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

Mark J. Killen, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1174142269

Mark J. Killen, MD practises Anesthesiology in Philadelphia, Pennsylvania. Graduated from Drexel University College of Medicine in 2020, 6 years ago. Practices with Hospitalist Medicine Physicians of Ohio - Cincinnati Professional Corp, a 56-clinician group and accepts Medicare assignment. Licensed in New Jersey.

Years since qualifying
6
Trained at
Drexel University College of Medicine
Licensed in
NJ
In the registry since
2020
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 25MA11831300 (NJ)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1174142269
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 9, 2020
Last updated in NPPESMay 24, 2023
Certification dateMay 24, 2023

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolDREXEL UNIVERSITY COLLEGE OF MEDICINE
Graduated 2020 (6 years in practice)
Group practice Hospitalist Medicine Physicians Of Ohio - Cincinnati Professional Corp — 56 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients782
Services billed 863 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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. Those with a page here are linked.

  • Adena Fayette Medical Center Hospital · Washington Ch, OH
  • Adena Pike Medical Center Hospital · Waverly, OH
  • Adena Regional Medical Center Hospital · Chillicothe, OH
  • West Jersey Hospital Hospital · Voorhees, NJ

Colleagues at Hospitalist Medicine Physicians of Ohio - Cincinnati Professional Corp

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 56 clinicians in the practice; 12 are shown here.

Other providers in Philadelphia