Russell Tolley, MD
NPI 1851375414 · Hematology & Oncology Physician · Louisville, CO
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Russell Tolley, MD is a Hematology & Oncology Physician provider in Louisville, CO (NPI 1851375414).
Provider details
- NPI number
- 1851375414
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 28166 (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
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
Mailing address
Registry dates
- Enumerated
- 2005-12-06
- Last updated
- 2015-12-29
Frequently asked questions
- What is Russell Tolley's NPI number?
- Russell Tolley's National Provider Identifier (NPI) is 1851375414, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Russell Tolley's specialty?
- Russell Tolley is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Russell Tolley located?
- Russell Tolley's practice location on file with NPPES is 80 Health Park Dr, Louisville, CO 80027-9584.
- What is Russell Tolley's phone number?
- The practice phone number listed in the NPPES registry for Russell Tolley is (303) 661-1860.
- Does Russell Tolley accept Medicare?
- Russell Tolley is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Russell Tolley's NPI active?
- Yes — Russell Tolley's NPI (1851375414) is active in the NPPES registry as of the last update on 2015-12-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.