MS. KRISTEN ES LIBBY LICSW
NPI 1700873635
Social Worker in Manchester, NH

Q: What is Kristen Libby's NPI number?

The NPI number for Kristen Libby is 1700873635. It was assigned to this individual provider in the NPPES registry on October 5, 2005. The provider is also known as Ms. Kristen E Sederquist Licsw.

Q: What is Kristen Libby's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

Q: When was this NPI record last updated?

The NPPES record for Kristen Libby was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.

Active since October 05, 2005PECOS EnrolledAccepts Medicare Assignment

138 WEBSTER ST, MANCHESTER, NH 03104(603) 645-5977(603) 645-5980 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Ms. Kristen Es Libby Licsw NPPES

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

MS. KRISTEN ES LIBBY LICSW (NPI 1700873635) is an individual social worker in Manchester, New Hampshire, licensed in New Hampshire (898) and active in the NPI registry since October 2005. She is enrolled in Medicare PECOS and is a graduate of Other (1996).

NPPES Registry Identity

NPI1700873635

Entity TypeIndividualFemale

Primary Taxonomy104100000X

Provider Legal NameMS. KRISTEN ES LIBBYCredential: LICSW

Location Address138 WEBSTER STManchester, NH 03104-2512

Mailing AddressPo Box 3300Manchester, NH 03105-3300 · (603) 645-5977 · Fax (603) 645-5980

Phone(603) 645-5977

Fax(603) 645-5980

Sole ProprietorNo

Medical School CMSOtherGraduated 1996

Enumeration DateOctober 5, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1700873635 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers

Taxonomy Code104100000X

License✔ Licensed in NH · 898

Definition

A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.

138 WEBSTER ST, Manchester, NH 03104

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Other Names 1

Former Name (1)Ms. Kristen E Sederquist Licsw

Other Identifiers 2

Other144001671NH01Anthem

Medicaid30422713NH

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from NH Healthy Families, 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. Kristen Es Libby 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 ID9133113343

PECOS Enrollment IDI20040412000788

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 Kristen Libby reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Jwalant Vadalia MD PC

Same address

Psychiatry

138 WEBSTER STREET
Manchester, NH 03104

Reassigned Medicare billing, New Hampshire enrollment
13 clinicians in this Medicare group

NPI 1346329133 (603) 645-5977

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Psychotherapy, 45 minutes 90834

Psychotherapy is a treatment method where you converse with a therapist about your thoughts, feelings, and behaviors. In a 45-minute session, the therapist assists you in understanding and managing your mental health concerns, improving emotional wellness, and promoting personal growth.

140 services44 patients

Family psychotherapy with patient, 50 minutes 90847

Family psychotherapy is a 50-minute session where a therapist helps the patient and their family understand and manage mental health issues. It's a collaborative process that aims to improve communication, solve family problems, understand and handle special family situations, and create a better functioning home environment.

127 services115 patients

Psychotherapy, 1 hour 90837

Psychotherapy is a therapeutic interaction or treatment between a trained professional and a patient. In a 1-hour session, you'll talk about your feelings, thoughts, and behaviors to help identify and manage mental health issues. This process aids in personal growth, healing, and improved well-being.

92 services38 patients

Family psychotherapy without patient, 50 minutes 90846

Family psychotherapy without the patient is a 50-minute session where a therapist talks with family members to understand and resolve issues impacting the family dynamic. The patient is not present, allowing the family to freely discuss concerns and develop strategies for improvement.

53 services44 patients

Psychotherapy, 30 minutes 90832

Psychotherapy is a therapeutic interaction or treatment between a trained professional and a patient. In a 30-minute session, the therapist helps you explore feelings, thoughts, and behaviors to better understand yourself and manage life's challenges.

52 services28 patients

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.

DR. MICHAEL SPATCHER M.D.

Psychiatry & Neurology (Psychiatry)

138 WEBSTER ST
MANCHESTER, NH 03104

Hillsborough County (603) 645-5977

MEAGAN ETCHELLS LENTZ PSY.D.

Clinical Neuropsychologist

138 WEBSTER ST
MANCHESTER, NH 03104

Hillsborough County (603) 645-5977

HETAL R. DAVE MD

Internal Medicine

138 WEBSTER ST
MANCHESTER, NH 03104

Hillsborough County (603) 663-7030

SAMUEL J. GOLDMAN DO

Internal Medicine (Geriatric Medicine)

138 WEBSTER ST
MANCHESTER, NH 03104

Hillsborough County (603) 663-7030

DR. AKASH JWALANT VADALIA DO, MPH

Psychiatry & Neurology (Psychiatry)

138 WEBSTER ST
MANCHESTER, NH 03104

Hillsborough County (603) 645-5977

CYNTHIA ANN CORREIA APRN

Nurse Practitioner (Family)

138 WEBSTER ST, SENIOR HEALTH PRIMARY CARE
MANCHESTER, NH 03104

Hillsborough County (603) 663-7030

DEBORAH IRENE MOORE ARNP

Nurse Practitioner

138 WEBSTER ST
MANCHESTER, NH 03104

Hillsborough County (603) 663-7030

JAMES BEAUREGARD PHD

Clinical Neuropsychologist

138 WEBSTER ST
MANCHESTER, NH 03104

Hillsborough County (603) 645-5977

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 Kristen Libby's NPI number?

The NPI number for Kristen Libby is 1700873635. It was assigned to this individual provider in the NPPES registry on October 5, 2005. The provider is also known as Ms. Kristen E Sederquist Licsw.

Where is Kristen Libby located?

Kristen Libby practices at 138 Webster St, Manchester, NH 03104. The listed phone number is (603) 645-5977.

What is Kristen Libby's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

Is Kristen Libby enrolled in Medicare?

Yes. Kristen Libby 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 Kristen Libby's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kristen Libby reassigns Medicare benefits to Jwalant Vadalia MD PC (Manchester, 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 Kristen Libby's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Kristen Libby accept?

Health plans from Ambetter from NH Healthy Families, Anthem Blue Cross and Blue Shield and Harvard Pilgrim Health Care list Kristen Libby 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 Kristen Libby was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.