KRISTEN ALICE DERDERIAN CNP
NPI 1407417645
Nurse Practitioner - Primary Care in Saint Louis, MO
About Kristen Alice Derderian Cnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KRISTEN ALICE DERDERIAN CNP (NPI 1407417645) is an individual primary care provider in Saint Louis, Missouri, licensed in Missouri (2021013574) and active in the NPI registry since June 2019. She is enrolled in Medicare PECOS, is affiliated with Brigham And Women's Hospital, and is a graduate of Other (2019).
NPPES Registry Identity
Specialties & Licenses
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
Kristen Alice Derderian Cnp 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
4Medicare enrollment records show Kristen Derderian reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Newton, MA 02462
- Reassigned Medicare billing, Massachusetts enrollment
- 992 clinicians in this Medicare group
Watertown, MA 02472
- Reassigned Medicare billing, Massachusetts enrollment
- 1,103 clinicians in this Medicare group
Westwood, MA 02090
- Reassigned Medicare billing, Massachusetts enrollment
- 18 clinicians in this Medicare group
Brockton, MA 02301
- Reassigned Medicare billing, Massachusetts enrollment
- 264 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 12
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.
Brigham And Women's Hospital
Acute Care Hospitals · Boston, MAFaulkner Hospital-Brigham And Women's
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63127 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 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAINT LOUIS, MO 63127
SAINT LOUIS, MO 63127
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 Kristen Derderian's NPI number?
The NPI number for Kristen Derderian is 1407417645. It was assigned to this individual provider in the NPPES registry on June 27, 2019.
Where is Kristen Derderian located?
Kristen Derderian practices at 12200 Weber Hill Rd Ste 100, Saint Louis, MO 63127. The listed phone number is (314) 698-2500.
What is Kristen Derderian's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Primary Care, with taxonomy code 363LP2300X.
Is Kristen Derderian enrolled in Medicare?
Yes. Kristen Derderian 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 Kristen Derderian's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kristen Derderian reassigns Medicare benefits to 4 organizations: Mass General Brigham Medical Group Suburban Massachusetts Inc (Newton, MA), Steward Medical Group, Inc (Watertown, MA), Mass General Brigham Community Physicians Inc. (Westwood, MA) and Revere Medical Of Massachusetts, PC (Brockton, MA). 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 Kristen Derderian's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Kristen Derderian accept?
Health plans from Anthem Blue Cross and Blue Shield list Kristen Derderian 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 Kristen Derderian affiliated with any hospitals?
According to CMS data, Kristen Derderian is affiliated with Brigham And Women's Hospital and Faulkner Hospital-Brigham And Women's.
When was this NPI record last updated?
The NPPES record for Kristen Derderian was last updated on March 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.