MORRIS B CHANG (M.D.) – Sleep Medicine (Psychiatry & Neurology) Physician, NPI 1164420428
Sleep Medicine (Psychiatry & Neurology) Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
590 NEUROLOGY in WA
Loading map...
Provider Addresses for MORRIS B CHANG (M.D.)
James Tower, 550, 17th Avenue, Central District, Seattle, King County, Washington, 98122, United States
SEATTLE, WA 981225788
Phone: (206) 386-4744
Fax: (206) 215-1135
Type: Location
PO BOX 25608
SALT LAKE CITY, UT 841250608
Phone: (206) 320-4476
Fax: (206) 568-7043
Type: Mailing
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 $320.
Total Amount is formed as General ($320) + Research ($0) + Ownership ($0) = $320.
Last reported payment date: 2024-12-03 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($110).
Total Amount
$320
General + Research + Ownership
Payments
7
Total payment records
General Amount
$320
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-03
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AstraZeneca Pharmaceuticals LP | $110 |
| ZOLL Respicardia, Inc. | $76 |
| JAZZ PHARMACEUTICALS INC. | $74 |
| Itamar Medical Inc | $60 |
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: 2005-09-19
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 |
|---|---|---|---|---|
| I20050919000839 | I | Neurology | 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 | 214 | 187 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 73 | 73 | $0 |
| 95810 | Sleep study in sleep lab (6 years or older) | 69 | 69 | $0 |
| 99443 | Telephone medical discussion with physician, 21-30 minutes | 50 | 46 | $0 |
| 95811 | Sleep study in sleep lab with continuous airway pressure (6 years or older) | 48 | 48 | $0 |
Insurance plans in this area (ZIP 98122)
Loading plans...
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | WA | |
| General Surgery | WA | |
| Orthopedic Surgery | WA | |
| P S Y C H I A T R Y | WA | |
| Hospitalist, Hospice/Palliative Care, Internal Medicine | WA | |
| Hospitalist, Hospice/Palliative Care | WA | |
| Physician Assistant | WA | |
| N E U R O L O G Y | WA | |
| N E U R O L O G Y | WA | |
| Hospitalist, Hospice/Palliative Care, Internal Medicine | ND |
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.