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

Dr. John D Weilbacker, DO

Individual provider Emergency Medicine Physician · NPI 1124013966

Dr. John D Weilbacker, DO practises Emergency Medicine in Tucson, Arizona. Graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 1994, 32 years ago. Practices with American Specialty Physicians Group Inc, a 92-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Arizona, California and New Jersey.

Years since qualifying
32
Trained at
At Still University of Health Sciences, College of Osteo Med, Kirksville
Licensed in
AZ, CA, NJ
In the registry since
2005
Specialties on file
3
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.

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Practice location Address checks out

6200 N La Cholla Blvd
Tucson, AZ 85741-3529
Phone: (520) 742-9000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 530 New Brunswick Ave, Perth Amboy, NJ 08861-3674 — (732) 442-3700

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 4174 (AZ)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 20A14318 (CA)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 25MB06503500 (NJ)

Record details

NPI number1124013966
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedSeptember 19, 2005
Last updated in NPPESSeptember 12, 2025
Certification dateSeptember 12, 2025

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolAT STILL UNIVERSITY OF HEALTH SCIENCES, COLLEGE OF OSTEO MED, KIRKSVILLE
Graduated 1994 (32 years in practice)
Group practice American Specialty Physicians Group Inc — 92 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 patients326
Services billed 635 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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at American Specialty Physicians Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 92 clinicians in the practice; 12 are shown here.

Other providers in Tucson