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

MS. KACY CHIACHIO PMHNP
NPI 1619702990
Nurse Practitioner - Psychiatric/Mental Health in Lancaster, NH

Active since September 05, 2024PECOS EnrolledAccepts Medicare Assignment
173 MIDDLE ST, LANCASTER, NH 03584(603) 342-5000(603) 788-5285 Get Directions Write a Review

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

Record update history: Oct 8, 2026, Aug 11, 2026, Mar 13, 2026 and 1 more (4 updates tracked since 2024).

About Ms. Kacy Chiachio Pmhnp NPPES

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

MS. KACY CHIACHIO PMHNP (NPI 1619702990) is an individual psychiatric/mental health provider in Lancaster, New Hampshire, licensed in New Hampshire (086025-23) and active in the NPI registry since September 2024. She is enrolled in Medicare PECOS and is a graduate of Other (2025).

NPPES Registry Identity

NPI1619702990
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameMS. KACY CHIACHIOCredential: PMHNP
Location Address173 MIDDLE STLancaster, NH 03584-3508
Mailing Address173 Middle StLancaster, NH 03584-3508 · (603) 342-5000 · Fax (603) 788-5285
Phone(603) 342-5000
Fax(603) 788-5285
Sole ProprietorYes
Medical School CMSOtherGraduated 2025
Enumeration DateSeptember 5, 2024
Last NPPES UpdateOctober 8, 20264 updates tracked since enumeration
NPPES CertifiedOctober 8, 2026
✔ NPI 1619702990 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 · 086025-23
173 MIDDLE ST, Lancaster, NH 03584
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care.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

Ms. Kacy Chiachio Pmhnp 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 ID9931675253
PECOS Enrollment IDI20260415001358
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 Kacy Chiachio reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Weeks Medical Center
Same address
Rural Health
173 MIDDLE ST
Lancaster, NH 03584
  • Reassigned Medicare billing, New Hampshire enrollment
  • Also billed through NPI 1265536718 (New Hampshire)
  • 126 clinicians in this Medicare group
NPI 1003820838 (603) 788-2521

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 03584 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.

MRS. DEBORAH DICASTRO-SCHAFFER ARNP
Nurse Practitioner (Family)
173 MIDDLE ST
LANCASTER, NH 03584
Coos County (603) 788-4911
WEEKS MEDICAL CENTER
Clinic/Center (Rural Health)
173 MIDDLE ST
LANCASTER, NH 03584
Coos County (603) 788-2521
MS. ANNA STRAWBRIDGE LINGELBACH-LORENZ PA-C
Physician Assistant (Medical)
173 MIDDLE ST
LANCASTER, NH 03584
Coos County (603) 788-5260
TAMMY ROSE LAZOTT APRN
Nurse Practitioner
173 MIDDLE ST
LANCASTER, NH 03584
Coos County (603) 788-4911
ALYSON BLANCHETTE OTR/L
Occupational Therapist (Physical Rehabilitation)
173 MIDDLE ST
LANCASTER, NH 03584
Coos County (603) 788-5009
BRITTINI LYNNE CUSSON LICSW, LCSW
Social Worker (Clinical)
173 MIDDLE ST
LANCASTER, NH 03584
Coos County (603) 788-5075
DR. ANNA LEE RUELLE D.P.M.
Podiatrist (Foot & Ankle Surgery)
173 MIDDLE ST
LANCASTER, NH 03584
Coos County (603) 788-5029
WEEKS MEDICAL CENTER
Medicare Defined Swing Bed Unit
173 MIDDLE ST
LANCASTER, NH 03584
Coos County (603) 788-4911

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 Kacy Chiachio's NPI number?

The NPI number for Kacy Chiachio is 1619702990. It was assigned to this individual provider in the NPPES registry on September 5, 2024.

Where is Kacy Chiachio located?

Kacy Chiachio practices at 173 Middle St, Lancaster, NH 03584. The listed phone number is (603) 342-5000.

What is Kacy Chiachio's specialty?

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

Is Kacy Chiachio enrolled in Medicare?

Yes. Kacy Chiachio 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 Kacy Chiachio's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kacy Chiachio reassigns Medicare benefits to Weeks Medical Center (Lancaster, 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 Kacy Chiachio's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Kacy Chiachio accept?

Health plans from Anthem Blue Cross and Blue Shield and Harvard Pilgrim Health Care list Kacy Chiachio 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 Kacy Chiachio was last updated on October 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.