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DR. MATTHEW JOHN LETTIERI MD
NPI 1376281766
Anesthesiology in Riverhead, NY

Active since May 25, 2022PECOS EnrolledAccepts Medicare Assignment
1 HEROES WAY, RIVERHEAD, NY 11901(631) 548-6000 Get Directions Write a Review

NPPES record last updated: February 10, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Matthew John Lettieri Md NPPES

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

DR. MATTHEW JOHN LETTIERI MD (NPI 1376281766) is an individual anesthesiology provider in Riverhead, New York, licensed in New York (337711) and active in the NPI registry since May 2022. He is enrolled in Medicare PECOS, is affiliated with Peconic Bay Medical Center, and is a graduate of Other (2022).

NPPES Registry Identity

NPI1376281766
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. MATTHEW JOHN LETTIERICredential: MD
Location Address1 HEROES WAYRiverhead, NY 11901-2058
Mailing Address1 Heroes WayRiverhead, NY 11901-2058 · (914) 493-7000
Phone(631) 548-6000
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateMay 25, 2022
Last NPPES UpdateFebruary 10, 2026
NPPES CertifiedFebruary 10, 2026
✔ NPI 1376281766 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in NY · 337711
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
1 HEROES WAY, Riverhead, NY 11901
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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

Dr. Matthew John Lettieri Md 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 ID5496239287
PECOS Enrollment IDI20260319002211
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 Matthew Lettieri reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

North Shore - Lij Anesthesiology, PC
72 mi
Anesthesiology
480 BEDFORD RD BLDG B
Chappaqua, NY 10514
  • Reassigned Medicare billing, New York enrollment
  • 1,406 clinicians in this Medicare group
NPI 1417401266 (914) 666-8866

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

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Peconic Bay Medical Center

Acute Care Hospitals · Riverhead, NY
3/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number330107
Location1 Heros WayRiverhead, NY 11901 · Suffolk County
Emergency services Birthing friendly

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.

DR. ORSEOLA ARAPI MD
Student in an Organized Health Care Education/Training Program
1 HEROES WAY
RIVERHEAD, NY 11901
Suffolk County (631) 546-6446
DR. NICOLE MELISSA CASTRO DO
Student in an Organized Health Care Education/Training Program
1 HEROES WAY
RIVERHEAD, NY 11901
Suffolk County (631) 548-6446
JOANNE ELIZABETH COTRONE RPA-C
Physician Assistant
1 HEROES WAY
RIVERHEAD, NY 11901
Suffolk County (631) 548-6200
JARED VINCENT NASSO DO
Student in an Organized Health Care Education/Training Program
1 HEROES WAY
RIVERHEAD, NY 11901
Suffolk County (631) 548-6446
MARCELA TROCHA MD, MSC
Student in an Organized Health Care Education/Training Program
1 HEROES WAY
RIVERHEAD, NY 11901
Suffolk County (631) 548-6446
SANOORI WELMILLAGE DO
Student in an Organized Health Care Education/Training Program
1 HEROES WAY
RIVERHEAD, NY 11901
Suffolk County (631) 548-6446
COURTNEY MALIA CLEMONS
Physician Assistant
1 HEROES WAY
RIVERHEAD, NY 11901
Suffolk County (631) 548-6000
KASIDY SMITH PA-C
Physician Assistant
1 HEROES WAY
RIVERHEAD, NY 11901
Suffolk County (631) 538-8860

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 Matthew Lettieri's NPI number?

The NPI number for Matthew Lettieri is 1376281766. It was assigned to this individual provider in the NPPES registry on May 25, 2022.

Where is Matthew Lettieri located?

Matthew Lettieri practices at 1 Heroes Way, Riverhead, NY 11901. The listed phone number is (631) 548-6000.

What is Matthew Lettieri's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Matthew Lettieri enrolled in Medicare?

Yes. Matthew Lettieri 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 Matthew Lettieri's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Lettieri reassigns Medicare benefits to North Shore - Lij Anesthesiology, PC (Chappaqua, NY). 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 Matthew Lettieri's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Matthew Lettieri affiliated with any hospitals?

According to CMS data, Matthew Lettieri is affiliated with Peconic Bay Medical Center.

When was this NPI record last updated?

The NPPES record for Matthew Lettieri was last updated on February 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.