MR. TIMOTHY ANDRE KLASSEN (CRNA) – Certified Registered Nurse Anesthetist, NPI 1003973157
Certified Registered Nurse Anesthetist
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,131 CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) in MN
Provider Addresses for MR. TIMOTHY ANDRE KLASSEN (CRNA)
41130 620TH AVE
BUTTERFIELD, MN 561204075
Phone: (507) 956-3249
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: 2005-09-21
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 |
|---|---|---|---|---|
| I20050921000097 | I | Certified Registered Nurse Anesthetist (Crna) | MN | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 131 | 62 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 76 | 75 | $0 |
| 99212 | Established patient office or other outpatient visit, 10-19 minutes | 46 | 41 | $0 |
| 64483 | Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level | 37 | 35 | $0 |
| 27096 | Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance | 24 | 22 | $0 |
Insurance plans in this area (ZIP 56120)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| CERTIFIED REGISTERED NURSE ANESTHET | MN | 62311 | Injections of substances into lower or sacral spine | 15 | 12 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | MN | |
| Certified Registered Nurse Anesthetist (Crna) | MN | |
| Clinical Psychologist | MN | |
| Emergency Medicine, Hospitalist, Emergency Medicine, Internal Medicine | MI | |
| Emergency Medicine | CO | |
| - | MN | |
| Family Practice | MN | |
| Family Practice | MN | |
| Certified Registered Nurse Anesthetist (Crna) | MN | |
| Certified Registered Nurse Anesthetist (Crna) | MN |
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