Francis Keffler, M.D.
NPI 1255426508 · Internal Medicine Physician · Denver, CO
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Francis Keffler, M.D. is a Internal Medicine Physician provider in Denver, CO (NPI 1255426508).
Provider details
- NPI number
- 1255426508
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 225439 (CO)
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
- 2006-10-03
- Last updated
- 2022-07-21
Frequently asked questions
- What is Francis Keffler's NPI number?
- Francis Keffler's National Provider Identifier (NPI) is 1255426508, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Francis Keffler's specialty?
- Francis Keffler is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Francis Keffler located?
- Francis Keffler's practice location on file with NPPES is 1055 Clermont St, Denver, CO 80220-3808.
- What is Francis Keffler's phone number?
- The practice phone number listed in the NPPES registry for Francis Keffler is (303) 914-8047.
- Does Francis Keffler accept Medicare?
- Francis Keffler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Francis Keffler's NPI active?
- Yes — Francis Keffler's NPI (1255426508) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.