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

Alexander Willoughby

Individual provider Ophthalmology Physician · NPI 1093166191

Alexander Willoughby practises Ophthalmology in Roseburg, Oregon. Graduated from Duke University School of Medicine in 2016, 10 years ago. Practices with Centennial Medical Group Inc, a 61-clinician group and accepts Medicare assignment. Licensed in Oregon.

Years since qualifying
10
Trained at
Duke University School of Medicine
Licensed in
OR
In the registry since
2016
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Practice location Address checks out

341 NW Medical Loop Ste 120
Roseburg, OR 97471-5546
Phone: (541) 440-6388
Fax: (541) 672-0665
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

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence MD196566 (OR)

Record details

NPI number1093166191
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedJune 29, 2016
Last updated in NPPESJuly 22, 2020
Certification dateJuly 22, 2020

Medicare enrollment

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

Medicare specialtyOPHTHALMOLOGY
Medical schoolDUKE UNIVERSITY SCHOOL OF MEDICINE
Graduated 2016 (10 years in practice)
Group practice Centennial Medical Group Inc — 61 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 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.

Cataract surgery 392 times · 93rd percentile
Skin biopsy 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 patients557
Services billed 1,650 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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 Centennial Medical Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 61 clinicians in the practice; 12 are shown here.

Other providers in Roseburg