WYNNE CHEN (MD) – Sleep Medicine (Internal Medicine) Physician, NPI 1518974351
Sleep Medicine (Internal Medicine) Physician
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Profile Insights
NPPES metrics only — not quality of care.
102 SLEEP MEDICINE in WA
Provider Addresses for WYNNE CHEN (MD)
PO BOX 50010
RENTON, WA 980585010
Phone: (425) 228-3440
Type: Mailing
4033 TALBOT RD S STE 500
RENTON, WA 980555704
Phone: (425) 251-5110
Fax: (425) 793-7382
Type: Location
904 7TH AVE
SEATTLE, WA 981041132
Phone: (206) 860-5499
Type: Location
3600 LIND AVE SW
SUITE 100 ATTN CREDENTIALING
RENTON, WA 980574970
Phone: (425) 690-2715
Type: Mailing
4011 TALBOT RD S
SUITE 460
RENTON, WA 980555773
Phone: (425) 690-3484
Fax: (425) 690-9084
Type: Location
PO BOX 5127
EVERETT, WA 982065127
Phone: (206) 860-5414
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2025-11-22
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20051129001028 | I | Pulmonary Disease | WA | TBD |
| I20251122000349 | I | Sleep Medicine | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 161 | 146 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 128 | 107 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 39 | 39 | $0 |
| G0400 | Home sleep test (hst) with type iv portable monitor, unattended; minimum of 3 channels | 30 | 29 | $0 |
| 95810 | Sleep study in sleep lab (6 years or older) | 16 | 16 | $0 |
Insurance plans in this area (ZIP 98058)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| PULMONARY DISEASE | WA | 90670 | Pneumococcal vaccine for injection into muscle | 17 | 17 |
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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