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William Fell, MD
NPI 1912994435 · Internal Medicine Physician · Aurora, CO
William Fell, MD is a Internal Medicine Physician provider in Aurora, CO (NPI 1912994435).
Provider details
- NPI number
- 1912994435
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 17471 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
1421 S Potomac St
Suite 220
Aurora, CO 80012-4535
Phone: (303) 872-3914
Fax: (720) 535-4832
Street-level locationGet directions
Mailing address
5784 S Kittredge St
Centennial, CO 80015-4004
Registry dates
- Enumerated
- 2005-09-29
- Last updated
- 2014-08-21
Frequently asked questions
- What is William Fell's NPI number?
- William Fell's National Provider Identifier (NPI) is 1912994435, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Fell's specialty?
- William Fell is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Fell located?
- William Fell's practice location on file with NPPES is 1421 S Potomac St, Aurora, CO 80012-4535.
- What is William Fell's phone number?
- The practice phone number listed in the NPPES registry for William Fell is (303) 872-3914.
- Is William Fell's NPI active?
- Yes — William Fell's NPI (1912994435) is active in the NPPES registry as of the last update on 2014-08-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.