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

Mr. Mark Edmund Lachapelle, MSW

Individual provider Clinical Social Worker · NPI 1790797850

Mr. Mark Edmund Lachapelle, MSW is a Clinical Social Worker in Minnetonka, Minnesota. Qualified in 1981, 45 years ago. Practices as a sole proprietor and offers telehealth. Licensed in Minnesota.

Years since qualifying
45
Licensed in
MN
In the registry since
2006
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.

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Practice location Address checks out

3020 Saint Albans Mill Rd Apt 114
Minnetonka, MN 55305-3989
Phone: (952) 928-8474
Fax: (952) 928-8532
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 967 (MN)

Record details

NPI number1790797850
Entity typeIndividual (Type 1)
GenderMale
Credentials MSW
Sole proprietorYes
NPI enumeratedAugust 13, 2006
Last updated in NPPESMarch 16, 2026
Certification dateMarch 16, 2026

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 1981 (45 years in practice)
Accepts Medicare assignment Not indicated
TelehealthOffers telehealth services

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 patients15
Services billed 358 a service is one billed item, such as a visit, a test or a procedure
Average patient age68

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.

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