Chester Durnas, MD
NPI 1417964016 · Geriatric Medicine (Internal Medicine) Physician · Rockford, IL
Chester Durnas, MD is a Geriatric Medicine (Internal Medicine) Physician organization in Rockford, IL (NPI 1417964016).
Provider details
- NPI number
- 1417964016
- Entity type
- Organization
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Chester Durnas, President(920) 451-8142
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
- 2006-08-03
- Last updated
- 2020-08-22
Frequently asked questions
- What is Chester Durnas, MD's NPI number?
- Chester Durnas, MD's National Provider Identifier (NPI) is 1417964016, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Chester Durnas, MD?
- Chester Durnas, MD is classified in the NPPES registry as Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Chester Durnas, MD located?
- Chester Durnas, MD's practice location on file with NPPES is 6785 Weaver Rd, Rockford, IL 61114-8055.
- What is Chester Durnas, MD's phone number?
- The practice phone number listed in the NPPES registry for Chester Durnas, MD is (920) 451-8142.
- Who is the authorized official for Chester Durnas, MD?
- The authorized official listed on Chester Durnas, MD's NPPES record is Chester Durnas, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Chester Durnas, MD's NPI active?
- Yes — Chester Durnas, MD's NPI (1417964016) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.