DEIRDRE MARGARET CALLAHAN DNP, WHNP-BC
NPI 1811715816
Nurse Practitioner - Women's Health in Fall River, MA
About Deirdre Margaret Callahan Dnp, Whnp-bc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DEIRDRE MARGARET CALLAHAN DNP, WHNP-BC (NPI 1811715816) is an individual women's health provider in Fall River, Massachusetts, licensed in Massachusetts (RN2378659) and active in the NPI registry since September 2024. She is enrolled in Medicare PECOS and maintains a secondary practice location in Taunton.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Deirdre Margaret Callahan Dnp, Whnp-bc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Deirdre Callahan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Fall River, MA 02720
- Reassigned Medicare billing, Massachusetts enrollment
- 3 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 02720 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 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FALL RIVER, MA 02720
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 Deirdre Callahan's NPI number?
The NPI number for Deirdre Callahan is 1811715816. It was assigned to this individual provider in the NPPES registry on September 30, 2024.
Where is Deirdre Callahan located?
Deirdre Callahan practices at 300 Hanover St Ste 2E, Fall River, MA 02720. The listed phone number is (508) 673-2400.
What is Deirdre Callahan's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Women's Health, with taxonomy code 363LW0102X.
Is Deirdre Callahan enrolled in Medicare?
Yes. Deirdre Callahan is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Deirdre Callahan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Deirdre Callahan reassigns Medicare benefits to Citizens For Citizens, Inc. (Fall River, 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 Deirdre Callahan'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 Deirdre Callahan was last updated on November 7, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.
# Deirdre Margaret Callahan, DNP, WHNP-BC · NPI 1811715816
Women's Health physician in Fall River, Massachusetts. Individual provider, active in the CMS NPPES registry since September 30, 2024.
## Identity
- **NPI:** 1811715816 (Entity type: Individual)
- **Enumerated:** September 30, 2024
- **Primary specialty:** Nurse Practitioner - Women's Health · taxonomy 363LW0102X
- **State license:** RN2378659 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 HANOVER ST STE 2E, Fall River, MA 02720-5451
- **Phone:** (508) 673-2400
## 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:** Citizens For Citizens, Inc. (NPI 1295870673, Fall River, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 7, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1811715816) · Data from the CMS NPPES public registry.