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KATHERINE IRENE WELTER NP
NPI 1265264972
Nurse Practitioner - Psychiatric/Mental Health in Boston, MA

Active since August 20, 2024PECOS EnrolledAccepts Medicare Assignment
234 W CANTON ST, BOSTON, MA 02116(781) 608-2723 Get Directions Write a Review

NPPES record last updated: July 8, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 8, 2025, Aug 20, 2024 (2 updates tracked since 2024).

About Katherine Irene Welter Np NPPES

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

KATHERINE IRENE WELTER NP (NPI 1265264972) is an individual psychiatric/mental health provider in Boston, Massachusetts, licensed in New York (F406150) and active in the NPI registry since August 2024. She is enrolled in Medicare PECOS, maintains a secondary practice location in New York, and is a graduate of Other (2024).

NPPES Registry Identity

NPI1265264972
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameKATHERINE IRENE WELTERCredential: NP
Location Address234 W CANTON STBoston, MA 02116-5814
Mailing Address234 W Canton St Unit 1Boston, MA 02116-5814 · (781) 608-2723
Phone(781) 608-2723
Sole ProprietorNo
Medical School CMSOtherGraduated 2024
Enumeration DateAugust 20, 2024
Last NPPES UpdateJuly 8, 20252 updates tracked since enumeration
NPPES CertifiedJuly 8, 2025
✔ NPI 1265264972 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 NY · F406150
234 W CANTON ST, Boston, MA 02116
Open in Google Maps ↗

Secondary Practice Location 1

Location 1274 Madison Ave Rm 1501New York, NY 10016-0701 · Phone (212) 203-1773 · Fax (646) 665-4427

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cigna Healthcare, Cigna HealthCare of Florida, Inc., Oscar Health and more.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

Katherine Irene Welter Np 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.

PECOS PAC ID8426585258
PECOS Enrollment IDI20241218001567
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 Katherine Welter reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Rivia Medical PLLC
186 mi
Psychiatric/Mental Health
274 MADISON AVE RM 1501
New York, NY 10016
  • Reassigned Medicare billing, New York enrollment
  • 79 clinicians in this Medicare group
NPI 1134644032 (212) 203-1773

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 02116 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.

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 Katherine Welter's NPI number?

The NPI number for Katherine Welter is 1265264972. It was assigned to this individual provider in the NPPES registry on August 20, 2024.

Where is Katherine Welter located?

Katherine Welter practices at 234 W Canton St, Boston, MA 02116. The listed phone number is (781) 608-2723.

What is Katherine Welter's specialty?

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

Is Katherine Welter enrolled in Medicare?

Yes. Katherine Welter 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 organization bills Medicare for Katherine Welter's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Welter reassigns Medicare benefits to Rivia Medical PLLC (New York, NY). 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 Katherine Welter's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Katherine Welter accept?

Health plans from Cigna HealthCare of Florida, Inc., Cigna Healthcare, Oscar Health, Oscar Health Maintenance Organization of Florida and UnitedHealthcare list Katherine Welter 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 Katherine Welter was last updated on July 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.