Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Matthew F Larsen, DO

Individual provider Child & Adolescent Psychiatry Physician · NPI 1831413681

Dr. Matthew F Larsen, DO is a Psychiatry in Idaho Falls, Idaho. Qualified in 2010, 16 years ago. Practices with Ascend LLC, a 10-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Idaho.

Years since qualifying
16
Licensed in
ID
In the registry since
2010
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

2001 S Woodruff Ave Ste 9
Idaho Falls, ID 83404-6371
Phone: (208) 419-3002
Fax: (208) 656-5652
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Child & Adolescent Psychiatry Physician (primary) Taxonomy 2084P0804X · Licence O-0856 (ID)

Record details

NPI number1831413681
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedMarch 23, 2010
Last updated in NPPESOctober 14, 2022
Certification dateOctober 14, 2022

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolOTHER
Graduated 2010 (16 years in practice)
Group practice Ascend Llc — 10 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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