William Wallen, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Indianapolis, IN
William Wallen, MD is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Indianapolis, Indiana, and NPI 1164827945, issued on Oct 23, 2014. Check the license (Indiana 01097512A, as entered in NPPES) on the Medical Licensing Board of Indiana; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Wallen
- Credential
- MD
- Primary taxonomy
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
- License numbers
- 01097512A IN
TP576 KY
Self-reported in NPPES; status is on the state search - Practice location
- 8333 Naab RD Ste 320, Indianapolis, IN 46260
- Phone
- (317) 338-3000
- Enumerated
- Oct 23, 2014
- Record last updated
- Sep 9, 2025
- Fax
- (317) 583-3099
- Medicare enrollment
- Enrolled (PECOS I20251006001068); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest thoracic surgery (cardiothoracic vascular surgery) physician records → All 136 in Indiana → Look up another NPI →
Also registered at 8333 Naab RD Ste 320
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Anthony Azakie, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1801853197
- Amy Heincker, MSN, RN, CPNPPediatric Nurse Practitioner1447601224
- Sanjay Parikh, MDPediatric Cardiology Physician1891770707
- Leonard Steinberg, MDPediatric Cardiology Physician1194700500
- Megan Zakrzewski, CPNPPediatric Nurse Practitioner1558794248
Verify William Wallen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Licensing Board of Indiana
Search for license 01097512ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William Wallen among 136 thoracic surgery (cardiothoracic vascular surgery) physician records in Indiana
William Wallen, MD is one of 136 thoracic surgery (cardiothoracic vascular surgery) physician records with a practice address in Indiana. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2014, is newer than 92% of them.
- NPI issued2014 · 92% of these records are older, 7% newer
- In a Medicare fileNo · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2007 · median 1995 among the 91 with a school on file
- Record last updated2025 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208G00000X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in Indiana
There are 136 thoracic surgery (cardiothoracic vascular surgery) physician records in Indiana. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 136 in Indiana → Every provider in Indianapolis → Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician nationwide →
The 8 thoracic surgery (cardiothoracic vascular surgery) physician records with the nearest ZIP codes
- Vinu Abraham, M.D.Indianapolis, IN 462601336123249
- Anthony Ascioti, MDIndianapolis, IN 462601386689776
- Anthony Azakie, MDIndianapolis, IN 462601801853197
- Vijay Nuthakki, MDIndianapolis, IN 462601013133222
- Robert Robison, MDIndianapolis, IN 462601164535969
- Nakul Valsangkar, MDIndianapolis, IN 462601437410859
- Kyle Yancey, MDIndianapolis, IN 462601639337769
- Ashish Pulikal, M.DIndianapolis, IN 462561588084685
Common questions
What is William Wallen, MD's NPI number?
William Wallen, MD's National Provider Identifier (NPI) is 1164827945, issued on Oct 23, 2014. An NPI identifies a provider in billing; it is not a license.
Where is William Wallen, MD located?
The NPPES record lists a practice address at 8333 Naab RD Ste 320, Indianapolis, IN, 46260. Phone: (317) 338-3000. Providers update this record themselves, so call before visiting.
How can I verify William Wallen, MD's license?
NPPES lists Indiana license number 01097512A, as entered by the provider. Search the Medical Licensing Board of Indiana at https://www.in.gov/pla/professions/physicians-home/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.