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DR. AARON DANIEL LEIS M.D.
NPI 1255394862
Anesthesiology in Indianapolis, IN

Active since April 07, 2006PECOS Enrolled
53.58/100
CMS Quality Rating
6032 TYBALT DR, INDIANAPOLIS, IN 46254(317) 299-2253 Get Directions Write a Review

NPPES record last updated: March 15, 2010. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Aaron Daniel Leis M.d. NPPES

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

DR. AARON DANIEL LEIS M.D. (NPI 1255394862) is an individual anesthesiology provider in Indianapolis, Indiana, licensed in Indiana (01058434A) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1255394862
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. AARON DANIEL LEISCredential: M.D.
Location Address6032 TYBALT DRIndianapolis, IN 46254-5162
Mailing Address6032 Tybalt DriveIndianapolis, IN 46254 · (317) 299-2253
Phone(317) 299-2253
Sole ProprietorNo
Enumeration DateApril 7, 2006
Last NPPES UpdateMarch 15, 2010
✔ NPI 1255394862 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in IN · 01058434A
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.
6032 TYBALT DR, Indianapolis, IN 46254
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Aaron Daniel Leis M.d. 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.

Medicare Billing Reassignments

2

Medicare enrollment records show Aaron Leis reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Allcare Clinical Associates, PA
359 mi
Anesthesiology
34 GRANBY ST
Asheville, NC 28801
  • Reassigned Medicare billing, North Carolina enrollment
  • 15 clinicians in this Medicare group
NPI 1144259961 (239) 610-0775
Medstream Anesthesia PLLC
750 mi
Anesthesiology
2221 LAKESIDE BLVD STE 600
Richardson, TX 75082
  • Reassigned Medicare billing, North Carolina enrollment
  • 493 clinicians in this Medicare group
NPI 1649616160 (828) 210-9386

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Anesthesia for lens surgery 00142
Anesthesia for lens surgery involves administering medication to numb the eye area, ensuring you feel no pain during the procedure. This can be a local anesthetic (numbing only the eye area) or general (where you're asleep). It helps make the surgery comfortable and stress-free.
128 services124 patients
Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand 01810
Anesthesia for procedures on the forearm, wrist, and hand involves administering medication to block sensation in these areas. This helps ensure comfort and painlessness during surgeries or treatments involving nerves, muscles, tendons, and tissue in these regions.
57 services57 patients
Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) 64415
This procedure involves injecting a numbing agent or steroid into your arm's nerve bundle. It's done to manage pain or inflammation. The injection helps block nerve signals that cause discomfort, providing relief. It's a safe, common procedure.
47 services46 patients
Anesthesia for other procedure on top of arm bone and shoulder joint 01630
Anesthesia for a procedure on the arm bone or shoulder joint involves using medication to numb the area or make you unconscious during surgery. This ensures you feel no pain during the procedure. It's a common and safe practice in medical surgeries.
28 services27 patients
Anesthesia for other procedure on forearm, wrist, or hand bones 01830
Anesthesia for procedures on forearm, wrist, or hand bones involves administering medications to block sensation in the specific area. It ensures you don't feel pain during the procedure. It can be local (numbing a small area) or regional (numbing a larger part of the body).
28 services28 patients
Anesthesia for other procedure on skin of arms, legs, and front body 00400
Anesthesia for procedures on the skin of your arms, legs, and front body is a service that numbs the area being treated. This ensures you don't feel pain during procedures like biopsies, stitches, or minor surgeries. It's administered through a small injection or a topical cream.
22 services22 patients

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

53.58/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality45.39
Improvement Activities40

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 Aaron Leis's NPI number?

The NPI number for Aaron Leis is 1255394862. It was assigned to this individual provider in the NPPES registry on April 7, 2006.

Where is Aaron Leis located?

Aaron Leis practices at 6032 Tybalt Dr, Indianapolis, IN 46254. The listed phone number is (317) 299-2253.

What is Aaron Leis's specialty?

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

Is Aaron Leis enrolled in Medicare?

Yes. Aaron Leis is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Aaron Leis's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Aaron Leis reassigns Medicare benefits to 2 organizations: Allcare Clinical Associates, PA (Asheville, NC) and Medstream Anesthesia PLLC (Richardson, TX). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Aaron Leis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Aaron Leis was last updated on March 15, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years 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.