MALLORY GROSSO
NPI 1558833160
Physician Assistant - Medical in New York, NY

Active since December 20, 2018PECOS EnrolledAccepts Medicare Assignment
84.47/100
CMS Quality Rating
1275 YORK AVE, NEW YORK, NY 10065(212) 639-2000 Get Directions Write a Review

NPPES record last updated: March 3, 2021. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Mar 3, 2021, Feb 11, 2019, Dec 20, 2018 (3 updates tracked since 2018).

About Mallory Grosso NPPES

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

MALLORY GROSSO (NPI 1558833160) is an individual medical provider in New York, New York, licensed in Connecticut (4368) and active in the NPI registry since December 2018. She is enrolled in Medicare PECOS and is a graduate of Other (2018).

NPPES Registry Identity

NPI1558833160
Entity TypeIndividualFemale
Primary Taxonomy363AM0700X
Provider Legal NameMALLORY GROSSO
Location Address1275 YORK AVENew York, NY 10065-6007
Mailing Address515 West Ave Ph 38Norwalk, CT 06850-4051
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateDecember 20, 2018
Last NPPES UpdateMarch 3, 20213 updates tracked since enumeration
NPPES CertifiedMarch 3, 2021
NPI 1558833160 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyPhysician Assistant · MedicalPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363AM0700X
License Licensed in CT · 4368
Also ListedPhysician AssistantTaxonomy 363A00000X
1275 YORK AVE, New York, NY 10065

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Mallory Grosso 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 ID5496095309
PECOS Enrollment IDI20190312002837
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 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.

Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
76 services40 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
17 services15 patients
Critical care, each additional 30 minutes 99292
Critical care refers to special attention given to patients facing life-threatening conditions. Each additional 30 minutes indicates the extension of this specialized care. This might include close monitoring, medication adjustments, and immediate interventions as needed.
12 services11 patients

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.

84.47/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality79.28
Promoting Interoperability100
Improvement Activities40
Cost59.59

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.

Nurse Practitioner (Adult Health)
1275 YORK AVE
NEW YORK, NY 10065
Nurse Practitioner (Acute Care)
1275 YORK AVE
NEW YORK, NY 10065
Nurse Practitioner (Adult Health)
1275 YORK AVE
NEW YORK, NY 10065
Nurse Practitioner (Pediatrics)
1275 YORK AVE
NEW YORK, NY 10065
Nurse Practitioner (Adult Health)
1275 YORK AVE
NEW YORK, NY 10065
Internal Medicine (Hematology & Oncology)
1275 YORK AVE
NEW YORK, NY 10065
Nurse Practitioner (Adult Health)
1275 YORK AVE
NEW YORK, NY 10065
Special Hospital
1275 YORK AVE, MEMORIAL SLOAN KETTERING CANCER CENTRE
NEW YORK, NY 10065

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 Mallory Grosso's NPI number?

The NPI number for Mallory Grosso is 1558833160. It was assigned to this individual provider in the NPPES registry on December 20, 2018.

Where is Mallory Grosso located?

Mallory Grosso practices at 1275 York Ave, New York, NY 10065. The listed phone number is (212) 639-2000.

What is Mallory Grosso's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Medical, with taxonomy code 363AM0700X.

Is Mallory Grosso enrolled in Medicare?

Yes. Mallory Grosso 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.

When was this NPI record last updated?

The NPPES record for Mallory Grosso was last updated on March 3, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.