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WILLIAM KEITH LAGASSE LCSW
NPI 1871716522
Social Worker - Clinical in Lewiston, ME

Active since April 11, 2007PECOS EnrolledAccepts Medicare Assignment
98.06/100
CMS Quality Rating
105 MIDDLE ST STE 2, LEWISTON, ME 04240(207) 576-9645(207) 784-6021 Get Directions Write a Review

NPPES record last updated: May 8, 2008. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About William Keith Lagasse Lcsw NPPES

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

WILLIAM KEITH LAGASSE LCSW (NPI 1871716522) is an individual clinical provider in Lewiston, Maine, licensed in Maine (LC11562) and active in the NPI registry since April 2007. He is enrolled in Medicare PECOS and is a graduate of Other (2005).

NPPES Registry Identity

NPI1871716522
Entity TypeIndividualMale
Primary Taxonomy1041C0700X
Provider Legal NameWILLIAM KEITH LAGASSECredential: LCSW
Location Address105 MIDDLE ST STE 2Lewiston, ME 04240-7037
Mailing Address105 Middle St Ste 2Lewiston, ME 04240-7037 · (207) 576-9645 · Fax (207) 784-6021
Phone(207) 576-9645
Fax(207) 784-6021
Sole ProprietorYes
Medical School CMSOtherGraduated 2005
Enumeration DateApril 11, 2007
Last NPPES UpdateMay 8, 2008
✔ NPI 1871716522 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 ME · LC11562
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.
105 MIDDLE ST STE 2, Lewiston, ME 04240
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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, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

William Keith Lagasse Lcsw 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 ID9537232491
PECOS Enrollment IDI20080725000108
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.

Areas of Expertise CMS Part B claims 2

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.
192 services30 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.
111 services29 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 04240 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 $53.26 – $162.77
Typical copayment $0.00 (range $13.31 – $40.69)
Most-billed visit code NA
Established Patient
$66.74 typical visit price
range $16.90 – $132.79
Typical copayment $16.68 (range $4.22 – $33.19)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

98.06/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality86.13
Promoting Interoperability100
Improvement Activities40

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 William Lagasse's NPI number?

The NPI number for William Lagasse is 1871716522. It was assigned to this individual provider in the NPPES registry on April 11, 2007.

Where is William Lagasse located?

William Lagasse practices at 105 Middle St Ste 2, Lewiston, ME 04240. The listed phone number is (207) 576-9645.

What is William Lagasse's specialty?

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

Is William Lagasse enrolled in Medicare?

Yes. William Lagasse 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.

What insurance does William Lagasse accept?

Health plans from Anthem Blue Cross and Blue Shield and Harvard Pilgrim Health Care list William Lagasse 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 William Lagasse was last updated on May 8, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.