MR. STEPHEN S CHUNG (MD) – Sleep Medicine (Internal Medicine) Physician, NPI 1578673703
Sleep Medicine (Internal Medicine) Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
592 NEUROLOGY in WA
Provider Addresses for MR. STEPHEN S CHUNG (MD)
1215 S Miller St
Wenatchee, WA 988013201
Phone: (509) 663-8711
Type: Location
Wenatchee Valley Medical Center, 820, North Chelan Avenue, Wenatchee, Chelan County, Washington, 98801, United States
WENATCHEE, WA 988012028
Phone: (509) 663-8711
Type: Mailing
19 SOUTHPOINT LN
WALLA WALLA, WA 993624175
Phone: (509) 897-8500
Fax: (509) 897-8501
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 7 Open Payments records for all available years, with a total value of $168.
Total Amount is formed as General ($168) + Research ($0) + Ownership ($0) = $168.
Last reported payment date: 2024-10-25 • Largest payer in this snapshot: Inspire Medical Systems, Inc. ($97).
Total Amount
$168
General + Research + Ownership
Payments
7
Total payment records
General Amount
$168
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-25
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Inspire Medical Systems, Inc. | $97 |
| JAZZ PHARMACEUTICALS INC. | $40 |
| HARMONY BIOSCIENCES LLC | $31 |
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: 2017-08-01
PECOS data refreshed: 2026-06-15
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 |
|---|---|---|---|---|
| I20101008000925 | I | Sleep Medicine | WA | TBD |
| I20170801003841 | I | Neurology | 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 |
|---|---|---|---|---|
| 95811 | Sleep study in sleep lab with continuous airway pressure (6 years or older) | 322 | 146 | $0 |
| 95810 | Sleep study in sleep lab (6 years or older) | 204 | 98 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 168 | 163 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 130 | 125 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 124 | 101 | $0 |
Insurance plans in this area (ZIP 98801)
Loading plans...
Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| NEUROLOGY | WA | 95811 | Sleep monitoring of patient (6 years or older) in sleep lab with continued pressured respiratory assistance by mask or breathing tube | 69 | 65 |
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 | MI | |
| - | WA | |
| Family Practice | ME | |
| Cardiovascular Disease (Cardiology) | WA | |
| - | AZ | |
| Internal Medicine | OR | |
| Emergency Medicine, Family Practice | OR | |
| O B S T E T R I C S/ G Y N E C O L O G Y | OR | |
| Certified Registered Nurse Anesthetist (Crna) | OR | |
| General Surgery | OH |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.