HANNAH MILLS LICSW
NPI 1801163258
Social Worker - Clinical in Northampton, MA

Active since November 29, 2011PECOS EnrolledAccepts Medicare Assignment
50 PLEASANT ST, NORTHAMPTON, MA 01060(413) 584-6855 Get Directions Write a Review

NPPES record last updated: April 6, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Apr 6, 2020, Nov 13, 2019, Oct 29, 2019 (3 updates tracked since 2019).

About Hannah Mills Licsw NPPES

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

HANNAH MILLS LICSW (NPI 1801163258) is an individual clinical provider in Northampton, Massachusetts, licensed in Massachusetts (120438) and active in the NPI registry since November 2011. She is enrolled in Medicare PECOS, maintains a secondary practice location in Greenfield, and is a graduate of Other (2013).

NPPES Registry Identity

NPI1801163258
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameHANNAH MILLSCredential: LICSW
Location Address50 PLEASANT STNorthampton, MA 01060-4127
Mailing Address50 Pleasant StNorthampton, MA 01060-4127 · (413) 584-6855
Sole ProprietorNo
Medical School CMSOtherGraduated 2013
Enumeration DateNovember 29, 2011
Last NPPES UpdateApril 6, 20203 updates tracked since enumeration
NPPES CertifiedApril 6, 2020
✔ NPI 1801163258 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in MA · 120438
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
50 PLEASANT ST, Northampton, MA 01060

Secondary Practice Location 1

Location 155 Federal StGreenfield, MA 01301-2546 · Phone (413) 772-2935 ext. 4721

Other Identifiers 1

Medicaid1300881MA

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

Hannah Mills Licsw 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 ID9830460609
PECOS Enrollment IDI20170814000378
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 Reassignments

2

Medicare enrollment records show Hannah Mills reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Same address
Mental Health (Including Community Mental Health Center)
50 PLEASANT ST
Northampton, MA 01060
  • Reassigned Medicare billing, Massachusetts enrollment
  • 64 clinicians in this Medicare group
Mental Health (Including Community Mental Health Center)
303 BEECH ST
Holyoke, MA 01040
  • Reassigned Medicare billing, Massachusetts enrollment
  • 144 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 01060 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
$0.00 typical visit price
range $58.86 – $177.36
Typical copayment $0.00 (range $14.71 – $44.34)
Most-billed visit code NA
Established Patient
$73.22 typical visit price
range $19.11 – $144.84
Typical copayment $18.30 (range $4.77 – $36.21)
Most-billed visit code 99213
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.

Registered Nurse
50 PLEASANT ST
NORTHAMPTON, MA 01060
Social Worker (School)
50 PLEASANT ST
NORTHAMPTON, MA 01060
Social Worker (Clinical)
50 PLEASANT ST, SERVICENET
NORTHAMPTON, MA 01060
Psychologist (Clinical)
50 PLEASANT ST
NORTHAMPTON, MA 01060
Social Worker (Clinical)
50 PLEASANT ST
NORTHAMPTON, MA 01060
Counselor (Mental Health)
50 PLEASANT ST
NORTHAMPTON, MA 01060
Health Educator
50 PLEASANT ST
NORTHAMPTON, MA 01060
Social Worker (Clinical)
50 PLEASANT ST
NORTHAMPTON, MA 01060

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 Hannah Mills's NPI number?

The NPI number for Hannah Mills is 1801163258. It was assigned to this individual provider in the NPPES registry on November 29, 2011.

Where is Hannah Mills located?

Hannah Mills practices at 50 Pleasant St, Northampton, MA 01060. The listed phone number is (413) 584-6855.

What is Hannah Mills's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Hannah Mills enrolled in Medicare?

Yes. Hannah Mills 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 organizations bill Medicare for Hannah Mills's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Hannah Mills reassigns Medicare benefits to 2 organizations: Servicenet Inc (Northampton, MA) and River Valley Counseling Center, Inc (Holyoke, MA). Each 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 Hannah Mills'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 Hannah Mills was last updated on April 6, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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.