Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

MRS. CATHERINE LACY MUCCI LCSW
NPI 1609318732
Social Worker - Clinical in Middletown, DE

Active since November 07, 2016PECOS Enrolled
735 MAPLETON AVE STE 200, MIDDLETOWN, DE 19709(302) 224-1400(302) 224-1402 Get Directions Write a Review

NPPES record last updated: July 16, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 16, 2026, May 14, 2026, Oct 10, 2023 and 1 more (4 updates tracked since 2016).

About Mrs. Catherine Lacy Mucci Lcsw NPPES

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

MRS. CATHERINE LACY MUCCI LCSW (NPI 1609318732) is an individual clinical provider in Middletown, Delaware, licensed in Delaware (Q1-0001383) and active in the NPI registry since November 2016. She is enrolled in Medicare PECOS, maintains a secondary practice location in Wilmington, and is a graduate of Other (2010).

NPPES Registry Identity

NPI1609318732
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMRS. CATHERINE LACY MUCCICredential: LCSW
Location Address735 MAPLETON AVE STE 200Middletown, DE 19709-1560
Mailing Address735 Mapleton Ave Ste 200Middletown, DE 19709-1560 · (302) 224-1400 · Fax (302) 224-1402
Fax(302) 224-1402
Sole ProprietorYes
Medical School CMSOtherGraduated 2010
Enumeration DateNovember 7, 2016
Last NPPES UpdateJuly 16, 20264 updates tracked since enumeration
NPPES CertifiedJuly 16, 2026
NPI 1609318732 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 DE · Q1-0001383
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.

735 MAPLETON AVE STE 200, Middletown, DE 19709

Other Names 1

Former Name (1)Catherine Lacy Perasso

Secondary Practice Location 1

Location 11601 Milltown Rd, Suite OneWilmington, DE 19808-4027 · Phone (484) 571-5369

Accepted 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

Mrs. Catherine Lacy Mucci 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 ID6406204064
PECOS Enrollment IDI20231121001866
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, 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.
121 services16 patients
Psychiatric diagnostic evaluation 90791
A psychiatric diagnostic evaluation is a thorough assessment used to identify any mental health conditions you may have. It involves a detailed discussion about your symptoms, thoughts, feelings and behavior patterns. Your medical history and family's mental health history are also considered.
11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19709 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 $57.12 – $173.08
Typical copayment $0.00 (range $14.28 – $43.27)
Most-billed visit code NA
Established Patient
$71.19 typical visit price
range $18.36 – $141.05
Typical copayment $17.79 (range $4.59 – $35.26)
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 15

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Counselor (Mental Health)
735 MAPLETON AVE STE 200
MIDDLETOWN, DE 19709
Counselor (Mental Health)
735 MAPLETON AVE STE 200
MIDDLETOWN, DE 19709
Marriage & Family Therapist
735 MAPLETON AVE STE 200
MIDDLETOWN, DE 19709
Social Worker (Clinical)
735 MAPLETON AVE STE 200
MIDDLETOWN, DE 19709
Marriage & Family Therapist
735 MAPLETON AVE STE 200
MIDDLETOWN, DE 19709
Counselor (Professional)
735 MAPLETON AVE STE 200
MIDDLETOWN, DE 19709
Counselor (Mental Health)
735 MAPLETON AVE STE 200
MIDDLETOWN, DE 19709
Psychiatry & Neurology (Psychiatry)
735 MAPLETON AVE STE 200
MIDDLETOWN, DE 19709

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 Catherine Mucci's NPI number?

The NPI number for Catherine Mucci is 1609318732. It was assigned to this individual provider in the NPPES registry on November 7, 2016. The provider is also known as Catherine Lacy Perasso.

Where is Catherine Mucci located?

Catherine Mucci practices at 735 Mapleton Ave Ste 200, Middletown, DE 19709. The listed phone number is (302) 224-1400.

What is Catherine Mucci's specialty?

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

Is Catherine Mucci enrolled in Medicare?

Yes. Catherine Mucci 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 Catherine Mucci accept?

Health plans from Highmark Blue Cross Blue Shield Delaware list Catherine Mucci 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 Catherine Mucci was last updated on July 16, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.