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John Fedack, M.D.
NPI 1598809394 · Internal Medicine Physician · Littleton, CO
John Fedack, M.D. is a Internal Medicine Physician provider in Littleton, CO (NPI 1598809394).
Provider details
- NPI number
- 1598809394
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 26264 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 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
5257 S Wadsworth Blvd
Littleton, CO 80123-2228
Phone: (303) 338-4545
Street-level locationGet directions
Mailing address
5257 S Wadsworth Boulevard
Littleton, CO 80123-2228
Registry dates
- Enumerated
- 2007-02-16
- Last updated
- 2010-10-18
Frequently asked questions
- What is John Fedack's NPI number?
- John Fedack's National Provider Identifier (NPI) is 1598809394, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Fedack's specialty?
- John Fedack is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Fedack located?
- John Fedack's practice location on file with NPPES is 5257 S Wadsworth Blvd, Littleton, CO 80123-2228.
- What is John Fedack's phone number?
- The practice phone number listed in the NPPES registry for John Fedack is (303) 338-4545.
- Is John Fedack's NPI active?
- Yes — John Fedack's NPI (1598809394) is active in the NPPES registry as of the last update on 2010-10-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.