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

Dr. John M Curtin, DO

Individual provider Family Medicine Physician · NPI 1346393428

Dr. John M Curtin, DO is registered under Family Practice in Peru, Illinois. Graduated from Midwestern University, Chicago College of Osteopathic Med in 1973, 53 years ago. Practices with Asad Zaman MD SC, an 8-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
53
Trained at
Midwestern University, Chicago College of Osteopathic Med
Licensed in
IL
In the registry since
2007
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 →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1650 Midtown Rd
Peru, IL 61354-1274 Not confirmed with CMS for 10 years — call before visiting
Phone: (815) 223-6843
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 036049470 (IL)

Record details

NPI number1346393428
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedJanuary 19, 2007
Last updated in NPPESJanuary 28, 2016

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolMIDWESTERN UNIVERSITY, CHICAGO COLLEGE OF OSTEOPATHIC MED
Graduated 1973 (53 years in practice)
Group practice Asad Zaman Md Sc — 8 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 patients227
Services billed 644 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. Those with a page here are linked.

Colleagues at Asad Zaman MD SC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 8 clinicians in the practice; 6 are shown here.

Other providers in Peru