Dr. Allyson Y Won , DDS
Dentist - Endodontics • Bayside, NY
4727 Bell Blvd
Bayside, NY 113613333
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Allyson Won is listed in NPPES under Dentist - Endodontics.
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NPI assigned on July 16, 2013; this date does not establish years in practice.
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Published CMS data list 12 Medicare Part D prescriptions, including refills, in 2021.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2021. Published rows only; this is not a quality measure.
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Published Part D records, 2021:
- Amoxicillin — 12 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2021. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table · Guide: How to read Medicare Part D prescriber data
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Medicare Part D prescriptions went from 16 in 2020 to 12 in 2021.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2020–2021.
Practice Location & Contact Primary Location
4727 Bell Blvd
Bayside, NY 113613333
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in New York, NY. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
What Public CMS Data Show
Dentist - Endodontics: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
12 standardized 30-day fills in 2021
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$35 in 2021
The total cost of these prescriptions in 2021, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2021.
Open Payments general payments, program year 2024
All general payments: $52.50 across 2 records.
By nature of payment
- Food and Beverage: $52.50 across 2 records.
Reporting-company totals
- Dentsply Sirona Inc: $52.50 across 2 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2024 (published June 30, 2026).
NPI first issued
2013
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Compared with the same specialty in Bayside and New York
Billing and prescribing volume is not a quality rating.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Won are from 2021.
6 active clinicians are listed under Dentist - Endodontics with a practice address in Bayside, NY (484 in New York).
Addresses are self-reported to NPPES and may be out of date.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part D prescriptions
Medicare Part D prescriptions went from 16 in 2020 to 12 in 2021.
- 2020: 16
- 2021: 12
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30-day fills
30-day fills went from 16 in 2020 to 12 in 2021.
- 2020: 16
- 2021: 12
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Part D drug cost
Part D drug cost went from $54 in 2020 to $35 in 2021.
- 2020: $54
- 2021: $35
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $202.92 in 2019 to $52.50 in 2024.
- 2019: $202.92
- 2021: $716.50
- 2022: $108.27
- 2023: $614.79
- 2024: $52.50
Sources: CMS Medicare Part D Prescribers (2021), CMS Open Payments (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2024 (payments made January 1 – December 31, 2024): fewer than 11 records totaling $52.50.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Dentsply Sirona Inc |
Food and Beverage
In-kind items and services
|
WaveOne Gold Conform Fit | General | $33.94 |
| Dentsply Sirona Inc |
Food and Beverage
In-kind items and services
|
WaveOne Gold Conform Fit | General | $18.56 |
Source: CMS Open Payments, program year 2024, released June 30, 2026.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2021.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Amoxicillin | Amoxicillin | 12 | 84 | $35.04 | 12 |
Source: CMS Part D by Provider and Drug, 2021; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 1223E0200X
The branch of dentistry that is concerned with the morphology, physiology and pathology of the human dental pulp and periradicular tissues. Its study and practice encompass the basic and clinical sciences including biology of the normal pulp, the etiology, diagnosis, prevention and treatment of diseases and injuries of the pulp and associated periradicular conditions.
Secondary Practice Locations
423 E 23rd St
New York, NY 100105011
Phone: 2126867500
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Dentist
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 4727 BELL BLVD, BAYSIDE, NY 113613333 (Tel: 7182244200)
Registered at 4727 BELL BLVD, BAYSIDE, NY 113613333 (Tel: 7182244200)
Dentist (license number reported to NPPES: NY 057401)
NPI status registered as active in NPPES database
Registered at 423 E 23RD ST, NEW YORK, NY 100105011 (Tel: 2126867500)
Registered at 423 E 23RD ST, NEW YORK, NY 100105011 (Tel: 2126867500)
Recorded as ALLYSON WON, DDS
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Dentist - Endodontics Specialists in Bayside
Mailing Address
4727 Bell Blvd
Bayside, NY 113613333
Phone: 7182244200