William Wallen, MD
NPI 1164827945 · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Indianapolis, IN
Enrolled with Medicare as Practitioner - Thoracic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Wallen, MD is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider in Indianapolis, IN (NPI 1164827945).
Provider details
- NPI number
- 1164827945
- Entity type
- Individual
- Primary specialty
- Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- TP576 (KY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 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
Additional practice locations (1)
- 800 Rose StLexington, KY 40536Phone: (859) 323-1000
Registry dates
- Enumerated
- 2014-10-23
- Last updated
- 2025-09-09
- Certified
- 2025-09-09
Frequently asked questions
- What is William Wallen's NPI number?
- William Wallen's National Provider Identifier (NPI) is 1164827945, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Wallen's specialty?
- William Wallen is listed in the NPPES registry with a primary specialty of Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (Allopathic & Osteopathic Physicians).
- Where is William Wallen located?
- William Wallen's practice location on file with NPPES is 8333 Naab Rd Ste 320, Indianapolis, IN 46260-1983.
- What is William Wallen's phone number?
- The practice phone number listed in the NPPES registry for William Wallen is (317) 338-3000.
- Does William Wallen accept Medicare?
- William Wallen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Wallen's NPI active?
- Yes — William Wallen's NPI (1164827945) is active in the NPPES registry as of the last update on 2025-09-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.