RYAN T GASSIN (M.D.) – Anesthesiology Physician, NPI 1417151572
Anesthesiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,228 ANESTHESIOLOGY in MO
Provider Addresses for RYAN T GASSIN (M.D.)
1100 N Kentucky Ave
West Plains, MO 657752029
Phone: (417) 257-9111
Type: Location
PO BOX 505164
SAINT LOUIS, MO 631505164
Phone: (417) 829-4620
Fax: (417) 829-4316
Type: Mailing
Mercy Hospital Springfield, 1235, East Cherokee Street, Meador Park, Springfield, Greene County, Missouri, 65804, United States
SPRINGFIELD, MO 658042203
Phone: (417) 820-2829
Fax: (417) 820-8852
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $157.
Total Amount is formed as General ($157) + Research ($0) + Ownership ($0) = $157.
Last reported payment date: 2024-11-18 • Largest payer in this snapshot: Becton, Dickinson and Company ($140).
Total Amount
$157
General + Research + Ownership
Payments
2
Total payment records
General Amount
$157
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Becton, Dickinson and Company | $140 |
| Edwards Lifesciences Corporation | $17 |
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: 2026-02-25
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 7 Medicare enrollment records; no due dates published yet.
Enrollment records
7
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 |
|---|---|---|---|---|
| I20110818000699 | I | Anesthesiology | MO | TBD |
| I20200717001517 | I | Anesthesiology | AR | TBD |
| I20250621000076 | I | Anesthesiology | CO | TBD |
| I20250709001107 | I | Anesthesiology | GA | TBD |
| I20250903002516 | I | Anesthesiology | OR | TBD |
| I20250910004250 | I | Anesthesiology | WV | TBD |
| I20260225004519 | I | Anesthesiology | FL | 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 |
|---|---|---|---|---|
| 64447 | Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) | 32 | 32 | $0 |
| 64415 | Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) | 22 | 22 | $0 |
Insurance plans in this area (ZIP 65775)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| A N E S T H E S I O L O G Y | NY | |
| Certified Registered Nurse Anesthetist (Crna) | IN | |
| Certified Registered Nurse Anesthetist (Crna) | TX | |
| A N E S T H E S I O L O G Y | TX | |
| Certified Registered Nurse Anesthetist (Crna) | LA | |
| A N E S T H E S I O L O G Y | MI | |
| A N E S T H E S I O L O G Y | AZ | |
| A N E S T H E S I O L O G Y | MA | |
| Certified Registered Nurse Anesthetist (Crna) | MA | |
| A N E S T H E S I O L O G Y | MO |
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