Stefan Tarnawsky, MD PHD
NPI 1023679859 · Medical Oncology Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stefan Tarnawsky, MD PHD is a Medical Oncology Physician provider in Saint Louis, MO (NPI 1023679859).
Provider details
- NPI number
- 1023679859
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD PHD
- Sex
- Male
- Sole proprietor
- No
- License
- 2021006235 (MO)
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
7 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
- 2019-06-24
- Last updated
- 2025-08-06
- Certified
- 2021-06-19
Frequently asked questions
- What is Stefan Tarnawsky's NPI number?
- Stefan Tarnawsky's National Provider Identifier (NPI) is 1023679859, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stefan Tarnawsky's specialty?
- Stefan Tarnawsky is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Stefan Tarnawsky located?
- Stefan Tarnawsky's practice location on file with NPPES is 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110-1003.
- What is Stefan Tarnawsky's phone number?
- The practice phone number listed in the NPPES registry for Stefan Tarnawsky is (314) 747-1171.
- Does Stefan Tarnawsky accept Medicare?
- Stefan Tarnawsky is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stefan Tarnawsky's NPI active?
- Yes — Stefan Tarnawsky's NPI (1023679859) is active in the NPPES registry as of the last update on 2025-08-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.