Karen Rieger, MD
NPI 1598870982 · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Indianapolis, IN
Enrolled with Medicare as Practitioner - Thoracic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Rieger, MD is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider in Indianapolis, IN (NPI 1598870982).
Provider details
- NPI number
- 1598870982
- Entity type
- Individual
- Primary specialty
- Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 01047804 (IN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
3 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$290 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 545 Bamhill Dr Eh 215Indianapolis, IN 46202-5112Phone: (317) 948-0944Fax: (317) 274-2940
- 550 University BlvdIndianapolis, IN 46202-5149Phone: (317) 944-7728Fax: (317) 274-2940
Registry dates
- Enumerated
- 2006-08-19
- Last updated
- 2020-12-29
- Certified
- 2020-12-29
Frequently asked questions
- What is Karen Rieger's NPI number?
- Karen Rieger's National Provider Identifier (NPI) is 1598870982, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Rieger's specialty?
- Karen Rieger is listed in the NPPES registry with a primary specialty of Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Rieger located?
- Karen Rieger's practice location on file with NPPES is 535 Barnhill Dr, Indianapolis, IN 46202-5116.
- What is Karen Rieger's phone number?
- The practice phone number listed in the NPPES registry for Karen Rieger is (317) 944-2394.
- Does Karen Rieger accept Medicare?
- Karen Rieger is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Rieger's NPI active?
- Yes — Karen Rieger's NPI (1598870982) is active in the NPPES registry as of the last update on 2020-12-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.