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

Dr. Mark David Alson, MD

Individual provider Diagnostic Radiology Physician · NPI 1063418028

Dr. Mark David Alson, MD practises Diagnostic Radiology in Clovis, California. Graduated from University of California, San Diego School of Medicine in 1990, 36 years ago. Practices with Saint Agnes Medical Foundation, a 162-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
36
Trained at
University of California, San Diego School of Medicine
Licensed in
CA
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

231 W Fir Ave
Clovis, CA 93611-0220
Phone: (559) 297-0300
Fax: (559) 323-5461
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1510 E Herndon Ave Ste 110, Fresno, CA 93720-3333 — (559) 450-6742

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence G73190 (CA)

Record details

NPI number1063418028
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 23, 2005
Last updated in NPPESMarch 19, 2025
Certification dateMarch 19, 2025

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolUNIVERSITY OF CALIFORNIA, SAN DIEGO SCHOOL OF MEDICINE
Graduated 1990 (36 years in practice)
Group practice Saint Agnes Medical Foundation — 162 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations7 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.

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 patients2,319
Services billed 13,209 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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.

Colleagues at Saint Agnes Medical Foundation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 162 clinicians in the practice; 12 are shown here.

Other providers in Clovis