Zachary Ryan Kozlowski
Emergency Medicine Physician · Buffalo, NY
Zachary Ryan Kozlowski is an emergency medicine physician with a practice address in Buffalo, New York, and NPI 1811494818, issued on Apr 7, 2018. Check the license (New York 308874, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Zachary Ryan Kozlowski
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 308874 NY
Self-reported in NPPES; status is on the state search - Practice location
- 3435 Main St, Buffalo, NY 14214
- Phone
- (716) 859-1499
- Enumerated
- Apr 7, 2018
- Record last updated
- Oct 27, 2022
- Fax
- (716) 859-1555
- Medicare enrollment
- Enrolled (PECOS I20210604001082); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 5,025 in New York → Look up another NPI →
Also registered at 3435 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Zachary Ryan Kozlowski 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 308874Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average emergency medicine physician in 2024
472 Medicare Part D claims for 313 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 46 claims were for opioids.
Most prescribed
- Cefdinir63 claims
- Ondansetron Odt57 claims
- Prednisone41 claims
- Hydrocodone-Acetaminophen40 claims
- Meclizine Hcl24 claims
- Amoxicillin-Clavulanate Potass22 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
- Buffalo Emergency Associates LLPKenmore, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Zachary Ryan Kozlowski among 5,025 emergency medicine physician records in New York
Zachary Ryan Kozlowski 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 2018, is newer than 75% of them.
- NPI issued2018 · 75% of these records are older, 21% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2018 · median 2013 among the 3,232 with a school on file
- Record last updated2022 · 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).
156 emergency medicine physician records list a practice address in Buffalo
They are 156 of the 13,287 NPPES records with a practice address in Buffalo, and 5,025 emergency medicine physician records in New York.
All 5,025 in New York → Every provider in Buffalo → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Joshua Holland, DOBuffalo, NY 142141568789147
- Jeremy Michalski, MDBuffalo, NY 142141306586748
- Mark Podlas, MDBuffalo, NY 142141437117264
- Azima Rasiwala, D.OBuffalo, NY 142141003253378
- Richard Ruh, DOBuffalo, NY 142141306425228
- John Santillo, D.O.Buffalo, NY 142141447437876
- Scott Belote, MDBuffalo, NY 142151952371809
- Anthony Billittier, MDBuffalo, NY 142151770553638
Common questions
What is Zachary Ryan Kozlowski's NPI number?
Zachary Ryan Kozlowski's National Provider Identifier (NPI) is 1811494818, issued on Apr 7, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Zachary Ryan Kozlowski located?
The NPPES record lists a practice address at 3435 Main St, Buffalo, NY, 14214. Phone: (716) 859-1499. Providers update this record themselves, so call before visiting.
How can I verify Zachary Ryan Kozlowski's license?
NPPES lists New York license number 308874, 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 Zachary Ryan Kozlowski prescribe under Medicare Part D?
In 2024, Zachary Ryan Kozlowski had 472 Medicare Part D claims for 313 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.