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DIANE ELIZABETH WALLIS MD
NPI 1659323574
Internal Medicine - Cardiovascular Disease in Carmel, IN

Active since May 17, 2006PECOS Enrolled
13905 GRISHAM DR, CARMEL, IN 46033(630) 310-2118 Get Directions Write a Review

NPPES record last updated: February 9, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Diane Elizabeth Wallis Md NPPES

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

DIANE ELIZABETH WALLIS MD (NPI 1659323574) is an individual cardiovascular disease provider in Carmel, Indiana, licensed in Indiana (01091007A) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1659323574
Entity TypeIndividualFemale
Primary Taxonomy207RC0000X
Provider Legal NameDIANE ELIZABETH WALLISCredential: MD
Location Address13905 GRISHAM DRCarmel, IN 46033-0026
Mailing Address13905 Grisham DrCarmel, IN 46033-0026 · (630) 268-1102
Phone(630) 310-2118
Sole ProprietorNo
Enumeration DateMay 17, 2006
Last NPPES UpdateFebruary 9, 2026
NPPES CertifiedFebruary 9, 2026
✔ NPI 1659323574 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
License✔ Licensed in IN · 01091007A
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
13905 GRISHAM DR, Carmel, IN 46033
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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)

Diane Elizabeth Wallis 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 Diane Wallis reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Advocate Health & Hospitals Corporation
147 mi
Medical Specialty
4440 W 95TH ST
Oak Lawn, IL 60453
  • Reassigned Medicare billing, Illinois enrollment
  • Medicare enrollment name: Advocate Health And Hospitals Corporation
  • 4,870 clinicians in this Medicare group
NPI 1912936014 (847) 390-5900
Edward Hospital
162 mi
General Acute Care Hospital
801 S WASHINGTON ST
Naperville, IL 60540
  • Reassigned Medicare billing, Illinois enrollment
  • 268 clinicians in this Medicare group
NPI 1013969013 (630) 655-0450
Central Dupage Hospital Association
168 mi
General Acute Care Hospital
25 NORTH WINFIELD RD.
Winfield, IL 60190
  • Reassigned Medicare billing, Illinois enrollment
  • 129 clinicians in this Medicare group
NPI 1003864810 (630) 933-1600

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 46033 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
$66.48 typical visit price
range $16.93 – $132.22
Typical copayment $16.62 (range $4.23 – $33.05)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Diane Wallis's NPI number?

The NPI number for Diane Wallis is 1659323574. It was assigned to this individual provider in the NPPES registry on May 17, 2006.

Where is Diane Wallis located?

Diane Wallis practices at 13905 Grisham Dr, Carmel, IN 46033. The listed phone number is (630) 310-2118.

What is Diane Wallis's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Diane Wallis enrolled in Medicare?

Yes. Diane Wallis is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Diane Wallis's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Diane Wallis reassigns Medicare benefits to 3 organizations: Advocate Health & Hospitals Corporation (Oak Lawn, IL), Edward Hospital (Naperville, IL) and Central Dupage Hospital Association (Winfield, IL). 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 Diane Wallis'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 Diane Wallis was last updated on February 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.