Mercy Clinic St. Louis Cancer and Breast Institute, LLC
NPI 1891946349 · Surgical Oncology Physician · Saint Louis, MO
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mercy Clinic St. Louis Cancer and Breast Institute, LLC is a Surgical Oncology Physician organization in Saint Louis, MO (NPI 1891946349).
Provider details
- NPI number
- 1891946349
- Entity type
- Organization
- Primary specialty
- Surgical Oncology PhysicianAllopathic & Osteopathic Physicians
- Parent organization
- Mercy Clinic East Communities
- Organization subpart
- Yes
- Authorized official
- Kerry Dunger, Executive Director - Finance(314) 364-3707
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Hematology (Internal Medicine) Physician207RH0000X
Allopathic & Osteopathic Physicians
- Medical Oncology Physician207RX0202X
Allopathic & Osteopathic Physicians
- Radiation Oncology Physician2085R0001X
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Other names (DBA / former)
- Former legal business name
- St Louis Cancer and Breast Institute
- Former legal business name
- St Louis Cancer and Breast Institute
Additional practice locations (1)
- 15945 Clayton RdSuite 120Ballwin, MO 63011-2490Phone: (636) 256-5000Fax: (314) 989-1323
Registry dates
- Enumerated
- 2008-10-02
- Last updated
- 2025-04-25
- Certified
- 2025-04-25
Frequently asked questions
- What is Mercy Clinic St. Louis Cancer and Breast Institute, LLC's NPI number?
- Mercy Clinic St. Louis Cancer and Breast Institute, LLC's National Provider Identifier (NPI) is 1891946349, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Mercy Clinic St. Louis Cancer and Breast Institute, LLC?
- Mercy Clinic St. Louis Cancer and Breast Institute, LLC is classified in the NPPES registry as Surgical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Mercy Clinic St. Louis Cancer and Breast Institute, LLC located?
- Mercy Clinic St. Louis Cancer and Breast Institute, LLC's practice location on file with NPPES is 621 S New Ballas Rd Ste 260a, Saint Louis, MO 63141-8256.
- What is Mercy Clinic St. Louis Cancer and Breast Institute, LLC's phone number?
- The practice phone number listed in the NPPES registry for Mercy Clinic St. Louis Cancer and Breast Institute, LLC is (314) 251-8001.
- Does Mercy Clinic St. Louis Cancer and Breast Institute, LLC accept Medicare?
- Mercy Clinic St. Louis Cancer and Breast Institute, LLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Mercy Clinic St. Louis Cancer and Breast Institute, LLC?
- The authorized official listed on Mercy Clinic St. Louis Cancer and Breast Institute, LLC's NPPES record is Kerry Dunger, Executive Director - Finance. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Mercy Clinic St. Louis Cancer and Breast Institute, LLC's NPI active?
- Yes — Mercy Clinic St. Louis Cancer and Breast Institute, LLC's NPI (1891946349) is active in the NPPES registry as of the last update on 2025-04-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.