HILLARY S KROLL
NPI 1073262689
Obstetrics & Gynecology in Saint Louis, MO
About Hillary S Kroll NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HILLARY S KROLL (NPI 1073262689) is an individual obstetrics & gynecology provider in Saint Louis, Missouri, licensed in Missouri (2026001069) and active in the NPI registry since March 2022. She is enrolled in Medicare PECOS, maintains a secondary practice location in Los Angeles, and is a graduate of Other (2022).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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)
Hillary S Kroll is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Hillary Kroll reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Saint Louis, MO 63104
- Reassigned Medicare billing, Missouri enrollment
- 1,294 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 63117 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.
SAINT LOUIS, MO 63117
SAINT LOUIS, MO 63117
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 Hillary Kroll's NPI number?
The NPI number for Hillary Kroll is 1073262689. It was assigned to this individual provider in the NPPES registry on March 21, 2022.
Where is Hillary Kroll located?
Hillary Kroll practices at 1031 Bellevue Ave, Saint Louis, MO 63117. The listed phone number is (314) 617-2000.
What is Hillary Kroll's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Hillary Kroll enrolled in Medicare?
Yes. Hillary Kroll is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Hillary Kroll's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Hillary Kroll reassigns Medicare benefits to Ssm Health Care Group (Saint Louis, MO). 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 Hillary Kroll's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Hillary Kroll accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 4 other insurers list Hillary Kroll 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 Hillary Kroll was last updated on May 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Hillary S Kroll · NPI 1073262689
Obstetrics & Gynecology physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since March 21, 2022.
## Identity
- **NPI:** 1073262689 (Entity type: Individual)
- **Enumerated:** March 21, 2022
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 2026001069 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 1031 BELLEVUE AVE, Saint Louis, MO 63117-1818
- **Phone:** (314) 617-2000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Ssm Health Care Group (NPI 1306589544, Saint Louis, MO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** May 7, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1073262689) · Data from the CMS NPPES public registry.