John Nayden, M.D.
NPI 1437347978 · Diagnostic Radiology Physician · Frankfort, IL
John Nayden, M.D. is a Diagnostic Radiology Physician provider in Frankfort, IL (NPI 1437347978).
Provider details
- NPI number
- 1437347978
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
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
18 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2007-10-10
- Last updated
- 2007-10-10
Frequently asked questions
- What is John Nayden's NPI number?
- John Nayden's National Provider Identifier (NPI) is 1437347978, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Nayden's specialty?
- John Nayden is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Nayden located?
- John Nayden's practice location on file with NPPES is 366 Red Bud Ct, Frankfort, IL 60423-2128.
- What is John Nayden's phone number?
- The practice phone number listed in the NPPES registry for John Nayden is (815) 469-6361.
- Is John Nayden's NPI active?
- Yes — John Nayden's NPI (1437347978) is active in the NPPES registry as of the last update on 2007-10-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.