MARK IANNUCCILLI LMHC
NPI 1083577977
Counselor - Mental Health in Providence, RI

Active since December 08, 2025PECOS EnrolledAccepts Medicare Assignment
345 BLACKSTONE BLVD STE 2, PROVIDENCE, RI 02906(401) 276-4100 Get Directions Write a Review

NPPES record last updated: December 8, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Mark Iannuccilli Lmhc NPPES

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

MARK IANNUCCILLI LMHC (NPI 1083577977) is an individual mental health provider in Providence, Rhode Island, licensed in Rhode Island (MHC01956) and active in the NPI registry since December 2025. He is enrolled in Medicare PECOS and is a graduate of Other (2022).

NPPES Registry Identity

NPI1083577977
Entity TypeIndividualMale
Primary Taxonomy101YM0800X
Provider Legal NameMARK IANNUCCILLICredential: LMHC
Location Address345 BLACKSTONE BLVD STE 2Providence, RI 02906-4800
Mailing Address345 Blackstone Blvd Ste 2Providence, RI 02906-4829 · (401) 276-4100
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateDecember 8, 2025
NPPES CertifiedDecember 8, 2025
✔ NPI 1083577977 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
License✔ Licensed in RI · MHC01956
345 BLACKSTONE BLVD STE 2, Providence, RI 02906

Accepted 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

Mark Iannuccilli Lmhc 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 ID3476038746
PECOS Enrollment IDI20260403001748
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 Mark Iannuccilli reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mental Health
1329 JEFFERSON BLVD
Warwick, RI 02886
  • Reassigned Medicare billing, Rhode Island enrollment
  • 25 clinicians in this Medicare group

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

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.

Counselor (Addiction (Substance Use Disorder))
345 BLACKSTONE BLVD STE 2
PROVIDENCE, RI 02906
Psychologist
345 BLACKSTONE BLVD STE 2
PROVIDENCE, RI 02906
Psychologist (Clinical)
345 BLACKSTONE BLVD STE 2
PROVIDENCE, RI 02906
Counselor (Addiction (Substance Use Disorder))
345 BLACKSTONE BLVD STE 2
PROVIDENCE, RI 02906
Counselor (Mental Health)
345 BLACKSTONE BLVD STE 2
PROVIDENCE, RI 02906
Psychiatry & Neurology (Psychiatry)
345 BLACKSTONE BLVD STE 2
PROVIDENCE, RI 02906
Psychiatry & Neurology (Psychiatry)
345 BLACKSTONE BLVD STE 2
PROVIDENCE, RI 02906
Occupational Therapist
345 BLACKSTONE BLVD STE 2
PROVIDENCE, RI 02906

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 Mark Iannuccilli's NPI number?

The NPI number for Mark Iannuccilli is 1083577977. It was assigned to this individual provider in the NPPES registry on December 8, 2025.

Where is Mark Iannuccilli located?

Mark Iannuccilli practices at 345 Blackstone Blvd Ste 2, Providence, RI 02906. The listed phone number is (401) 276-4100.

What is Mark Iannuccilli's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Is Mark Iannuccilli enrolled in Medicare?

Yes. Mark Iannuccilli 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 Mark Iannuccilli's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Iannuccilli reassigns Medicare benefits to Arrow Behavioral Health (Warwick, RI). 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 Mark Iannuccilli's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mark Iannuccilli accept?

Health plans from Harvard Pilgrim Health Care list Mark Iannuccilli 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 Mark Iannuccilli was last updated on December 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.