KATHLEEN ELIZABETH MAVROGIANNIS CPNP-PC/AC
NPI 1871182055
Nurse Practitioner - Pediatrics in Boston, MA
About Kathleen Elizabeth Mavrogiannis Cpnp-pc/ac NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KATHLEEN ELIZABETH MAVROGIANNIS CPNP-PC/AC (NPI 1871182055) is an individual pediatrics provider in Boston, Massachusetts, licensed in Massachusetts (RN2327836) and active in the NPI registry since January 2021. She is enrolled in Medicare PECOS and maintains a secondary practice location in Waltham.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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)
Kathleen Elizabeth Mavrogiannis Cpnp-pc/ac is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Kathleen Mavrogiannis reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 1,358 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 02115 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.
BOSTON, MA 02115
BOSTON, MA 02115
BOSTON, MA 02115
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 Kathleen Mavrogiannis's NPI number?
The NPI number for Kathleen Mavrogiannis is 1871182055. It was assigned to this individual provider in the NPPES registry on January 13, 2021. The provider is also known as Kathleen Elizabeth Joumas.
Where is Kathleen Mavrogiannis located?
Kathleen Mavrogiannis practices at 300 Longwood Ave, Boston, MA 02115. The listed phone number is (617) 355-6000.
What is Kathleen Mavrogiannis's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Pediatrics, with taxonomy code 363LP0200X.
Is Kathleen Mavrogiannis enrolled in Medicare?
Yes. Kathleen Mavrogiannis is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Kathleen Mavrogiannis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kathleen Mavrogiannis reassigns Medicare benefits to Children's Hospital Pediatric Associates, Inc (Boston, MA). 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 Kathleen Mavrogiannis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Kathleen Mavrogiannis accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Kathleen Mavrogiannis 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 Kathleen Mavrogiannis was last updated on January 13, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Kathleen Elizabeth Mavrogiannis, CPNP-PC/AC · NPI 1871182055
Pediatrics physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since January 13, 2021.
## Identity
- **NPI:** 1871182055 (Entity type: Individual)
- **Enumerated:** January 13, 2021
- **Primary specialty:** Nurse Practitioner - Pediatrics · taxonomy 363LP0200X
- **State license:** RN2327836 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 LONGWOOD AVE, Boston, MA 02115-5724
- **Phone:** (617) 355-6000
## 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:** Children's Hospital Pediatric Associates, Inc (NPI 1457306664, Boston, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 13, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1871182055) · Data from the CMS NPPES public registry.