Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Michael Caleb O'Neil, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1376988600

Michael Caleb O'Neil, MD practises Emergency Medicine in Philadelphia, Pennsylvania. Graduated from University of Arizona College of Medicine in 2013, 13 years ago. Practices with Main Line Emergency Med Associates LLC, a 48-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
13
Trained at
University of Arizona College of Medicine
Licensed in
PA
In the registry since
2013
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Philadelphia, PA

No coordinates on file. Search this address in Google Maps

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence MT212463 (PA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1376988600
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 30, 2013
Last updated in NPPESMay 30, 2018

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF ARIZONA COLLEGE OF MEDICINE
Graduated 2013 (13 years in practice)
Group practice Main Line Emergency Med Associates Llc — 48 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Upper gastrointestinal (GI) endoscopy for acid reflux 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients674
Services billed 954 a service is one billed item, such as a visit, a test or a procedure
Average patient age79

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Paoli Hospital Hospital · Paoli, PA

Colleagues at Main Line Emergency Med Associates LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 48 clinicians in the practice; 12 are shown here.

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