DR. PHILIP GIARRUSSO DO
NPI 1144849563
Emergency Medicine in Plainview, NY
About Dr. Philip Giarrusso Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. PHILIP GIARRUSSO DO (NPI 1144849563) is an individual emergency medicine provider in Plainview, New York, licensed in New York (322985) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS, is affiliated with Ns/lij Hs Southside Hospital, and is a graduate of Liberty Univ College Of Osteopathic Medicine (2020).
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
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. Philip Giarrusso Do 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.
Medicare Billing Reassignments
2Medicare enrollment records show Philip Giarrusso reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Great Neck, NY 11021
- Reassigned Medicare billing, New York enrollment
- 9,353 clinicians in this Medicare group
Port Jefferson, NY 11777
- Reassigned Medicare billing, New York enrollment
- Also billed through NPI 1467249334 (New York)
- 232 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.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ns/Lij Hs Southside Hospital
Acute Care Hospitals · Bay Shore, NYNs/Lij Hs Huntington Hospital
Acute Care Hospitals · Huntington, NYNorth Shore University Hospital
Acute Care Hospitals · Manhasset, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11803 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
PLAINVIEW, NY 11803
PLAINVIEW, NY 11803
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 Philip Giarrusso's NPI number?
The NPI number for Philip Giarrusso is 1144849563. It was assigned to this individual provider in the NPPES registry on April 15, 2020.
Where is Philip Giarrusso located?
Philip Giarrusso practices at 888 Old Country Rd, Plainview, NY 11803. The listed phone number is (516) 719-3000.
What is Philip Giarrusso's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Philip Giarrusso enrolled in Medicare?
Yes. Philip Giarrusso 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 organizations bill Medicare for Philip Giarrusso's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Philip Giarrusso reassigns Medicare benefits to 2 organizations: North Shore-Lij Medical PC (Great Neck, NY) and John T. Mather Memorial Hospital (Port Jefferson, NY). Each 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 Philip Giarrusso's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Philip Giarrusso affiliated with any hospitals?
According to CMS data, Philip Giarrusso is affiliated with Ns/Lij Hs Southside Hospital, Ns/Lij Hs Huntington Hospital and North Shore University Hospital.
When was this NPI record last updated?
The NPPES record for Philip Giarrusso was last updated on June 6, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Dr. Philip Giarrusso, DO · NPI 1144849563
Emergency Medicine physician in Plainview, New York. Individual provider, active in the CMS NPPES registry since April 15, 2020.
## Identity
- **NPI:** 1144849563 (Entity type: Individual)
- **Enumerated:** April 15, 2020
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 322985 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 888 OLD COUNTRY RD, Plainview, NY 11803-4914
- **Phone:** (516) 719-3000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): North Shore-Lij Medical PC (NPI 1053688572, Great Neck, NY); John T. Mather Memorial Hospital (NPI 1285920231, Port Jefferson, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Liberty Univ College Of Osteopathic Medicine, class of 2020
## Record status
- **NPPES last updated:** June 6, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1144849563) · Data from the CMS NPPES public registry.