Gregory K. Sun, DO
Emergency Medicine Physician · Syracuse, NY
Gregory K. Sun, DO is an emergency medicine physician with a practice address in Syracuse, New York, and NPI 1821529751, issued on Mar 22, 2017. Check the license (New York 302373, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Gregory K. Sun
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 302373 NY
Self-reported in NPPES; status is on the state search - Practice location
- 750 East Adams St, Syracuse, NY 13210
- Phone
- (315) 464-4363
- Enumerated
- Mar 22, 2017
- Record last updated
- Jun 19, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (315) 464-8690
- Medicare enrollment
- Enrolled (PECOS I20210624001993); accepts Medicare assignment
- Medical or professional school
- Rowan University School Of Osteopathic Medicine, 2017
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 5,025 in New York → Look up another NPI →
Also registered at 750 East Adams St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gregory K. Sun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 302373Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% fewer Medicare Part D claims than the average emergency medicine physician in 2024
145 Medicare Part D claims for 123 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 11 claims were for opioids.
Most prescribed
- Cephalexin28 claims
- Ondansetron Odt15 claims
- Prednisone15 claims
- Amoxicillin-Clavulanate Potass11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Newton Emergency Medical Associates LLCNewton, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory K. Sun among 5,025 emergency medicine physician records in New York
Gregory K. Sun, DO is one of 5,025 emergency medicine physician records with a practice address in New York. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 71% of them.
- NPI issued2017 · 71% of these records are older, 25% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2017 · median 2013 among the 3,232 with a school on file
- Record last updated2020 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
167 emergency medicine physician records list a practice address in Syracuse
They are 167 of the 9,922 NPPES records with a practice address in Syracuse, and 5,025 emergency medicine physician records in New York.
All 5,025 in New York → Every provider in Syracuse → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Fouad Boulos, MDSyracuse, NY 132101366445652
- Norma Cooney, M.D.Syracuse, NY 132101699737429
- Gary Johnson, MDSyracuse, NY 132101316904907
- Walter Kantor, MDSyracuse, NY 132101942207790
- Thomas Lavoie, MDSyracuse, NY 132101467419499
- Deborah Mann, MDSyracuse, NY 132101912964529
- Lawrence Moloff, MDSyracuse, NY 132101508863861
- Karen Murphy, MDSyracuse, NY 132101194722033
Common questions
What is Gregory K. Sun, DO's NPI number?
Gregory K. Sun, DO's National Provider Identifier (NPI) is 1821529751, issued on Mar 22, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Gregory K. Sun, DO located?
The NPPES record lists a practice address at 750 East Adams St, Syracuse, NY, 13210. Phone: (315) 464-4363. Providers update this record themselves, so call before visiting.
How can I verify Gregory K. Sun, DO's license?
NPPES lists New York license number 302373, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory K. Sun, DO prescribe under Medicare Part D?
In 2024, Gregory K. Sun, DO had 145 Medicare Part D claims for 123 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.