GRAINNE M O'MALLEY MD
NPI 1407230501
Internal Medicine in West Lafayette, IN
About Grainne M O'malley Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GRAINNE M O'MALLEY MD (NPI 1407230501) is an individual internal medicine provider in West Lafayette, Indiana, licensed in Indiana (01080931A) and active in the NPI registry since July 2015. She is enrolled in Medicare PECOS, is affiliated with Franciscan Health Lafayette, and is a graduate of Other (2015).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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
Grainne M O'malley 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.
Medicare Billing Reassignments
2Medicare enrollment records show Grainne O'malley reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Lafayette, IN 47904
- Reassigned Medicare billing, Indiana enrollment
- 671 clinicians in this Medicare group
Indianapolis, IN 46202
- Reassigned Medicare billing, Indiana enrollment
- 5,212 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 8
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.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Franciscan Health Lafayette
Acute Care Hospitals · Lafayette, INIndiana University Health Arnett Hospital
Acute Care Hospitals · Lafayette, INIndiana University Health White Memorial Hospital
Critical Access Hospitals · Monticello, INIndiana University Health Frankfort Inc
Critical Access Hospitals · Frankfort, INFranciscan Health Rensselaer, Inc
Critical Access Hospitals · Rensselaer, INPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 47906 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
Referred Medical Equipment & Supplies CMS DME claims 15
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
WEST LAFAYETTE, IN 47906
WEST LAFAYETTE, IN 47906
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 Grainne O'malley's NPI number?
The NPI number for Grainne O'malley is 1407230501. It was assigned to this individual provider in the NPPES registry on July 17, 2015.
Where is Grainne O'malley located?
Grainne O'malley practices at 253 Sagamore Pkwy W, West Lafayette, IN 47906. The listed phone number is (708) 714-4378.
What is Grainne O'malley's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Grainne O'malley enrolled in Medicare?
Yes. Grainne O'malley 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 Grainne O'malley's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Grainne O'malley reassigns Medicare benefits to 2 organizations: Arnett Clinic, LLC (Lafayette, IN) and Iu Health Medical Group, LLC (Indianapolis, 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 Grainne O'malley's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Grainne O'malley accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and CareSource and 2 other insurers list Grainne O'malley 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 Grainne O'malley affiliated with any hospitals?
According to CMS data, Grainne O'malley is affiliated with Franciscan Health Lafayette, Indiana University Health Arnett Hospital, Indiana University Health White Memorial Hospital, Indiana University Health Frankfort Inc and Franciscan Health Rensselaer, Inc.
When was this NPI record last updated?
The NPPES record for Grainne O'malley was last updated on July 3, 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.
# Grainne M O'malley, MD · NPI 1407230501
Internal Medicine physician in West Lafayette, Indiana. Individual provider, active in the CMS NPPES registry since July 17, 2015.
## Identity
- **NPI:** 1407230501 (Entity type: Individual)
- **Enumerated:** July 17, 2015
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 01080931A (Indiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 253 SAGAMORE PKWY W, West Lafayette, IN 47906-1501
- **Phone:** (708) 714-4378
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Arnett Clinic, LLC (NPI 1881655090, Lafayette, IN); Iu Health Medical Group, LLC (NPI 1326893777, Indianapolis, IN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** July 3, 2023
- **Other identifiers:** Medicaid 300019370 (IN); Other 000001199850
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Source: [NPI Profile](https://npiprofile.com/npi/1407230501) · Data from the CMS NPPES public registry.