Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Allyson Gillespie, PA

Individual provider Physician Assistant · NPI 1356835615

Allyson Gillespie, PA is a Physician Assistant in New York, New York. Qualified in 2018, 8 years ago. Practices with MSKCC Surgery Group, a 365-clinician group, accepts Medicare assignment and offers telehealth.

Years since qualifying
8
In the registry since
2018
What do these letters mean?
PA — Physician Assistant
A licensed clinician who examines, diagnoses and treats under a physician's supervision.

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Practice location Address checks out

Memorial Sloan Kettering Cancer Center 1275 York Ave
New York, NY 10065
Phone: (860) 918-8476
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X

Record details

NPI number1356835615
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA
Sole proprietorNo
NPI enumeratedJune 20, 2018
Last updated in NPPESDecember 9, 2019
Certification dateDecember 9, 2019

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice Mskcc Surgery Group — 365 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients19
Services billed 21 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Affiliated with 1 hospital, which CMS identifies by certification number only.

Colleagues at MSKCC Surgery Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 365 clinicians in the practice; 12 are shown here.

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