Bon Chang A. Koo, MD
Gastroenterology Physician · New Windsor, NY
Bon Chang A. Koo, MD is a gastroenterology physician with a practice address in New Windsor, New York, and NPI 1396960043, issued on Apr 16, 2007. Check the license (New York 230774-1, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Bon Chang A. Koo
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 230774-1 NY
25MA09230600 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 277 Quassaick Avenue (RT. 94), New Windsor, NY 12553
- Phone
- (845) 565-5630
- Enumerated
- Apr 16, 2007
- Record last updated
- Apr 29, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (845) 565-5643
- Medicare enrollment
- Enrolled (PECOS I20130712000544); accepts Medicare assignment
- Medical or professional school
- New York University Medical College - Nlg, 2000
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 1,797 in New York → Look up another NPI →
Verify Bon Chang A. Koo 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 230774-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
28% fewer Medicare Part D claims than the average gastroenterology physician in 2024
585 Medicare Part D claims for 214 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Pantoprazole Sodium204 claims
- Famotidine118 claims
- Omeprazole50 claims
- Dicyclomine Hcl38 claims
- Sucralfate26 claims
- Esomeprazole Magnesium17 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.
The MIPS final score for 2023 (Medicare payment program): 95 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $662.52
28 payments; by number, the most common kind was food and beverage; the largest payer was Pentax of America, 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
- Mpv New Jersey MD Services PCEmerson, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Bon Chang A. Koo among 1,797 gastroenterology physician records in New York
Bon Chang A. Koo, MD 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 2007, is newer than 56% of them.
- NPI issued2007 · 56% of these records are older, 38% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2000 · median 1999 among the 1,378 with a school on file
- Record last updated2013 · 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).
7 gastroenterology physician records list a practice address in New Windsor
They are 7 of the 608 NPPES records with a practice address in New Windsor, and 1,797 gastroenterology physician records in New York.
All 1,797 in New York → Every provider in New Windsor → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Dean Cassimatis, M.D.New Windsor, NY 125531821097742
- Seth Levin, M.D.New Windsor, NY 125531528067444
- Arif Muslim, MDNew Windsor, NY 125531053534578
- Murali Perumal, M.D.New Windsor, NY 125531538169461
- Thomas Scileppi, M.D.New Windsor, NY 125531598765430
- Majed Zouhairi, MDNew Windsor, NY 125531437383833
- Jose Churrango, MDNewburgh, NY 125501386879914
- Katherine Kim, MDNewburgh, NY 125501518163039
Common questions
What is Bon Chang A. Koo, MD's NPI number?
Bon Chang A. Koo, MD's National Provider Identifier (NPI) is 1396960043, issued on Apr 16, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Bon Chang A. Koo, MD located?
The NPPES record lists a practice address at 277 Quassaick Avenue (RT. 94), New Windsor, NY, 12553. Phone: (845) 565-5630. Providers update this record themselves, so call before visiting.
How can I verify Bon Chang A. Koo, MD's license?
NPPES lists New York license number 230774-1, 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 Bon Chang A. Koo, MD prescribe under Medicare Part D?
In 2024, Bon Chang A. Koo, MD had 585 Medicare Part D claims for 214 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Bon Chang A. Koo, MD's MIPS final score?
The 2023 MIPS final score is 95 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.