1. Home
  2. Directory
  3. Pennsylvania
  4. Murrysville
  5. Allergy Immunology
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

SEAN MICHAEL GALLAGHER
NPI 1255954368
Allergy & Immunology in Murrysville, PA

Active since May 22, 2020PECOS EnrolledAccepts Medicare Assignment
4208 TRIANGLE LN, MURRYSVILLE, PA 15632(724) 837-4070(724) 837-3316 Get Directions Write a Review

NPPES record last updated: October 9, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 9, 2026, May 22, 2020 (2 updates tracked since 2020).

About Sean Michael Gallagher NPPES

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

SEAN MICHAEL GALLAGHER (NPI 1255954368) is an individual allergy & immunology provider in Murrysville, Pennsylvania, licensed in Pennsylvania (MD482451) and active in the NPI registry since May 2020. He is enrolled in Medicare PECOS and is a graduate of Other (2020).

NPPES Registry Identity

NPI1255954368
Entity TypeIndividualMale
Primary Taxonomy207K00000X
Provider Legal NameSEAN MICHAEL GALLAGHER
Location Address4208 TRIANGLE LNMurrysville, PA 15632-1357
Mailing AddressPo Box 603725Charlotte, NC 28260-3725 · (828) 575-2625 · Fax (828) 350-2174
Phone(724) 837-4070
Fax(724) 837-3316
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateMay 22, 2020
Last NPPES UpdateOctober 9, 20262 updates tracked since enumeration
NPPES CertifiedOctober 9, 2026
✔ NPI 1255954368 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207K00000X
License✔ Licensed in PA · MD482451
Definition
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.
4208 TRIANGLE LN, Murrysville, PA 15632
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter Health, Ambetter Health of Delaware and more.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

Sean Michael Gallagher 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 ID345662417
PECOS Enrollment IDI20250908004065
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 Sean Gallagher reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Allergy Partners, PLLC
Same address
Allergy & Immunology
4208 TRIANGLE LN
Murrysville, PA 15632
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 2 clinicians in this Medicare group
NPI 1932805801 (724) 837-4070

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 3

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

ELLEN LU MD
Allergy & Immunology
4208 TRIANGLE LN
MURRYSVILLE, PA 15632
Westmoreland County (724) 837-4070
ALLERGY PARTNERS, PLLC
Allergy & Immunology
4208 TRIANGLE LN
MURRYSVILLE, PA 15632
Westmoreland County (724) 837-4070
MRS. JENNIFER ASHLEY GIALLORETO PA-C
Physician Assistant
4208 TRIANGLE LN
MURRYSVILLE, PA 15632
Westmoreland County (724) 837-4070

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 Sean Gallagher's NPI number?

The NPI number for Sean Gallagher is 1255954368. It was assigned to this individual provider in the NPPES registry on May 22, 2020.

Where is Sean Gallagher located?

Sean Gallagher practices at 4208 Triangle Ln, Murrysville, PA 15632. The listed phone number is (724) 837-4070.

What is Sean Gallagher's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is Sean Gallagher enrolled in Medicare?

Yes. Sean Gallagher 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 Sean Gallagher's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sean Gallagher reassigns Medicare benefits to Allergy Partners, PLLC (Murrysville, PA). 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 Sean Gallagher's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Sean Gallagher accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Buckeye Health Plan and UnitedHealthcare list Sean Gallagher 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 Sean Gallagher was last updated on October 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.