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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MS. KAREN MARZITELLI APRN
NPI 1205873783
Nurse Practitioner - Adult Health in West Haven, CT

Active since June 01, 2006PECOS Enrolled
950 CAMPBELL AVE, WEST HAVEN, CT 06516(202) 937-4972(202) 937-3403 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Ms. Karen Marzitelli Aprn NPPES

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

MS. KAREN MARZITELLI APRN (NPI 1205873783) is an individual adult health provider in West Haven, Connecticut, licensed in Connecticut (000881) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1205873783
Entity TypeIndividualFemale
Primary Taxonomy363LA2200X
Provider Legal NameMS. KAREN MARZITELLICredential: APRN
Location Address950 CAMPBELL AVEWest Haven, CT 06516-2770
Mailing Address20 Todds Mill CirMadison, CT 06443-3455 · (202) 245-1425
Phone(202) 937-4972
Fax(202) 937-3403
Sole ProprietorNo
Enumeration DateJune 1, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1205873783 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Adult HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2200X
License✔ Licensed in CT · 000881
950 CAMPBELL AVE, West Haven, CT 06516
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Karen Marzitelli Aprn is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06516 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
$93.86 typical visit price
range $60.82 – $183.10
Typical copayment $23.46 (range $15.20 – $45.77)
Most-billed visit code 99203
Established Patient
$106.68 typical visit price
range $19.76 – $149.26
Typical copayment $26.67 (range $4.94 – $37.31)
Most-billed visit code 99214
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.

LESLIE TANQUILUT PHARMD
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
950 CAMPBELL AVE, PHARMACY SERVICE (119)
WEST HAVEN, CT 06516
South Central Connecticut Planning Region (203) 932-5711
NICHOLAS ANDREW VISSICCHIO PH.D.
Psychologist (Clinical)
950 CAMPBELL AVE
WEST HAVEN, CT 06516
South Central Connecticut Planning Region (203) 932-5711
DEVON MACKAY LMSW
Social Worker
950 CAMPBELL AVE
WEST HAVEN, CT 06516
South Central Connecticut Planning Region (203) 932-5711
MR. JAMES MICHAEL ALEKSUNES
Counselor
950 CAMPBELL AVE, MS 122V
WEST HAVEN, CT 06516
South Central Connecticut Planning Region (203) 932-5711
MRS. TRACEY PASCARELLA RD
Dietitian, Registered
950 CAMPBELL AVE
WEST HAVEN, CT 06516
South Central Connecticut Planning Region (203) 932-5711
DR. ANTHONY JAMES LISI D.C.
Chiropractor
950 CAMPBELL AVE, BUILDING 2, FLOOR 4
WEST HAVEN, CT 06516
South Central Connecticut Planning Region (203) 932-5711
MS. EVANGELINE BENOIT
Nurse Anesthetist, Certified Registered
950 CAMPBELL AVE
WEST HAVEN, CT 06516
South Central Connecticut Planning Region (203) 932-5711
MS. MELISSA ANN SIMONE LCSW
Social Worker (Clinical)
950 CAMPBELL AVE
WEST HAVEN, CT 06516
South Central Connecticut Planning Region (860) 694-4875

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 Karen Marzitelli's NPI number?

The NPI number for Karen Marzitelli is 1205873783. It was assigned to this individual provider in the NPPES registry on June 1, 2006.

Where is Karen Marzitelli located?

Karen Marzitelli practices at 950 Campbell Ave, West Haven, CT 06516. The listed phone number is (202) 937-4972.

What is Karen Marzitelli's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.

Is Karen Marzitelli enrolled in Medicare?

Yes. Karen Marzitelli is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Karen Marzitelli 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 24 days 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.