KAITLYN GREENBERG ARNP
NPI 1790297729
Nurse Practitioner in Saint Peters, MO
About Kaitlyn Greenberg Arnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KAITLYN GREENBERG ARNP (NPI 1790297729) is an individual nurse practitioner in Saint Peters, Missouri, licensed in Missouri (2018044129) and active in the NPI registry since October 2017. She is enrolled in Medicare PECOS, is affiliated with Mercy Hospital South, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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
Kaitlyn Greenberg Arnp 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
5Medicare enrollment records show Kaitlyn Greenberg reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chesterfield, MO 63017
- Reassigned Medicare billing, Missouri enrollment
- 263 clinicians in this Medicare group
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 744 clinicians in this Medicare group
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 611 clinicians in this Medicare group
Cuba, MO 65453
- Reassigned Medicare billing, Missouri enrollment
- 1,487 clinicians in this Medicare group
Bella Vista, AR 72714
- Reassigned Medicare billing, Arkansas enrollment
- 472 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercy Hospital South
Acute Care Hospitals · Saint Louis, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63376 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 PETERS, MO 63376
SAINT PETERS, MO 63376
SAINT PETERS, MO 63376
SAINT PETERS, MO 63376
SAINT PETERS, MO 63376
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 Kaitlyn Greenberg's NPI number?
The NPI number for Kaitlyn Greenberg is 1790297729. It was assigned to this individual provider in the NPPES registry on October 31, 2017. The provider is also known as Kaitlyn B Greenberg Kaitlyn Baum.
Where is Kaitlyn Greenberg located?
Kaitlyn Greenberg practices at 10 Hospital Dr, Saint Peters, MO 63376. The listed phone number is (636) 916-7272.
What is Kaitlyn Greenberg's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Kaitlyn Greenberg enrolled in Medicare?
Yes. Kaitlyn Greenberg 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 Kaitlyn Greenberg's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kaitlyn Greenberg reassigns Medicare benefits to 5 organizations: Mercy Aco Clinical Services Inc (Chesterfield, MO), Mercy Clinic East Communities (Saint Louis, MO), Physician Groups Lc (Saint Louis, MO), Mercy Clinic Springfield Communities (Cuba, MO) and Mercy Health Northwest Arkansas Communities (Bella Vista, AR). 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 Kaitlyn Greenberg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Kaitlyn Greenberg accept?
Health plans from UnitedHealthcare list Kaitlyn Greenberg 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 Kaitlyn Greenberg affiliated with any hospitals?
According to CMS data, Kaitlyn Greenberg is affiliated with Mercy Hospital South.
When was this NPI record last updated?
The NPPES record for Kaitlyn Greenberg was last updated on April 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Kaitlyn Greenberg, ARNP · NPI 1790297729
Nurse Practitioner physician in Saint Peters, Missouri. Individual provider, active in the CMS NPPES registry since October 31, 2017.
## Identity
- **NPI:** 1790297729 (Entity type: Individual)
- **Enumerated:** October 31, 2017
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** 2018044129 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 10 HOSPITAL DR, Saint Peters, MO 63376-1659
- **Phone:** (636) 916-7272 · **Fax:** (636) 916-7274
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Mercy Aco Clinical Services Inc (NPI 1063965093, Chesterfield, MO); Mercy Clinic East Communities (NPI 1043574940, Saint Louis, MO); Physician Groups Lc (NPI 1285664268, Saint Louis, MO); Mercy Clinic Springfield Communities (NPI 1063541704, Cuba, MO); Mercy Health Northwest Arkansas Communities (NPI 1396173514, Bella Vista, AR) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of South Florida College Of Medicine, class of 2017
## Record status
- **NPPES last updated:** April 29, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1790297729) · Data from the CMS NPPES public registry.