Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Dr. Mark Thornton, DO

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1629203112

Dr. Mark Thornton, DO practises Emergency Medicine in Dayton, Ohio. Graduated from Ohio Medical University in 2008, 18 years ago. Practices with Emergency Medicine Specialists Inc, a 111-clinician group, works from 10 locations and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
18
Trained at
Ohio Medical University
Licensed in
OH
In the registry since
2009
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

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.

Dayton, OH

Additional practice locations (9)

  • 1997 Miamisburg Centerville Rd, Centerville, OH 45459-3811 — (937) 401-6228
  • 450f Washington Jackson Rd, Eaton, OH 45320-8699 — (937) 456-8376
  • 100 Kettering Way, Franklin, OH 45005-1155 — (937) 458-4700
  • 8701 Old Troy Pike, Huber Heights, OH 45424-1066 — (937) 558-3338
  • 3535 Southern Blvd, Kettering, OH 45429-1221 — (937) 395-8166
  • 4000 Miamisburg Centerville Rd, Miamisburg, OH 45342-7615 — (937) 384-8791
  • 6147 State Route 122, Middletown, OH 45005-5201 — (513) 261-3410
  • 1 Kettering Way, Piqua, OH 45356-4109 — (937) 916-2625
  • 600 W Main St, Troy, OH 45373-3384 — (937) 980-7010

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 34.010681 (OH)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence 58.002831 (OH)

Record details

NPI number1629203112
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 27, 2009
Last updated in NPPESMarch 31, 2021
Certification dateMarch 31, 2021

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOHIO MEDICAL UNIVERSITY
Graduated 2008 (18 years in practice)
Group practice Emergency Medicine Specialists Inc — 111 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients109
Services billed 160 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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.

Colleagues at Emergency Medicine Specialists Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 111 clinicians in the practice; 12 are shown here.

Other providers in Dayton