DR. ADAM MARK KLASSEN (D.C.) – Chiropractor, NPI 1356669576
Chiropractor
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,415 CHIROPRACTIC in WA
Provider Addresses for DR. ADAM MARK KLASSEN (D.C.)
700 MURDOCK ST
SUITE B
SEDRO WOOLLEY, WA 982841426
Phone: (360) 855-1021
Fax: (360) 855-0356
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
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Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2010-07-06
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20100706000009 | I | Chiropractic | WA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 98941 | Chiropractic manipulative treatment, 3-4 spinal regions | 1,197 | 85 | $0 |
Insurance plans in this area (ZIP 98284)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| C H I R O P R A C T I C | TX | |
| C H I R O P R A C T I C | WA | |
| C H I R O P R A C T I C | WA | |
| C H I R O P R A C T I C | WA | |
| C H I R O P R A C T I C | WA | |
| C H I R O P R A C T I C | CA | |
| C H I R O P R A C T I C | WA | |
| C H I R O P R A C T I C | WA | |
| C H I R O P R A C T I C | CO | |
| - | WA |
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