Brian Koester, MD
NPI 1851435622 · Hematology & Oncology Physician · Denver, CO
Brian Koester, MD is a Hematology & Oncology Physician provider in Denver, CO (NPI 1851435622).
Provider details
- NPI number
- 1851435622
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 28039 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
- 2007-02-16
- Last updated
- 2014-05-05
Frequently asked questions
- What is Brian Koester's NPI number?
- Brian Koester's National Provider Identifier (NPI) is 1851435622, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Koester's specialty?
- Brian Koester is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Koester located?
- Brian Koester's practice location on file with NPPES is 2045 Franklin St, Denver, CO 80205-5437.
- What is Brian Koester's phone number?
- The practice phone number listed in the NPPES registry for Brian Koester is (303) 338-4545.
- Is Brian Koester's NPI active?
- Yes — Brian Koester's NPI (1851435622) is active in the NPPES registry as of the last update on 2014-05-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.