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LEAH ELLEN GREGORIO M.D.
NPI 1023465283
Pediatrics in East Hampton, CT

Active since May 18, 2016PECOS Enrolled
42 E HIGH ST, EAST HAMPTON, CT 06424(860) 358-6486 Get Directions Write a Review

NPPES record last updated: August 27, 2019. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 27, 2019, Jul 29, 2019, May 18, 2016 (3 updates tracked since 2016).

About Leah Ellen Gregorio M.d. NPPES

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

LEAH ELLEN GREGORIO M.D. (NPI 1023465283) is an individual pediatrics provider in East Hampton, Connecticut, licensed in Connecticut (63738) and active in the NPI registry since May 2016. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1023465283
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameLEAH ELLEN GREGORIOCredential: M.D.
Location Address42 E HIGH STEast Hampton, CT 06424-1099
Mailing Address90 S Main StMiddletown, CT 06457-3649 · (860) 358-6486
Phone(860) 358-6486
Sole ProprietorNo
Enumeration DateMay 18, 2016
Last NPPES UpdateAugust 27, 20193 updates tracked since enumeration
✔ NPI 1023465283 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in CT · 63738
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
42 E HIGH ST, East Hampton, CT 06424
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Leah Ellen Gregorio M.d. 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.

Medicare Billing Reassignment

Medicare enrollment records show Leah Gregorio reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Middlesex Hospital Dba Family Practice Group Portland
6.4 mi
Medical
595 MAIN ST
Portland, CT 06480
  • Reassigned Medicare billing, Connecticut enrollment
  • Medicare enrollment name: Middlesex Hospital
  • 66 clinicians in this Medicare group
NPI 1568597128 (860) 344-6394

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06424 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 2

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

MIDDLESEX HOSPITAL DBA FAMILY PRACTICE GROUP EAST HAMPTON
Family Medicine
42 E HIGH ST
EAST HAMPTON, CT 06424
Lower Connecticut River Valley Planning Region (860) 344-6394
DR. ANTHONY FRANCIS POSTERARO JR. M.D.
Specialist
42 E HIGH ST, SUITE 203
EAST HAMPTON, CT 06424
Lower Connecticut River Valley Planning Region (860) 267-2593

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 Leah Gregorio's NPI number?

The NPI number for Leah Gregorio is 1023465283. It was assigned to this individual provider in the NPPES registry on May 18, 2016.

Where is Leah Gregorio located?

Leah Gregorio practices at 42 E High St, East Hampton, CT 06424. The listed phone number is (860) 358-6486.

What is Leah Gregorio's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Leah Gregorio enrolled in Medicare?

Yes. Leah Gregorio is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Leah Gregorio's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Leah Gregorio reassigns Medicare benefits to Middlesex Hospital Dba Family Practice Group Portland (Portland, CT). 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 Leah Gregorio's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Leah Gregorio accept?

Health plans from Anthem Blue Cross and Blue Shield list Leah Gregorio 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 Leah Gregorio was last updated on August 27, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years 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.