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

Dr. John Bullmaster

Individual provider Surgery Physician · NPI 1356327266

Dr. John Bullmaster practises General Surgery in Dayton, Ohio. Graduated from University of Toledo College of Medicine in 1979, 47 years ago. Practices with Kettering Independent Medical Group Inc, a 700-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
47
Trained at
University of Toledo College of Medicine
Licensed in
OH
In the registry since
2005
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Practice location Address checks out

160 Wyoming St Ste 1
Dayton, OH 45409-2740
Phone: (937) 228-0789
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 4000 Miamisburg Centerville Rd Ste 435, Miamisburg, OH 45342-7615 — (937) 384-4861

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence 35046302 (OH)

Record details

NPI number1356327266
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedDecember 22, 2005
Last updated in NPPESOctober 25, 2021
Certification dateOctober 25, 2021

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolUNIVERSITY OF TOLEDO COLLEGE OF MEDICINE
Graduated 1979 (47 years in practice)
Group practice Kettering Independent Medical Group Inc — 700 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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.

Hernia repair - groin (open) 11 times · 90th percentile
Colonoscopy 1–10 times
Melanoma (skin cancer) excision 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 patients99
Services billed 251 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $50 3 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Kettering Health Main Campus Hospital · Kettering, OH · listed as Kettering Medical Center
  • Kettering Health Dayton Hospital · Dayton, OH
  • Kettering Health Miamisburg Hospital · Miamisburg, OH
  • Kettering Homecare Home health agency · Kettering, OH

Colleagues at Kettering Independent Medical Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 700 clinicians in the practice; 12 are shown here.

Other providers in Dayton