Timothy Sebastian Koo, M.D.
Emergency Medicine Physician · Bronx, NY
Timothy Sebastian Koo, M.D. is an emergency medicine physician with a practice address in Bronx, New York, and NPI 1548551765, issued on Apr 21, 2011. Check the license (New York 274466, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Timothy Sebastian Koo
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 274466 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1650 Grand Concourse, Bronx, NY 10457
- Phone
- (718) 992-7669
- Enumerated
- Apr 21, 2011
- Record last updated
- May 15, 2023
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 5,025 in New York → Look up another NPI →
Also registered at 1650 Grand Concourse
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Timothy Sebastian 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 274466Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average emergency medicine physician in 2024
33 Medicare Part D claims for 22 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
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.
Timothy Sebastian Koo among 5,025 emergency medicine physician records in New York
Timothy Sebastian Koo, M.D. 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 2011, is newer than 47% of them.
- NPI issued2011 · 47% of these records are older, 48% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2023 · 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).
464 emergency medicine physician records list a practice address in Bronx
They are 464 of the 32,017 NPPES records with a practice address in Bronx, and 5,025 emergency medicine physician records in New York.
All 5,025 in New York → Every provider in Bronx → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Juan Acosta, DOBronx, NY 104571316940968
- Jae Ahn, D.O.Bronx, NY 104571679541619
- Vijay Akkapeddi, M.D.Bronx, NY 104571982657706
- Ruben Altamirano, D.O.Bronx, NY 104571588614820
- Eric Appelbaum, D.O.Bronx, NY 104571528034618
- Jerry Balentine, D.O.Bronx, NY 104571376537050
- Paul Beyer, D.O.Bronx, NY 104571073563805
- Daniel Cerbone, D.O.Bronx, NY 104571073560520
Common questions
What is Timothy Sebastian Koo, M.D.'s NPI number?
Timothy Sebastian Koo, M.D.'s National Provider Identifier (NPI) is 1548551765, issued on Apr 21, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Timothy Sebastian Koo, M.D. located?
The NPPES record lists a practice address at 1650 Grand Concourse, Bronx, NY, 10457. Phone: (718) 992-7669. Providers update this record themselves, so call before visiting.
How can I verify Timothy Sebastian Koo, M.D.'s license?
NPPES lists New York license number 274466, 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 Timothy Sebastian Koo, M.D. prescribe under Medicare Part D?
In 2024, Timothy Sebastian Koo, M.D. had 33 Medicare Part D claims for 22 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.