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

Mark A. Carlson, MD

Individual provider Family Medicine Physician · NPI 1851449318

Mark A. Carlson, MD is registered under Family Practice in Mount Vernon, Washington. Graduated from University of Colorado School of Medicine, Denver in 1984, 42 years ago. Practices with Public Hospital Dist No 1 Skagit, a 321-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
42
Trained at
University of Colorado School of Medicine, Denver
Licensed in
WA
In the registry since
2007
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

1400 E Kincade St
Mount Vernon, WA 98274-4127 Not confirmed with CMS for 11 years — call before visiting
Phone: (360) 428-6434
Fax: (360) 848-4233
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence MD00024510 (WA)

Record details

NPI number1851449318
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 8, 2007
Last updated in NPPESJune 4, 2015

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF COLORADO SCHOOL OF MEDICINE, DENVER
Graduated 1984 (42 years in practice)
Group practice Public Hospital Dist No 1 Skagit — 321 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 patients302
Services billed 321 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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 Public Hospital Dist No 1 Skagit

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 321 clinicians in the practice; 12 are shown here.

Other providers in Mount Vernon