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MR. JOHN GRASSI PA
NPI 1457471450
Emergency Medicine in Manhasset, NY

Active since March 31, 2007PECOS Enrolled
84.14/100
CMS Quality Rating
300 COMMUNITY DR, MANHASSET, NY 11030(516) 562-3090(516) 562-3680 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Mr. John Grassi Pa NPPES

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

MR. JOHN GRASSI PA (NPI 1457471450) is an individual emergency medicine provider in Manhasset, New York, licensed in New York (006579) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS and is a graduate of Other (1998).

NPPES Registry Identity

NPI1457471450
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameMR. JOHN GRASSICredential: PA
Location Address300 COMMUNITY DRManhasset, NY 11030-3816
Mailing Address972 Brush Hollow RdWestbury, NY 11590-1740 · (516) 876-5555 · Fax (516) 876-1246
Phone(516) 562-3090
Fax(516) 562-3680
Sole ProprietorYes
Medical School CMSOtherGraduated 1998
Enumeration DateMarch 31, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1457471450 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in NY · 006579
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
300 COMMUNITY DR, Manhasset, NY 11030
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mr. John Grassi Pa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID9234363656
PECOS Enrollment IDI20131017001274
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.

Areas of Expertise CMS Part B claims 9

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
274 services255 patients
Detection test by immunoassay with direct visual observation for influenza virus 87804
This is a test that identifies the influenza virus in your body. It works by using an immunoassay, a method that detects the presence of the virus through an immune response. The results are directly observable, making it a quick and efficient way to diagnose flu.
82 services41 patients
Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19) 87811
This is a test to detect COVID-19, the virus causing severe respiratory illness. It uses a method called immunoassay, which identifies the virus by its unique proteins. The test is directly observed for accuracy. It helps determine if you're currently infected.
75 services70 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
61 services61 patients
Automated urinalysis test 81003
An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.
41 services39 patients
Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) 87880
A detection test by immunoassay for Group A Strep is a quick procedure to identify a bacterial infection in your throat. It involves taking a throat swab and applying it to a test strip, which changes color if Strep bacteria are present.
34 services31 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11030 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
$105.06 typical visit price
range $67.40 – $203.53
Typical copayment $26.26 (range $16.85 – $50.88)
Most-billed visit code 99203
Established Patient
$117.62 typical visit price
range $21.66 – $164.45
Typical copayment $29.40 (range $5.41 – $41.11)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

84.14/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality78.11
Promoting Interoperability100
Improvement Activities40
Cost69.05

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.

SAMIT SHAH M.D.
Internal Medicine (Advanced Heart Failure and Transplant Cardiology)
300 COMMUNITY DR
MANHASSET, NY 11030
Nassau County (516) 562-1427
DR. SAMANTHA LING PHARMD
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
300 COMMUNITY DR
MANHASSET, NY 11030
Nassau County (516) 562-8761
DR. DIANA RACHAEL NORDQUIST MD
Anesthesiology
300 COMMUNITY DR
MANHASSET, NY 11030
Nassau County (516) 562-8630
DR. STEPHEN JOHN CIPOT IV D.O.
Emergency Medicine
300 COMMUNITY DR
MANHASSET, NY 11030
Nassau County (516) 684-7598
MR. JOSE LUIS CRUZ PA-C
Physician Assistant
300 COMMUNITY DR, NORTH SHORE UNIVERSITY HOSPITAL
MANHASSET, NY 11030
Nassau County (516) 562-3683
SARAH BETH KORNHABER C.R.N.A.
Nurse Anesthetist, Certified Registered
300 COMMUNITY DR, DEPT OF ANESTHESIA
MANHASSET, NY 11030
Nassau County (516) 562-4887
YUSON CHONG NP
Nurse Practitioner (Acute Care)
300 COMMUNITY DR
MANHASSET, NY 11030
Nassau County (516) 562-2252
THERESA MARY MOUZAKITIS PA
Physician Assistant
300 COMMUNITY DR
MANHASSET, NY 11030
Nassau County (516) 662-5100

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 John Grassi's NPI number?

The NPI number for John Grassi is 1457471450. It was assigned to this individual provider in the NPPES registry on March 31, 2007.

Where is John Grassi located?

John Grassi practices at 300 Community Dr, Manhasset, NY 11030. The listed phone number is (516) 562-3090.

What is John Grassi's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is John Grassi enrolled in Medicare?

Yes. John Grassi is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for John Grassi was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.