KAITLIN ROSE GRIGORYEV
NPI 1619601770
Nurse Practitioner - Family in Germantown, WI
About Kaitlin Rose Grigoryev NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KAITLIN ROSE GRIGORYEV (NPI 1619601770) is an individual family provider in Germantown, Wisconsin, licensed in Wisconsin (13152) and active in the NPI registry since July 2022. She is enrolled in Medicare PECOS, is affiliated with Ascension Columbia St Mary's Hospital Milwaukee, and is a graduate of Other (2022).
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
Kaitlin Rose Grigoryev 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
2Medicare enrollment records show Kaitlin Grigoryev reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mequon, WI 53097
- Reassigned Medicare billing, Wisconsin enrollment
- Medicare enrollment name: Columbia St Marys Hospital Milwaukee Inc
- 856 clinicians in this Medicare group
Glendale, WI 53212
- Reassigned Medicare billing, Wisconsin enrollment
- 1,343 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 2
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 Columbia St Mary's Hospital Milwaukee
Acute Care Hospitals · Milwaukee, WIAscension SE Wisconsin Hospital
Acute Care Hospitals · Milwaukee, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53022 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 17
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 Kaitlin Grigoryev's NPI number?
The NPI number for Kaitlin Grigoryev is 1619601770. It was assigned to this individual provider in the NPPES registry on July 14, 2022.
Where is Kaitlin Grigoryev located?
Kaitlin Grigoryev practices at N112w15415 Mequon Rd, Germantown, WI 53022. The listed phone number is (262) 250-7800.
What is Kaitlin Grigoryev's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Kaitlin Grigoryev enrolled in Medicare?
Yes. Kaitlin Grigoryev 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 Kaitlin Grigoryev's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kaitlin Grigoryev reassigns Medicare benefits to 2 organizations: Columbia St. Mary's Hospital Milwaukee, Inc (Mequon, WI) and Ascension Medical Group-Southeast Wisconsin Inc (Glendale, WI). 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 Kaitlin Grigoryev's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Kaitlin Grigoryev accept?
Health plans from Anthem Blue Cross and Blue Shield and Network Health list Kaitlin Grigoryev 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 Kaitlin Grigoryev affiliated with any hospitals?
According to CMS data, Kaitlin Grigoryev is affiliated with Ascension Columbia St Mary's Hospital Milwaukee and Ascension SE Wisconsin Hospital.
When was this NPI record last updated?
The NPPES record for Kaitlin Grigoryev was last updated on February 15, 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.
# Kaitlin Rose Grigoryev · NPI 1619601770
Family physician in Germantown, Wisconsin. Individual provider, active in the CMS NPPES registry since July 14, 2022.
## Identity
- **NPI:** 1619601770 (Entity type: Individual)
- **Enumerated:** July 14, 2022
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 13152 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** N112W15415 MEQUON RD, Germantown, WI 53022-3410
- **Phone:** (262) 250-7800
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Columbia St. Mary's Hospital Milwaukee, Inc (NPI 1710928221, Mequon, WI); Ascension Medical Group-Southeast Wisconsin Inc (NPI 1609881077, Glendale, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** February 15, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1619601770) · Data from the CMS NPPES public registry.