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

Dr. Craig A Duncan, DO

Individual provider Surgery Physician · NPI 1275540544

Dr. Craig A Duncan, DO practises General Surgery in Cheboygan, Michigan. Graduated from Ohio University, College of Osteopathic Medicine in 1990, 36 years ago. Practices with McLaren Central Michigan, a 179-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
36
Trained at
Ohio University, College of Osteopathic Medicine
Licensed in
MI
In the registry since
2006
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

810 S Main St Ste 1
Cheboygan, MI 49721-2290 Not confirmed with CMS for 19 years — call before visiting
Phone: (231) 627-4364
Fax: (231) 627-7758
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence 5101014492 (MI)

Record details

NPI number1275540544
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedAugust 1, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolOHIO UNIVERSITY, COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 1990 (36 years in practice)
Group practice McLaren Central Michigan — 179 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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.

Colonoscopy 42 times · 60th percentile
Upper gastrointestinal (GI) endoscopy for acid reflux 19 times · 50th percentile
Hernia repair - groin (open) 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 patients177
Services billed 246 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 McLaren Central Michigan

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 179 clinicians in the practice; 12 are shown here.

Other providers in Cheboygan