JILL JEFFERSON
NPI 1679436281
Nurse Practitioner - Psychiatric/Mental Health in Nashua, NH

Active since December 09, 2025PECOS EnrolledAccepts Medicare Assignment
2300 SOUTHWOOD DR, NASHUA, NH 03063(603) 315-7685 Get Directions Write a Review

NPPES record last updated: April 29, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Apr 29, 2026, Dec 9, 2025 (2 updates tracked since 2025).

About Jill Jefferson NPPES

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

JILL JEFFERSON (NPI 1679436281) is an individual psychiatric/mental health provider in Nashua, New Hampshire, licensed in New Hampshire (065967-23) and active in the NPI registry since December 2025. She is enrolled in Medicare PECOS and is a graduate of Other (2026).

NPPES Registry Identity

NPI1679436281
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameJILL JEFFERSON
Location Address2300 SOUTHWOOD DRNashua, NH 03063-1899
Mailing Address2300 Southwood DrNashua, NH 03063-1899
Sole ProprietorNo
Medical School CMSOtherGraduated 2026
Enumeration DateDecember 9, 2025
Last NPPES UpdateApril 29, 20262 updates tracked since enumeration
NPPES CertifiedApril 29, 2026
✔ NPI 1679436281 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 NH · 065967-23
2300 SOUTHWOOD DR, Nashua, NH 03063

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

Jill Jefferson 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 ID8921577677
PECOS Enrollment IDI20260512002886
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 Jill Jefferson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Pain Medicine
280 MAIN STREET, SUITE 330
Nashua, NH 03060
  • Reassigned Medicare billing, New Hampshire enrollment
  • 13 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 03063 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
$89.14 typical visit price
range $57.75 – $174.26
Typical copayment $22.28 (range $14.43 – $43.56)
Most-billed visit code 99203
Established Patient
$101.54 typical visit price
range $18.70 – $142.15
Typical copayment $25.38 (range $4.67 – $35.53)
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.

Family Medicine
2300 SOUTHWOOD DR, FAMILY MEDICINE
NASHUA, NH 03063
Pharmacist (Ambulatory Care)
2300 SOUTHWOOD DR
NASHUA, NH 03063
Advanced Practice Midwife
2300 SOUTHWOOD DR
NASHUA, NH 03063
Physician Assistant
2300 SOUTHWOOD DR
NASHUA, NH 03063
Nurse Practitioner (Women's Health)
2300 SOUTHWOOD DR
NASHUA, NH 03063
Nurse Practitioner (Family)
2300 SOUTHWOOD DR
NASHUA, NH 03063
Advanced Practice Midwife
2300 SOUTHWOOD DR, DARTMOUTH HITCHCOCK - OB/GYN
NASHUA, NH 03063
Internal Medicine (Allergy & Immunology)
2300 SOUTHWOOD DR
NASHUA, NH 03063

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 Jill Jefferson's NPI number?

The NPI number for Jill Jefferson is 1679436281. It was assigned to this individual provider in the NPPES registry on December 9, 2025.

Where is Jill Jefferson located?

Jill Jefferson practices at 2300 Southwood Dr, Nashua, NH 03063. The listed phone number is (603) 315-7685.

What is Jill Jefferson's specialty?

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

Is Jill Jefferson enrolled in Medicare?

Yes. Jill Jefferson 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 Jill Jefferson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jill Jefferson reassigns Medicare benefits to Pain Solutions PLLC (Nashua, NH). 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 Jill Jefferson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Jill Jefferson accept?

Health plans from Anthem Blue Cross and Blue Shield and Harvard Pilgrim Health Care list Jill Jefferson 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 Jill Jefferson was last updated on April 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.