JOANNE SUN YEN (P.A.-C.) – Physician Assistant, NPI 1356671101
Physician Assistant
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
8,491 PHYSICIAN ASSISTANT in TX
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Provider Addresses for JOANNE SUN YEN (P.A.-C.)
Merit Drive, Dallas, Dallas County, Texas, 75251, United States
DALLAS, TX 752512204
Phone: (214) 217-1911
Fax: (214) 217-1912
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 71 Open Payments records for all available years, with a total value of $1,635.
Total Amount is formed as General ($1,635) + Research ($0) + Ownership ($0) = $1,635.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: HARMONY BIOSCIENCES LLC ($265).
Total Amount
$1,635
General + Research + Ownership
Payments
71
Total payment records
General Amount
$1,635
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-18
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: 2011-05-09
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 |
|---|---|---|---|---|
| I20110509000115 | I | Physician Assistant | TX | 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 75251)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Physician Assistant | TX | |
| Physician Assistant | TX | |
| Nurse Practitioner | TX | |
| Nurse Practitioner | TX | |
| Internal Medicine | TN | |
| Sleep Medicine, Pulmonary Disease, Critical Care (Intensivists), Internal Medicine | TX | |
| Physician Assistant | TX |
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