Chester Durnas, MD
NPI 1033129788 · Geriatric Medicine (Internal Medicine) Physician · Rockford, IL
Enrolled with Medicare as Practitioner - Geriatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chester Durnas, MD is a Geriatric Medicine (Internal Medicine) Physician provider in Rockford, IL (NPI 1033129788).
Provider details
- NPI number
- 1033129788
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 036073836 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2006-08-08
- Last updated
- 2008-05-27
Frequently asked questions
- What is Chester Durnas's NPI number?
- Chester Durnas's National Provider Identifier (NPI) is 1033129788, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chester Durnas's specialty?
- Chester Durnas is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Chester Durnas located?
- Chester Durnas's practice location on file with NPPES is 6785 Weaver Rd, Rockford, IL 61114-8055.
- What is Chester Durnas's phone number?
- The practice phone number listed in the NPPES registry for Chester Durnas is (815) 633-8586.
- Does Chester Durnas accept Medicare?
- Chester Durnas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chester Durnas's NPI active?
- Yes — Chester Durnas's NPI (1033129788) is active in the NPPES registry as of the last update on 2008-05-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.