MRS. KRISTIN ELIZABETH GROSSMAN FNP-C
NPI 1861884264
Nurse Practitioner in Saint Louis, MO
About Mrs. Kristin Elizabeth Grossman Fnp-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. KRISTIN ELIZABETH GROSSMAN FNP-C (NPI 1861884264) is an individual nurse practitioner in Saint Louis, Missouri, licensed in Missouri (F0215537) and active in the NPI registry since February 2015. She is enrolled in Medicare PECOS, maintains 4 additional practice locations, and is a graduate of Other (2014).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 4
Other Identifiers 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 and accepts Medicare assignment
Mrs. Kristin Elizabeth Grossman Fnp-c 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
6Medicare enrollment records show Kristin Grossman reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fenton, MO 63026
- Reassigned Medicare billing, Illinois and Missouri enrollments
- 25 clinicians in this Medicare group
Fenton, MO 63026
- Reassigned Medicare billing, Missouri enrollment
- 741 clinicians in this Medicare group
Mount Vernon, IL 62864
- Reassigned Medicare billing, Illinois enrollment
- 296 clinicians in this Medicare group
Madison, WI 53715
- Reassigned Medicare billing, Wisconsin enrollment
- 1,377 clinicians in this Medicare group
Beaver Dam, WI 53916
- Reassigned Medicare billing, Wisconsin enrollment
- 606 clinicians in this Medicare group
Oklahoma City, OK 73116
- Reassigned Medicare billing, Oklahoma enrollment
- 507 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 63126 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 14
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Kristin Grossman's NPI number?
The NPI number for Kristin Grossman is 1861884264. It was assigned to this individual provider in the NPPES registry on February 23, 2015.
Where is Kristin Grossman located?
Kristin Grossman practices at 30 Ronnies Plz, Saint Louis, MO 63126. The listed phone number is (314) 989-6807.
What is Kristin Grossman's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Kristin Grossman enrolled in Medicare?
Yes. Kristin Grossman 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 Kristin Grossman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kristin Grossman reassigns Medicare benefits to 6 organizations: Ssm Medical Group, Inc. (Fenton, MO), Ssm Health Care St Louis (Fenton, MO), Physician Services Corporation Of Southern Illinois Inc. (Mount Vernon, IL), Dean Health Systems, Inc (Madison, WI), Agnesian Healthcare (Beaver Dam, WI) and 1 more organization, listed in the Medicare section above. 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 Kristin Grossman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Kristin Grossman 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 Kristin Grossman 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 Kristin Grossman was last updated on December 12, 2022. 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.
# Mrs. Kristin Elizabeth Grossman, FNP-C · NPI 1861884264
Nurse Practitioner physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since February 23, 2015.
## Identity
- **NPI:** 1861884264 (Entity type: Individual)
- **Enumerated:** February 23, 2015
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** F0215537 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 30 RONNIES PLZ, Saint Louis, MO 63126-3552
- **Phone:** (314) 989-6807
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Ssm Medical Group, Inc. (NPI 1700966207, Fenton, MO); Ssm Health Care St Louis (NPI 1275586174, Fenton, MO); Physician Services Corporation Of Southern Illinois Inc. (NPI 1831101807, Mount Vernon, IL); Dean Health Systems, Inc (NPI 1053358846, Madison, WI); Agnesian Healthcare (NPI 1700817657, Beaver Dam, WI); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** December 12, 2022
- **Other identifiers:** Medicaid 1861884264 (WI)
---
Source: [NPI Profile](https://npiprofile.com/npi/1861884264) · Data from the CMS NPPES public registry.