RENA ZERBINI LITWIN LCSW
NPI 1487050548
Social Worker - Clinical in New London, CT

Active since November 17, 2014PECOS EnrolledAccepts Medicare Assignment
93.27/100
CMS Quality Rating
365 MONTAUK AVE, NEW LONDON, CT 06320(860) 442-0711 Get Directions Write a Review

NPPES record last updated: May 26, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 26, 2026, Mar 25, 2026 (2 updates tracked since 2026).

About Rena Zerbini Litwin Lcsw NPPES

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

RENA ZERBINI LITWIN LCSW (NPI 1487050548) is an individual clinical provider in New London, Connecticut, licensed in Connecticut (8816) and active in the NPI registry since November 2014. She is enrolled in Medicare PECOS and is a graduate of Other (2011).

NPPES Registry Identity

NPI1487050548
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameRENA ZERBINI LITWINCredential: LCSW
Location Address365 MONTAUK AVENew London, CT 06320-4700
Mailing Address365 Montauk AveNew London, CT 06320-4700 · (860) 892-7042
Sole ProprietorNo
Medical School CMSOtherGraduated 2011
Enumeration DateNovember 17, 2014
Last NPPES UpdateMay 26, 20262 updates tracked since enumeration
NPPES CertifiedMay 26, 2026
NPI 1487050548 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 CT · 8816
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.
365 MONTAUK AVE, New London, CT 06320

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

Rena Zerbini Litwin 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 ID5597083501
PECOS Enrollment IDI20150422001839
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 for crisis, first hour 90839
Psychotherapy for crisis is a supportive service provided during times of intense distress. In the first hour, the therapist will help you express your feelings, understand the crisis better, and work on immediate coping strategies. This is aimed at reducing stress and promoting emotional well-being.
17 services17 patients
Psychotherapy for crisis, each additional 30 minutes 90840
Psychotherapy for crisis is a therapeutic service focused on helping individuals navigate through immediate crises. Each additional 30-minute session provides more time to explore emotions, thoughts, and behaviors related to the crisis, and develop coping strategies.
17 services17 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06320 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 $60.82 – $183.10
Typical copayment $0.00 (range $15.20 – $45.77)
Most-billed visit code NA
Established Patient
$75.55 typical visit price
range $19.76 – $149.26
Typical copayment $18.88 (range $4.94 – $37.31)
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.

93.27/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality81.72
Promoting Interoperability78.03
Improvement Activities40

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 (Diabetes Educator)
365 MONTAUK AVE
NEW LONDON, CT 06320
Social Worker (Clinical)
365 MONTAUK AVE
NEW LONDON, CT 06320
Family Medicine (Sleep Medicine)
365 MONTAUK AVE
NEW LONDON, CT 06320
Advanced Practice Midwife
365 MONTAUK AVE
NEW LONDON, CT 06320
Emergency Medicine
365 MONTAUK AVE
NEW LONDON, CT 06320
Anesthesiology
365 MONTAUK AVE
NEW LONDON, CT 06320
Psychiatry & Neurology (Psychiatry)
365 MONTAUK AVE
NEW LONDON, CT 06320
Nurse Practitioner (Family)
365 MONTAUK AVE
NEW LONDON, CT 06320

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 Rena Litwin's NPI number?

The NPI number for Rena Litwin is 1487050548. It was assigned to this individual provider in the NPPES registry on November 17, 2014.

Where is Rena Litwin located?

Rena Litwin practices at 365 Montauk Ave, New London, CT 06320. The listed phone number is (860) 442-0711.

What is Rena Litwin's specialty?

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

Is Rena Litwin enrolled in Medicare?

Yes. Rena Litwin 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 Rena Litwin accept?

Health plans from Providence Health Plan list Rena Litwin 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 Rena Litwin was last updated on May 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.