JOSEPH W HASSLER (CRNA) – Certified Registered Nurse Anesthetist, NPI 1881932960
Certified Registered Nurse Anesthetist
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Profile Insights
NPPES metrics only — not quality of care.
1,775 CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) in MO
Provider Addresses for JOSEPH W HASSLER (CRNA)
751 Sappington Bridge Rd
Sullivan, MO 630802354
Phone: (573) 468-1343
Type: Location
901 E 5TH ST
WASHINGTON, MO 630903127
Phone: (636) 239-8000
Type: Mailing
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.
This can happen when there are no reportable CMS Open Payments records.
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: 2013-08-12
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Past revalidation due date
Earliest CMS due date was 2023-08-31 (1016 days ago).
Enrollment records
1
Earliest due date
2023-08-31
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 |
|---|---|---|---|---|
| I20130812000019 | I | Certified Registered Nurse Anesthetist (Crna) | MO | 2023-08-31 |
What to do next
- Verify current status on the CMS Revalidation Lookup Tool immediately.
- Complete revalidation in PECOS or contact your Medicare Administrative Contractor (MAC).
- Overdue revalidation can lead to deactivation of Medicare billing privileges.
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 |
|---|---|---|---|---|
| 01402 | Anesthesia for procedure for total knee joint replacement | 15 | 15 | $0 |
| 64447 | Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) | 13 | 13 | $0 |
| 00731 | Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 12 | 12 | $0 |
Insurance plans in this area (ZIP 63080)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Anesthesiology Assistant | MO | |
| Certified Registered Nurse Anesthetist (Crna) | MO | |
| Certified Registered Nurse Anesthetist (Crna) | MO | |
| A N E S T H E S I O L O G Y | MO | |
| A N E S T H E S I O L O G Y | MO | |
| A N E S T H E S I O L O G Y | MO | |
| Certified Registered Nurse Anesthetist (Crna) | MO | |
| Certified Registered Nurse Anesthetist (Crna) | MO | |
| Certified Registered Nurse Anesthetist (Crna) | MO | |
| Certified Registered Nurse Anesthetist (Crna) | MO |
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