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

Individual provider Internal Medicine Physician · NPI 1942470893

Erik Finlayson, MD practises Internal Medicine in Mission Viejo, California. Graduated from Indiana University School of Medicine in 2006, 20 years ago. Practices with Providence Medical Foundation, a 1,465-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
20
Trained at
Indiana University School of Medicine
Licensed in
CA
In the registry since
2008
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

26732 Crown Valley Pkwy Ste 170
Mission Viejo, CA 92691-6337
Phone: (949) 365-2444
Fax: (949) 365-2356
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 27700 Medical Center Rd, Mission Viejo, CA 92691-6426 — (949) 364-6000

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A101340 (CA)

Record details

NPI number1942470893
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 6, 2008
Last updated in NPPESOctober 22, 2021
Certification dateOctober 22, 2021

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolINDIANA UNIVERSITY SCHOOL OF MEDICINE
Graduated 2006 (20 years in practice)
Group practice Providence Medical Foundation — 1465 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients285
Services billed 835 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.

Colleagues at Providence Medical Foundation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1465 clinicians in the practice; 12 are shown here.

Other providers in Mission Viejo