John M. Fedack, M.D.
Internal Medicine Physician · Littleton, CO
John M. Fedack, M.D. is an internal medicine physician with a practice address in Littleton, Colorado, and NPI 1598809394, issued on Feb 16, 2007. Check the license (Colorado 26264, as entered in NPPES) on the Colorado Medical Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John M. Fedack
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 26264 CO
Self-reported in NPPES; status is on the state search - Practice location
- 5257 S Wadsworth Blvd, Littleton, CO 80123
- Phone
- (303) 338-4545
- Enumerated
- Feb 16, 2007
- Record last updated
- Oct 18, 2010 (not updated in 16 years: call before relying on the address or phone)
- Medicaid ID
- 01262641 CO
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,046 in Colorado → Look up another NPI →
Also registered at 5257 S Wadsworth Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer BeckerRegistered Nurse1861529802
- Sally Berga, MDObstetrics & Gynecology Physician1689718488
- Deanna BezjakInternal Medicine Physician1487781407
- Amy BilyeuRegistered Nurse1447387469
- Christine Blanco, RNInternal Medicine Physician1659414746
- Camilla BordenLicensed Practical Nurse1639375025
Verify John M. Fedack in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license 26264Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
John M. Fedack among 2,046 internal medicine physician records in Colorado
John M. Fedack, M.D. is one of 2,046 internal medicine physician records with a practice address in Colorado. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 40% of them.
- NPI issued2007 · 40% of these records are older, 39% newer
- In a Medicare fileNo · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2010 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
60 internal medicine physician records list a practice address in Littleton
They are 60 of the 3,918 NPPES records with a practice address in Littleton, and 2,046 internal medicine physician records in Colorado. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,046 in Colorado → Every provider in Littleton → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Deanna BezjakLittleton, CO 801231487781407
- Christine Blanco, RNLittleton, CO 801231659414746
- Robert Blayney, MDLittleton, CO 801231780659870
- Roger Bowles, MDLittleton, CO 801231063473965
- Gerald Brown, MDLittleton, CO 801231528029253
- Lavonne CarterLittleton, CO 801231184768806
- Linda CassellLittleton, CO 801231619004645
- George Frank, MDLittleton, CO 801231417918061
Common questions
What is John M. Fedack, M.D.'s NPI number?
John M. Fedack, M.D.'s National Provider Identifier (NPI) is 1598809394, issued on Feb 16, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John M. Fedack, M.D. located?
The NPPES record lists a practice address at 5257 S Wadsworth Blvd, Littleton, CO, 80123. Phone: (303) 338-4545. Providers update this record themselves, so call before visiting.
How can I verify John M. Fedack, M.D.'s license?
NPPES lists Colorado license number 26264, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.