Sing Chan, M.D.
Gastroenterology Physician · Flushing, NY
Sing Chan, M.D. is a gastroenterology physician with a practice address in Flushing, New York, and NPI 1225053523, issued on Jul 13, 2006. Check the license (New York 192380, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Sing Chan
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 192380 NY
Self-reported in NPPES; status is on the state search - Practice location
- 3808 Union St, Flushing, NY 11354
- Phone
- (516) 238-6855
- Enumerated
- Jul 13, 2006
- Record last updated
- Sep 18, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (646) 224-8549
- Medicaid ID
- 01877912 NY
- Medicare enrollment
- Enrolled (PECOS I20040430001347); accepts Medicare assignment
- Medical or professional school
- State University Of New York Downstate Medical Center, 1991
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 1,797 in New York → Look up another NPI →
Also registered at 3808 Union St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ning DingSocial Worker1922953702
- Yong Luo, M.D., PH.D.Allergy Physician1902130628
- Julie Zang, M.D., PH.D.Dermatology Physician1255574786
Verify Sing Chan 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 192380Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7.0 times the Medicare Part D claims of the average gastroenterology physician in 2024
5,650 Medicare Part D claims for 1,274 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims. 15 claims were for opioids.
Most prescribed
- Famotidine818 claims
- Omeprazole749 claims
- Amoxicillin465 claims
- Linzess424 claims
- Vemlidy348 claims
- Hydrocortisone275 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.
Industry payments in 2024: $1,992.65
102 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Dreamwork Medical, PLLCFlushing, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sing Chan among 1,797 gastroenterology physician records in New York
Sing Chan, M.D. is one of 1,797 gastroenterology physician records with a practice address in New York. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 44% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1991 · median 1999 among the 1,378 with a school on file
- Record last updated2018 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in New York
There are 1,797 gastroenterology physician records in New York.
All 1,797 in New York → Every provider in Flushing → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Samuel Cho, M.D.Flushing, NY 113541801839501
- Chung Ha, MDFlushing, NY 113541871653782
- Harry He, MDFlushing, NY 113541215427588
- Tong Jing, M.D.Flushing, NY 113541316916778
- Michael Li, MD PHDFlushing, NY 113541770547630
- Joon Myung, MDFlushing, NY 113541265598759
- He Qiu, M.D.Flushing, NY 113541538691365
- Jianlin Xie, M.D.Flushing, NY 113541477710564
Common questions
What is Sing Chan, M.D.'s NPI number?
Sing Chan, M.D.'s National Provider Identifier (NPI) is 1225053523, issued on Jul 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sing Chan, M.D. located?
The NPPES record lists a practice address at 3808 Union St, Flushing, NY, 11354. Phone: (516) 238-6855. Providers update this record themselves, so call before visiting.
How can I verify Sing Chan, M.D.'s license?
NPPES lists New York license number 192380, 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 Sing Chan, M.D. prescribe under Medicare Part D?
In 2024, Sing Chan, M.D. had 5,650 Medicare Part D claims for 1,274 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.