Stephen Janney, MD
NPI 1265446074 · Hematology & Oncology Physician · St Louis, MO
Stephen Janney, MD is a Hematology & Oncology Physician provider in St Louis, MO (NPI 1265446074).
Provider details
- NPI number
- 1265446074
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- R8D25 (MO)
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
- 2006-07-28
- Last updated
- 2013-01-30
Frequently asked questions
- What is Stephen Janney's NPI number?
- Stephen Janney's National Provider Identifier (NPI) is 1265446074, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Janney's specialty?
- Stephen Janney is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Janney located?
- Stephen Janney's practice location on file with NPPES is 6400 Clayton Rd, St Louis, MO 63117.
- What is Stephen Janney's phone number?
- The practice phone number listed in the NPPES registry for Stephen Janney is (314) 645-3432.
- Is Stephen Janney's NPI active?
- Yes — Stephen Janney's NPI (1265446074) is active in the NPPES registry as of the last update on 2013-01-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.