Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MS. KATHRYN KIERAN NP
NPI 1689900946
Nurse Practitioner - Psychiatric/Mental Health in Boston, MA

Active since October 21, 2009PECOS Enrolled
185 BAY STATE RD, BOSTON, MA 02215(617) 353-3047 Get Directions Write a Review

NPPES record last updated: October 6, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Ms. Kathryn Kieran Np NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MS. KATHRYN KIERAN NP (NPI 1689900946) is an individual psychiatric/mental health provider in Boston, Massachusetts, licensed in Massachusetts (RN280937) and active in the NPI registry since October 2009. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1689900946
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameMS. KATHRYN KIERANCredential: NP
Location Address185 BAY STATE RDBoston, MA 02215-1584
Mailing Address185 Bay State RdBoston, MA 02215-1584 · (617) 353-3047
Sole ProprietorNo
Enumeration DateOctober 21, 2009
Last NPPES UpdateOctober 6, 2026
NPPES CertifiedOctober 6, 2026
✔ NPI 1689900946 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in MA · RN280937
185 BAY STATE RD, Boston, MA 02215

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Kathryn Kieran Np is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Kathryn Kieran reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Psychiatry
115 MILL ST
Belmont, MA 02478
  • Reassigned Medicare billing, Massachusetts enrollment
  • 422 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 02215 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Counselor (Professional)
185 BAY STATE RD
BOSTON, MA 02215
Clinic/Center (Mental Health (Including Community Mental Health Center))
185 BAY STATE RD
BOSTON, MA 02215
Student in an Organized Health Care Education/Training Program
185 BAY STATE RD
BOSTON, MA 02215
Psychologist (Counseling)
185 BAY STATE RD
BOSTON, MA 02215
Student in an Organized Health Care Education/Training Program
185 BAY STATE RD
BOSTON, MA 02215
Social Worker (Clinical)
185 BAY STATE RD
BOSTON, MA 02215
Psychologist (Counseling)
185 BAY STATE RD
BOSTON, MA 02215
Psychologist (Clinical)
185 BAY STATE RD
BOSTON, MA 02215

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 Kathryn Kieran's NPI number?

The NPI number for Kathryn Kieran is 1689900946. It was assigned to this individual provider in the NPPES registry on October 21, 2009.

Where is Kathryn Kieran located?

Kathryn Kieran practices at 185 Bay State Rd, Boston, MA 02215. The listed phone number is (617) 353-3047.

What is Kathryn Kieran's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Kathryn Kieran enrolled in Medicare?

Yes. Kathryn Kieran is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Kathryn Kieran's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kathryn Kieran reassigns Medicare benefits to The Mclean Hospital Corporation (Belmont, 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 Kathryn Kieran's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Kathryn Kieran was last updated on October 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 days 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.