COLIN T IOSSO (MD) – Neurology Physician, NPI 1538137484
Neurology Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
590 NEUROLOGY in WA
Provider Addresses for COLIN T IOSSO (MD)
710 Birchwood Ave Ste 201
Bellingham, WA 982251720
Phone: (360) 788-6870
Fax: (360) 788-6872
Type: Location
1608 S J ST FL 5
TACOMA, WA 984054930
Phone: (253) 274-7505
Type: Mailing
16233, Sylvester Road Southwest, Five Corners, Burien, King County, Washington, 98166, United States
STE 260
BURIEN, WA 981663045
Phone: (206) 835-7440
Fax: (206) 835-7459
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 3 Open Payments records for all available years, with a total value of $237.
Total Amount is formed as General ($237) + Research ($0) + Ownership ($0) = $237.
Last reported payment date: 2024-05-09 • Largest payer in this snapshot: Eisai Inc. ($119).
Total Amount
$237
General + Research + Ownership
Payments
3
Total payment records
General Amount
$237
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-05-09
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Eisai Inc. | $119 |
| Stemline Therapeutics Inc. | $103 |
| Alexion Pharmaceuticals, Inc. | $15 |
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: 2011-03-07
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 |
|---|---|---|---|---|
| I20110307000674 | I | Neurology | 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 |
|---|---|---|---|---|
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 70 | 70 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 56 | 48 | $0 |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | 29 | 29 | $0 |
| 95816 | Measurement of brain wave activity (eeg), awake and drowsy | 25 | 25 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 21 | 21 | $0 |
Insurance plans in this area (ZIP 98225)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | SC | |
| Physician Assistant | WA | |
| - | WA | |
| General Surgery | MI | |
| - | WA | |
| Nurse Practitioner | WA | |
| - | WI | |
| - | WA | |
| - | WA | |
| Family Practice | WA |
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