Isaac Chan, M.D.
Emergency Medicine Physician · New Haven, CT
Isaac Chan, M.D. is an emergency medicine physician with a practice address in New Haven, Connecticut, and NPI 1477871770, issued on May 11, 2010. Check the license on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Isaac Chan
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- Q3650 TX
Self-reported in NPPES; status is on the state search - Practice location
- 20 York St # T-209, New Haven, CT 06510
- Phone
- (203) 688-2259
- Enumerated
- May 11, 2010
- Record last updated
- Feb 13, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (203) 688-5599
- Medicare enrollment
- Enrolled (PECOS I20150804003158); accepts Medicare assignment
- Medical or professional school
- Columbia University College Of Physicians And Surgeons, 2010
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 846 in Connecticut → Look up another NPI →
Also registered at 20 York St # T-209
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Isaac Chan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.8 times the Medicare Part D claims of the average emergency medicine physician in 2024
638 Medicare Part D claims for 244 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 149 claims were for opioids.
Most prescribed
- Ondansetron Odt143 claims
- Tramadol Hcl120 claims
- Pantoprazole Sodium58 claims
- Amoxicillin-Clavulanate Potass35 claims
- Clonidine Hcl30 claims
- Acetaminophen-Codeine29 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
- Elite Hospital Partners, PLLCHouston, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Isaac Chan among 846 emergency medicine physician records in Connecticut
Isaac Chan, M.D. is one of 846 emergency medicine physician records with a practice address in Connecticut. 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 2010, is newer than 55% of them.
- NPI issued2010 · 55% of these records are older, 43% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2010 · median 2011 among the 574 with a school on file
- Record last updated2018 · 57% 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 Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
204 emergency medicine physician records list a practice address in New Haven
They are 204 of the 9,793 NPPES records with a practice address in New Haven, and 846 emergency medicine physician records in Connecticut.
All 846 in Connecticut → Every provider in New Haven → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- David Cone, MDNew Haven, CT 065101770571440
- Leigh Evans, MDNew Haven, CT 065101134100704
- Karen Jubanyik-Barber, MDNew Haven, CT 065101336138098
- Edward Monico, MDNew Haven, CT 065101992789499
- Christopher Moore, MDNew Haven, CT 065101679554240
- Harry Moscovitz, MDNew Haven, CT 065101326038860
- Carolyn Rambus, MDNew Haven, CT 065101083685721
- Basmah Safdar, MDNew Haven, CT 065101942281514
Common questions
What is Isaac Chan, M.D.'s NPI number?
Isaac Chan, M.D.'s National Provider Identifier (NPI) is 1477871770, issued on May 11, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Isaac Chan, M.D. located?
The NPPES record lists a practice address at 20 York St # T-209, New Haven, CT, 06510. Phone: (203) 688-2259. Providers update this record themselves, so call before visiting.
How can I verify Isaac Chan, M.D.'s license?
Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Isaac Chan, M.D. prescribe under Medicare Part D?
In 2024, Isaac Chan, M.D. had 638 Medicare Part D claims for 244 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.