1. Home
  2. Directory
  3. Indiana
  4. Polis
  5. Anesthesiology
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

THOMAS KNOWLES MD
NPI 1992454466
Anesthesiology in Indianapolis, IN

Active since March 22, 2022PECOS Enrolled
1701 N SENATE BLVD, INDIANAPOLIS, IN 46202(317) 962-8880 Get Directions Write a Review

NPPES record last updated: August 13, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Aug 13, 2026, Jul 5, 2023 (2 updates tracked since 2023).

About Thomas Knowles Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

THOMAS KNOWLES MD (NPI 1992454466) is an individual anesthesiology provider in Indianapolis, Indiana, licensed in Indiana (01100666A) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS and maintains a secondary practice location in Indianapolis.

NPPES Registry Identity

NPI1992454466
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameTHOMAS KNOWLESCredential: MD
Location Address1701 N SENATE BLVDIndianapolis, IN 46202-1239
Mailing Address250 N Shadeland AveIndianapolis, IN 46219-4959
Phone(317) 962-8880
Sole ProprietorYes
Enumeration DateMarch 22, 2022
Last NPPES UpdateAugust 13, 20262 updates tracked since enumeration
NPPES CertifiedAugust 13, 2026
✔ NPI 1992454466 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in IN · 01100666A
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
1701 N SENATE BLVD, Indianapolis, IN 46202
Open in Google Maps ↗

Secondary Practice Location 1

Location 11130 West Michigan Street, Fesler Hall 204Indianapolis, IN 46202-5209 · Phone (317) 274-0076

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Thomas Knowles Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

THOMAS M DONAHUE MD
Anesthesiology
1701 N SENATE BLVD
INDIANAPOLIS, IN 46202
Marion County (317) 577-4200
DR. GINA MARIE DIANTONIO SWARTZEL M.D.
Emergency Medicine
1701 N SENATE BLVD, B401
INDIANAPOLIS, IN 46202
Marion County (317) 962-5975
NASER A KAFEEL DO
Internal Medicine
1701 N SENATE BLVD
INDIANAPOLIS, IN 46202
Marion County (317) 962-8776
ZACHARY JARRETT DO
Internal Medicine (Critical Care Medicine)
1701 N SENATE BLVD
INDIANAPOLIS, IN 46202
Marion County (317) 962-5820
BARBRA A BACHMEIER NP
Nurse Practitioner (Family)
1701 N SENATE BLVD, RM AG 001
INDIANAPOLIS, IN 46202
Marion County (317) 962-3886
MARK H HOYER MD
Pediatrics (Pediatric Cardiology)
1701 N SENATE BLVD
INDIANAPOLIS, IN 46202
Marion County (317) 678-3900
SHALINI K MANCHANDA MD
Internal Medicine (Sleep Medicine)
1701 N SENATE BLVD
INDIANAPOLIS, IN 46202
Marion County (888) 484-3258
SEAN DAVID GUSSICK MD
Radiology (Diagnostic Radiology)
1701 N SENATE BLVD, RADIOLOGY DEPT
INDIANAPOLIS, IN 46202
Marion County (317) 962-5740

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Thomas Knowles's NPI number?

The NPI number for Thomas Knowles is 1992454466. It was assigned to this individual provider in the NPPES registry on March 22, 2022.

Where is Thomas Knowles located?

Thomas Knowles practices at 1701 N Senate Blvd, Indianapolis, IN 46202. The listed phone number is (317) 962-8880.

What is Thomas Knowles's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Thomas Knowles enrolled in Medicare?

Yes. Thomas Knowles is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Thomas Knowles was last updated on August 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.