EKATERINA KNOWLTON (M.D.) – Surgery Physician, NPI 1578561007
Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
826 GENERAL SURGERY in WA
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Provider Addresses for EKATERINA KNOWLTON (M.D.)
875, Wesley Street, Arlington, Snohomish County, Washington, 98223, United States
SUITE 230
ARLINGTON, WA 982231613
Phone: (360) 435-6097
Fax: (360) 435-1871
Type: Mailing
4033 TALBOT RD S STE 530
RENTON, WA 980555700
Phone: (425) 690-3433
Fax: (425) 690-9433
Type: Location
15209 141ST AVE SE
SNOHOMISH, WA 982906730
Phone: (360) 631-0576
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 15 Open Payments records for all available years, with a total value of $10,017.
Total Amount is formed as General ($10,017) + Research ($0) + Ownership ($0) = $10,017.
Last reported payment date: 2023-11-27 • Largest payer in this snapshot: Intuitive Surgical, Inc. ($9,897).
Total Amount
$10,017
General + Research + Ownership
Payments
15
Total payment records
General Amount
$10,017
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-11-27
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Intuitive Surgical, Inc. | $9,897 |
| Teleflex LLC | $120 |
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: 2010-11-30
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 |
|---|---|---|---|---|
| I20101130001174 | I | General Surgery | 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 |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 44 | 35 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 32 | 32 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 22 | 22 | $0 |
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 22 | 16 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 13 | 11 | $0 |
Insurance plans in this area (ZIP 98223)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Family Practice | WA | |
| Physical Therapist In Private Practice | WA | |
| Internal Medicine, Hospitalist | WA | |
| P S Y C H I A T R Y | WA | |
| Hospice/Palliative Care, Internal Medicine | WA | |
| Internal Medicine, Hospitalist | CA | |
| Family Practice | WA | |
| Family Practice, Emergency Medicine | WA | |
| - | WA | |
| - | WA |
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