CLAIRE KASSAKIAN (MD) – Nephrology Physician, NPI 1316172984
Nephrology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
141 NEPHROLOGY in OR
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Provider Addresses for CLAIRE KASSAKIAN (MD)
1130, Northwest 22nd Avenue, Northwest District, Portland, Metro, Multnomah County, Oregon, 97210, United States
SUITE 640
PORTLAND, OR 972102900
Phone: (503) 229-7976
Fax: (503) 274-4867
Type: Mailing
Northeast Hoyt Street, Wilkes, Portland, Metro, Multnomah County, Oregon, 97230, United States
PORTLAND, OR 972132957
Phone: (503) 235-5509
Fax: (503) 235-5335
Type: Location
PO BOX 3068
PORTLAND, OR 972083068
Phone: (503) 229-7976
Fax: (503) 274-4867
Type: Mailing
4224 NE HALSEY ST STE 300
PORTLAND, OR 972131568
Phone: (503) 235-5509
Fax: (503) 235-5335
Type: Location
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 $50.
Total Amount is formed as General ($50) + Research ($0) + Ownership ($0) = $50.
Last reported payment date: 2024-11-04 • Largest payer in this snapshot: Bayer Healthcare Pharmaceuticals Inc. ($20).
Total Amount
$50
General + Research + Ownership
Payments
3
Total payment records
General Amount
$50
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-04
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2014-07-12
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 |
|---|---|---|---|---|
| I20140712000149 | I | Nephrology | OR | 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 |
|---|---|---|---|---|
| Q5106 | Injection, epoetin alfa-epbx, biosimilar, (retacrit) (for non-esrd use), 1000 units | 824 | 14 | $0 |
| 90935 | Hemodialysis procedure with physician evaluation | 162 | 62 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 127 | 51 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 104 | 80 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 64 | 30 | $0 |
Insurance plans in this area (ZIP 97210)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| NEPHROLOGY | OR | 83036 | Hemoglobin A1C level | 12 | 11 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | OR | |
| N E P H R O L O G Y | FL | |
| N E P H R O L O G Y | OR | |
| - | OR | |
| N E P H R O L O G Y | OR | |
| N E P H R O L O G Y | OR | |
| Nurse Practitioner | OR | |
| - | FL | |
| Nurse Practitioner | OR | |
| Nephrology, Internal Medicine | OR |
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