Michael Clancy O'Brien, MD, FAAEM
Emergency Medicine Physician · Buffalo, NY
Michael Clancy O'Brien, MD, FAAEM is an emergency medicine physician with a practice address in Buffalo, New York, and NPI 1720357353, issued on Dec 28, 2011. Check the license (New York 284739, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Michael Clancy O'Brien
- Credential
- MD, FAAEM
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 284739 NY
145945 IL
Self-reported in NPPES; status is on the state search - Practice location
- 462 Grider St, Buffalo, NY 14215
- Phone
- (773) 837-2892
- Enumerated
- Dec 28, 2011
- Record last updated
- Jun 12, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (888) 641-2862
- Medicare enrollment
- Enrolled (PECOS I20160824000058); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2012
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 5,025 in New York → Look up another NPI →
Also registered at 462 Grider St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Saddam Abbadi, DOStudent in an Organized Health Care Education/Training Program1386494631
- Sharif Abbas, M.D.Student in an Organized Health Care Education/Training Program1376336792
- Sarah Abdelsayed, MDFamily Medicine Physician1093065138
- Elias Abou-Jaoude, MDInternal Medicine Physician1457932519
- Alexandra Abraham, RD CDNRegistered Dietitian1295165587
- Michael Abrams, PTPhysical Therapist1841355773
Verify Michael Clancy O'Brien 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 284739Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average emergency medicine physician in 2024
13 Medicare Part D claims for 12 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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
- University Emergency Medical Services Inc.Buffalo, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Clancy O'Brien among 5,025 emergency medicine physician records in New York
Michael Clancy O'Brien, MD, FAAEM 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 fileYes · 64% of these records are
- Graduated2012 · median 2013 among the 3,232 with a school on file
- Record last updated2018 · 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
- Scott Belote, MDBuffalo, NY 142151952371809
- Anthony Billittier, MDBuffalo, NY 142151770553638
- George Braen, MDBuffalo, NY 142151033189378
- Samuel Cloud, MDBuffalo, NY 142151548239817
- William Dice, M.D.Buffalo, NY 142151417996968
- David Ellis, MDBuffalo, NY 142151285605089
- Kerry Hlubik, M.D.Buffalo, NY 142151164686234
- Gerald Igoe, MDBuffalo, NY 142151790740272
Common questions
What is Michael Clancy O'Brien, MD, FAAEM's NPI number?
Michael Clancy O'Brien, MD, FAAEM's National Provider Identifier (NPI) is 1720357353, issued on Dec 28, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Michael Clancy O'Brien, MD, FAAEM located?
The NPPES record lists a practice address at 462 Grider St, Buffalo, NY, 14215. Phone: (773) 837-2892. Providers update this record themselves, so call before visiting.
How can I verify Michael Clancy O'Brien, MD, FAAEM's license?
NPPES lists New York license number 284739, 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 Michael Clancy O'Brien, MD, FAAEM prescribe under Medicare Part D?
In 2024, Michael Clancy O'Brien, MD, FAAEM had 13 Medicare Part D claims for 12 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.