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

Mark Linton Petersen, MS

Individual provider Mental Health Counselor · NPI 1861551293

Mark Linton Petersen, MS is a Mental Health Counselor in Bellingham, Washington. Qualified in 1986, 40 years ago. Practices with Clallam County Public Hospital District No 1, a 32-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
40
Licensed in
WA
In the registry since
2006
What do these letters mean?
MS — Master of Science
A graduate science degree.

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Practice location Address checks out

4545 Cordata Pkwy
Bellingham, WA 98226-7123 Not confirmed with CMS for 19 years — call before visiting
Phone: (360) 734-7310
Fax: (360) 647-8336
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence LH00004491 (WA)

Record details

NPI number1861551293
Entity typeIndividual (Type 1)
GenderMale
Credentials MS
Sole proprietorYes
NPI enumeratedDecember 8, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyMENTAL HEALTH COUNSELOR
Medical schoolOTHER
Graduated 1986 (40 years in practice)
Group practice Clallam County Public Hospital District No 1 — 32 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Colleagues at Clallam County Public Hospital District No 1

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 32 clinicians in the practice; 12 are shown here.

Other providers in Bellingham