Gesille Fiallo
- Part D claims, 2024
- 98
- Industry payments
- $37
- Affiliated sites
- 1
- Medical group
- 1
- Year NPI issued
- 2021
- Practice address
- 1450 Madison Ave, New York, NY 10029
- Practice phone
- Call (212) 241-0002
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Neurosurgery Department of Mount Sinai
New York, New York
Find Gesille Fiallo's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Gesille Fiallo is a physician assistant in New York, New York
Gesille Fiallo practices at Neurosurgery Department of Mount Sinai in New York, New York.
Gesille Fiallo's NPI, 1669055794, was assigned on May 5, 2021.
- NPI
- 1669055794NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5890192306
- NPI enumeration date
- May 5, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (212) 241-0002
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Gesille Fiallo practices at Neurosurgery Department of Mount Sinai in New York, New York
Gesille Fiallo's primary practice is Neurosurgery Department of Mount Sinai, at 1450 Madison Ave, New York, NY 10029 in New York County. The practice phone is (212) 241-0002.
- Neurosurgery Department of Mount Sinai1450 Madison Ave, New York, NY 10029 · New York CountyPhone(212) 241-0002
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Gesille Fiallo is affiliated with 2 sites of care and 1 medical group
Gesille Fiallo's primary practice is Neurosurgery Department of Mount Sinai in New York, New York. The medical group on file is Mount Sinai Institute for Liver Medicine. Dmand AI also links Gesille Fiallo to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Gesille Fiallo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Gesille Fiallo practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Neurosurgery Department of Mount Sinai | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Gesille Fiallo is one of 11,456 physician assistants in New York
Physician assistant is Gesille Fiallo's primary specialty in the NPI Registry, under taxonomy code 363A00000X.
Specialties and state licenses
- Physician assistantPrimary
Physician assistants near Gesille Fiallo
Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Gesille Fiallo's patients have a median age of 64
Across all payers, Dmand AI patient panel data puts Gesille Fiallo's median patient age at 64, with 60% women.
Gesille Fiallo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women60%
- Men38%
Source: Dmand AI Patient Panel Data
Gesille Fiallo wrote 98 Medicare Part D claims in 2024
In 2024, Gesille Fiallo wrote 98 Medicare Part D claims for 40 patients. 77% of them were for generic drugs. CMS names the drug for 50 of them, across 2 drugs with 11 or more claims each, at $14,155 in total drug cost.
Gesille Fiallo's Part D claims by kind of drug, 2024
- Generic75 claims77%
- Brand-name23 claims23%
Gesille Fiallo's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Gesille Fiallo offers telehealth to Medicare patients
Gesille Fiallo accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Gesille Fiallo as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Gesille Fiallo received $37 in industry payments in 2025
CMS Open Payments shows 1 general payment to Gesille Fiallo from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Integra LifeSciences Corporation paid the most, $37.
Companies that paid Gesille Fiallo the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Gesille Fiallo's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Gesille Fiallo
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Gesille Fiallo's NPI number?
Gesille Fiallo's NPI number is 1669055794. It was assigned on May 5, 2021, and it is active in the NPI Registry.
What does Gesille Fiallo specialize in?
Gesille Fiallo is a physician assistant in New York, New York. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Gesille Fiallo practice?
Gesille Fiallo practices at 1450 Madison Ave, New York, NY 10029. Gesille Fiallo's primary practice is Neurosurgery Department of Mount Sinai in New York, New York. Dmand AI also links Gesille Fiallo to 1 group practice or clinic.
What is Gesille Fiallo's office phone number?
The practice phone on file for Gesille Fiallo is (212) 241-0002.
What medical group is Gesille Fiallo part of?
Gesille Fiallo is linked to Mount Sinai Institute for Liver Medicine.
Does Gesille Fiallo accept Medicare?
Yes. CMS lists Gesille Fiallo as accepting Medicare assignment.
Does Gesille Fiallo offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Gesille Fiallo as offering telehealth services.
What drugs does Gesille Fiallo prescribe most?
In 2024 Medicare Part D data, Gesille Fiallo's most prescribed drugs by claims were Atorvastatin Calcium and Brilinta.
Has Gesille Fiallo received payments from drug or device companies?
CMS Open Payments shows $37 in general payments to Gesille Fiallo from 1 company from 2025 to 2025. The largest total came from Integra LifeSciences Corporation.
How long has Gesille Fiallo been practicing?
Gesille Fiallo graduated from medical school in 2021, 5 years ago.
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