HILARY MASSEY MD
NPI 1750813291
Psychiatry & Neurology - Psychiatry in Indianapolis, IN
About Hilary Massey Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HILARY MASSEY MD (NPI 1750813291) is an individual psychiatry provider in Indianapolis, Indiana, licensed in Indiana (01094223A) and active in the NPI registry since April 2017. She is enrolled in Medicare PECOS, is affiliated with Ascension St Vincent Hospital, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 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
Hilary Massey 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 Reassignment
Medicare enrollment records show Hilary Massey reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Indianapolis, IN 46260
- Reassigned Medicare billing, Indiana enrollment
- 99 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 3
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ascension St Vincent Hospital
Acute Care Hospitals · Indianapolis, INAscension St Vincent Carmel
Acute Care Hospitals · Carmel, INPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 46260 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
INDIANAPOLIS, IN 46260
INDIANAPOLIS, IN 46260
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 Hilary Massey's NPI number?
The NPI number for Hilary Massey is 1750813291. It was assigned to this individual provider in the NPPES registry on April 3, 2017.
Where is Hilary Massey located?
Hilary Massey practices at 8401 Harcourt Rd, Indianapolis, IN 46260. The listed phone number is (317) 338-4600.
What is Hilary Massey's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Hilary Massey enrolled in Medicare?
Yes. Hilary Massey 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 organization bills Medicare for Hilary Massey's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Hilary Massey reassigns Medicare benefits to St. Vincent Hospital & Health Care Center, Inc. (Indianapolis, IN). The 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 Hilary Massey's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Hilary Massey accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, CareSource and Cigna Healthcare list Hilary Massey 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 Hilary Massey affiliated with any hospitals?
According to CMS data, Hilary Massey is affiliated with Ascension St Vincent Hospital and Ascension St Vincent Carmel.
When was this NPI record last updated?
The NPPES record for Hilary Massey was last updated on September 23, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Hilary Massey, MD · NPI 1750813291
Psychiatry physician in Indianapolis, Indiana. Individual provider, active in the CMS NPPES registry since April 3, 2017.
## Identity
- **NPI:** 1750813291 (Entity type: Individual)
- **Enumerated:** April 3, 2017
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** 01094223A (Indiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 8401 HARCOURT RD, Indianapolis, IN 46260-2036
- **Phone:** (317) 338-4600
## 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:** St. Vincent Hospital & Health Care Center, Inc. (NPI 1689869893, Indianapolis, IN), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** September 23, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1750813291) · Data from the CMS NPPES public registry.