John Witwer, MD
NPI 1790022853 · Diagnostic Radiology Physician · Evergreen, CO
Enrolled with Medicare as Order and Referring Only - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Witwer, MD is a Diagnostic Radiology Physician provider in Evergreen, CO (NPI 1790022853).
Provider details
- NPI number
- 1790022853
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 17813 (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
13 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
- 2013-01-09
- Last updated
- 2013-01-09
Frequently asked questions
- What is John Witwer's NPI number?
- John Witwer's National Provider Identifier (NPI) is 1790022853, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Witwer's specialty?
- John Witwer is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is John Witwer located?
- John Witwer's practice location on file with NPPES is 3111 Interlocken Dr, Evergreen, CO 80439-8846.
- What is John Witwer's phone number?
- The practice phone number listed in the NPPES registry for John Witwer is (303) 674-0219.
- Does John Witwer accept Medicare?
- John Witwer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Witwer's NPI active?
- Yes — John Witwer's NPI (1790022853) is active in the NPPES registry as of the last update on 2013-01-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.