MS. IRENE H KWON (P.A.) – Physician Assistant, NPI 1992980221
Physician Assistant
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
10,564 PHYSICIAN ASSISTANT in CA
Provider Addresses for MS. IRENE H KWON (P.A.)
205E BUTTERFIELD RD 219
ELMHURST, IL 601265103
Phone: (708) 486-2600
Fax: (708) 486-2610
Type: Mailing
300 PASTEUR DR
STANFORD, CA 943052200
Phone: (650) 723-4000
Type: Location
4411, Ben Franklin Boulevard, Durham, Durham County, North Carolina, 27704, United States
DURHAM, NC 277042147
Phone: (919) 477-0047
Fax: (919) 477-6919
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $32.
Total Amount is formed as General ($32) + Research ($0) + Ownership ($0) = $32.
Last reported payment date: 2023-08-28 • Largest payer in this snapshot: Merck Sharp & Dohme LLC ($32).
Total Amount
$32
General + Research + Ownership
Payments
1
Total payment records
General Amount
$32
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-08-28
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Merck Sharp & Dohme LLC | $32 |
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: 2020-11-04
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 |
|---|---|---|---|---|
| I20201104001043 | I | Physician Assistant | CA | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 60126)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| O B S T E T R I C S/ G Y N E C O L O G Y | TX | |
| - | CA | |
| - | CA | |
| - | CA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | CA | |
| Plastic And Reconstructive Surgery | CA | |
| Anesthesiology, Pain Management | CA | |
| A N E S T H E S I O L O G Y | CA | |
| Orthopedic Surgery | CA | |
| A N E S T H E S I O L O G Y | CA |
Reviews
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