yes — Charles Bareis's NPI (1740212646) is active in the NPPES registry as of the last update on 2011-08-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.