BRETT WALKER MD
NPI 1821677105
Internal Medicine in Indianapolis, IN

Active since April 05, 2021PECOS Enrolled
1120 W MICHIGAN ST # CL642, INDIANAPOLIS, IN 46202(317) 278-2686 Get Directions Write a Review

NPPES record last updated: October 31, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 12, 2021, Apr 5, 2021 (2 updates tracked since 2021).

About Brett Walker Md NPPES

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

BRETT WALKER MD (NPI 1821677105) is an individual internal medicine provider in Indianapolis, Indiana, licensed in Indiana (01093857A) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS and maintains a secondary practice location in Indianapolis.

NPPES Registry Identity

NPI1821677105
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameBRETT WALKERCredential: MD
Location Address1120 W MICHIGAN ST # CL642Indianapolis, IN 46202-5209
Mailing Address1120 W Michigan St # Cl642Indianapolis, IN 46202-5209 · (317) 278-2686
Sole ProprietorNo
Enumeration DateApril 5, 2021
Last NPPES UpdateOctober 31, 20242 updates tracked since enumeration
NPPES CertifiedOctober 31, 2024
✔ NPI 1821677105 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in IN · 01093857A
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1120 W MICHIGAN ST # CL642, Indianapolis, IN 46202

Secondary Practice Location 1

Location 11701 Senate BlvdIndianapolis, IN 46202-1239 · Phone (317) 962-8776 · Fax (317) 963-5285

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Brett Walker 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.

Medicare Billing Reassignments

3

Medicare enrollment records show Brett Walker reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Family Medicine
1701 N SENATE BLVD
Indianapolis, IN 46202
  • Reassigned Medicare billing, Indiana enrollment
  • 737 clinicians in this Medicare group
General Practice
1701 N SENATE BLVD
Indianapolis, IN 46202
  • Reassigned Medicare billing, Indiana enrollment
  • 5,212 clinicians in this Medicare group
Specialist
7230 ARBUCKLE CMNS # 178
Brownsburg, IN 46112
  • Reassigned Medicare billing, Indiana enrollment
  • 28 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 46202 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$122.49 typical visit price
range $53.07 – $161.76
Typical copayment $30.62 (range $13.26 – $40.44)
Most-billed visit code 99204
Established Patient
$94.22 typical visit price
range $16.93 – $132.22
Typical copayment $23.55 (range $4.23 – $33.05)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Hospitalist
1120 W MICHIGAN ST # CL642
INDIANAPOLIS, IN 46202
Student in an Organized Health Care Education/Training Program
1120 W MICHIGAN ST # CL642
INDIANAPOLIS, IN 46202
Student in an Organized Health Care Education/Training Program
1120 W MICHIGAN ST # CL642
INDIANAPOLIS, IN 46202
Student in an Organized Health Care Education/Training Program
1120 W MICHIGAN ST # CL642
INDIANAPOLIS, IN 46202
Internal Medicine
1120 W MICHIGAN ST # CL642
INDIANAPOLIS, IN 46202
Student in an Organized Health Care Education/Training Program
1120 W MICHIGAN ST # CL642
INDIANAPOLIS, IN 46202
Anesthesiology
1120 W MICHIGAN ST # CL642
INDIANAPOLIS, IN 46202
Student in an Organized Health Care Education/Training Program
1120 W MICHIGAN ST # CL642
INDIANAPOLIS, IN 46202

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 Brett Walker's NPI number?

The NPI number for Brett Walker is 1821677105. It was assigned to this individual provider in the NPPES registry on April 5, 2021.

Where is Brett Walker located?

Brett Walker practices at 1120 W Michigan St # Cl642, Indianapolis, IN 46202. The listed phone number is (317) 278-2686.

What is Brett Walker's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Brett Walker enrolled in Medicare?

Yes. Brett Walker is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Brett Walker's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Brett Walker reassigns Medicare benefits to 3 organizations: University Family Physicians, Inc. (Indianapolis, IN), Iu Health Medical Group, LLC (Indianapolis, IN) and Arm Specialists, LLC (Brownsburg, IN). 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 Brett Walker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Brett Walker accept?

Health plans from CareSource and Cigna Healthcare list Brett Walker 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.

When was this NPI record last updated?

The NPPES record for Brett Walker was last updated on October 31, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 months 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.