DR. THOMAS RICHARD MAHER JR. MD
NPI 1225248958
Anesthesiology in Louisville, KY

Active since May 23, 2007PECOS EnrolledAccepts Medicare Assignment
81.7/100
CMS Quality Rating
200 ABRAHAM FLEXNER WAY, ANESTHESIA DEPARTMENT, LOUISVILLE, KY 40202(502) 587-4203(502) 587-4155 Get Directions Write a Review

NPPES record last updated: May 25, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 25, 2023, Apr 25, 2018, Mar 17, 2018 and 1 more (4 updates tracked since 2017).

About Dr. Thomas Richard Maher Jr. Md NPPES

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

DR. THOMAS RICHARD MAHER JR. MD (NPI 1225248958) is an individual anesthesiology provider in Louisville, Kentucky, licensed in Indiana (01089553A) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS, is affiliated with Norton Hospitals, Inc, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1225248958
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. THOMAS RICHARD MAHER JR.Credential: MD
Location Address200 ABRAHAM FLEXNER WAY, ANESTHESIA DEPARTMENTLouisville, KY 40202-2877
Mailing Address250 N Shadeland AveIndianapolis, IN 46219-4959
Fax(502) 587-4155
Sole ProprietorNo
Medical School CMSIndiana University School Of MedicineGraduated 2002
Enumeration DateMay 23, 2007
Last NPPES UpdateMay 25, 20234 updates tracked since enumeration
NPPES CertifiedMay 25, 2023
✔ NPI 1225248958 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
Licenses✔ Licensed in IN · 01089553A✔ Licensed in MI · 4301079512✔ Licensed in KY · 42034✔ Licensed in VA · 0101242586✔ Licensed in OH · 35.217457
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.
200 ABRAHAM FLEXNER WAY, Louisville, KY 40202

Secondary Practice Locations 2

Location 12139 Auburn AveCincinnati, OH 45219-2906 · Phone (513) 585-0577
Location 211700 N Meridian StCarmel, IN 46032-4656 · Phone (317) 577-4200 · Fax (317) 577-9503

Other Identifiers 2

Medicaid7100044230KY
Medicaid200907830IN

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Thomas Richard Maher Jr. Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1153495650
PECOS Enrollment IDI20080731000778
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

7

Medicare enrollment records show Thomas Maher reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Critical Care Medicine
200 ABRAHAM FLEXNER WAY
Louisville, KY 40202
  • Reassigned Medicare billing, Kentucky enrollment
  • Medicare enrollment name: University Of Louisville Physicians Inc
  • 2,337 clinicians in this Medicare group
Anesthesiology
200 E CHESTNUT ST
Louisville, KY 40202
  • Reassigned Medicare billing, Kentucky enrollment
  • 526 clinicians in this Medicare group
Anesthesiology
200 E CHESTNUT ST
Louisville, KY 40202
  • Reassigned Medicare billing, Kentucky enrollment
  • 130 clinicians in this Medicare group
Anesthesiology
4000 KRESGE WAY
Louisville, KY 40207
  • Reassigned Medicare billing, Kentucky enrollment
  • 125 clinicians in this Medicare group
General Practice
340 W TENTH ST
Indianapolis, IN 46202
  • Reassigned Medicare billing, Indiana enrollment
  • 1,781 clinicians in this Medicare group
Pain Medicine
6225 N STATE HIGHWAY 161 STE 200
Irving, TX 75038
  • Reassigned Medicare billing, Michigan enrollment
  • 905 clinicians in this Medicare group
Anesthesiology
2000 E LAMAR BLVD, SUITE 400
Arlington, TX 76006
  • Reassigned Medicare billing, Indiana enrollment
  • 287 clinicians in this Medicare group

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 5

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 extensive surgery on spine 00670
Anesthesia for extensive spine surgery involves medication to block pain and make you unconscious during the procedure. It ensures comfort and prevents movement. Two types may be used: general (you sleep) or regional (numbs a large area). The choice depends on the surgery specifics and your health.
28 services28 patients
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731
This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.
22 services21 patients
Anesthesia for procedure on gallbladder, pancreas, or liver using an endoscope 00732
This procedure involves using an endoscope, a flexible tube with a light and camera, to examine or treat your gallbladder, pancreas, or liver. Anesthesia is administered to ensure you're comfortable and pain-free during the procedure.
13 services13 patients
Anesthesia for other procedure on neck area (1 year or older) 00320
Anesthesia for a procedure on the neck area is a medical service provided to ensure you remain comfortable and pain-free during the operation. It involves administering medication to numb the neck region or to induce sleep. The method chosen depends on the specific procedure and your overall health.
12 services11 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.
12 services11 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Norton Hospitals, Inc

Acute Care Hospitals · Louisville, KY
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number180088
Location200 East Chestnut StreetLouisville, KY 40202 · Jefferson County
Emergency services Birthing friendly

Baptist Health Louisville

Acute Care Hospitals · Louisville, KY
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number180130
Location4000 Kresge WayLouisville, KY 40207 · Jefferson County
Emergency services Birthing friendly

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.

81.7/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality78.48
Improvement Activities40

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.

Pharmacist
200 ABRAHAM FLEXNER WAY, ADMINISTRATION
LOUISVILLE, KY 40202
Internal Medicine
200 ABRAHAM FLEXNER WAY
LOUISVILLE, KY 40202
Radiology (Diagnostic Radiology)
200 ABRAHAM FLEXNER WAY
LOUISVILLE, KY 40202
Nurse Practitioner
200 ABRAHAM FLEXNER WAY
LOUISVILLE, KY 40202
Internal Medicine (Nephrology)
200 ABRAHAM FLEXNER WAY
LOUISVILLE, KY 40202
Pharmacy (Community/Retail Pharmacy)
200 ABRAHAM FLEXNER WAY
LOUISVILLE, KY 40202
Nurse Practitioner (Family)
200 ABRAHAM FLEXNER WAY
LOUISVILLE, KY 40202
Emergency Medicine
200 ABRAHAM FLEXNER WAY
LOUISVILLE, KY 40202

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 Maher's NPI number?

The NPI number for Thomas Maher is 1225248958. It was assigned to this individual provider in the NPPES registry on May 23, 2007.

Where is Thomas Maher located?

Thomas Maher practices at 200 Abraham Flexner Way Anesthesia Department, Louisville, KY 40202. The listed phone number is (502) 587-4203.

What is Thomas Maher's specialty?

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

Is Thomas Maher enrolled in Medicare?

Yes. Thomas Maher is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Thomas Maher's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Maher reassigns Medicare benefits to 7 organizations: University Of Louisville Phyisicians, Inc. (Louisville, KY), Professional Anesthesia Services Of Kentucky PLLC (Louisville, KY), Universal Anesthesia Services LLC (Louisville, KY), Northstar Anesthesia Of Kentucky, PLLC (Louisville, KY), Indiana University Health Care Associates, Inc (Indianapolis, IN) and 2 more organizations, listed in the Medicare section above. 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 Thomas Maher's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Thomas Maher accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter of Tennessee and CareSource list Thomas Maher as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Thomas Maher affiliated with any hospitals?

According to CMS data, Thomas Maher is affiliated with Norton Hospitals, Inc and Baptist Health Louisville.

When was this NPI record last updated?

The NPPES record for Thomas Maher was last updated on May 25, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.