Erick Matthew O'Brien, D.O
Emergency Medicine Physician · Buffalo, NY
Erick Matthew O'Brien, D.O is an emergency medicine physician with a practice address in Buffalo, New York, and NPI 1306232178, issued on Apr 8, 2015. Check the license on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Erick Matthew O'Brien
- Credential
- D.O
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 007626 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 100 High St, Buffalo, NY 14203
- Phone
- (716) 859-1499
- Enumerated
- Apr 8, 2015
- Record last updated
- Mar 15, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (716) 859-1555
- Medicare enrollment
- Enrolled (PECOS I20181112001320); accepts Medicare assignment
- Medical or professional school
- Lake Erie College Of Osteopathic Medicine, Erie, 2015
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 5,025 in New York → Look up another NPI →
Also registered at 100 High St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jamie Abbott, PHD, MSGenetic Counselor (M.S.)1093411522
- Amr Abd El-Radi, MDInternal Medicine Physician1124681614
- Mohamed Abdel-Aal Ahmed, M.D.Cardiovascular Disease Physician1164834776
- Jonah Abdo-Suarez, PHARMACISTPharmacist1164259826
- Samira Abdulkadir, PA-CPhysician Assistant1376344721
- Omar Abialmouna, MDRheumatology Physician1518527092
Verify Erick Matthew O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the ProfessionsCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4% fewer Medicare Part D claims than the average emergency medicine physician in 2024
217 Medicare Part D claims for 118 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Ondansetron Odt24 claims
- Cephalexin21 claims
- Naproxen21 claims
- Prednisone17 claims
- Omeprazole11 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 2 group practices
- Emergency Professional Services PCPhoenix, AZ
- Tec Emergency Physicians OF Arizona, LLCMesa, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Erick Matthew O'Brien among 5,025 emergency medicine physician records in New York
Erick Matthew O'Brien, D.O 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 2015, is newer than 63% of them.
- NPI issued2015 · 63% of these records are older, 33% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2015 · median 2013 among the 3,232 with a school on file
- Record last updated2021 · 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
- Cristine Adams, MDBuffalo, NY 142031134161193
- Jeanne Basior, MDBuffalo, NY 142031982610994
- Mary Bennett, MDBuffalo, NY 142031457368094
- Dawn Bingeman, MDBuffalo, NY 142031144237785
- Jason Borton, MDBuffalo, NY 142031932137429
- Andrew Covey, MDBuffalo, NY 142031235169871
- Christian Defazio, MDBuffalo, NY 142031689627465
- Michael Klein, DOBuffalo, NY 142031912940446
Common questions
What is Erick Matthew O'Brien, D.O's NPI number?
Erick Matthew O'Brien, D.O's National Provider Identifier (NPI) is 1306232178, issued on Apr 8, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Erick Matthew O'Brien, D.O located?
The NPPES record lists a practice address at 100 High St, Buffalo, NY, 14203. Phone: (716) 859-1499. Providers update this record themselves, so call before visiting.
How can I verify Erick Matthew O'Brien, D.O's license?
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 Erick Matthew O'Brien, D.O prescribe under Medicare Part D?
In 2024, Erick Matthew O'Brien, D.O had 217 Medicare Part D claims for 118 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.