DR. KU-JUEY RAYMOND CHANG (M.D.) – Endocrinology, Diabetes & Metabolism Physician, NPI 1689611337
Endocrinology, Diabetes & Metabolism Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,404 NEPHROLOGY in CA
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Provider Addresses for DR. KU-JUEY RAYMOND CHANG (M.D.)
PO BOX 511345
LOS ANGELES, CA 900517900
Phone: (916) 949-9100
Type: Mailing
El Toro Road, Lake Forest, Orange County, California, 92610, United States
SUITE 102
LAKE FOREST, CA 926304891
Phone: (949) 916-9100
Fax: (949) 916-0091
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 422 Open Payments records for all available years, with a total value of $160,919.
Total Amount is formed as General ($160,919) + Research ($0) + Ownership ($0) = $160,919.
Last reported payment date: 2024-12-20 • Largest payer in this snapshot: Lilly USA, LLC ($91,848).
Total Amount
$160,919
General + Research + Ownership
Payments
422
Total payment records
General Amount
$160,919
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-20
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Lilly USA, LLC | $91,848 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $61,964 |
| CeQur Corporation | $2,224 |
| ABBVIE INC. | $933 |
| Amgen Inc. | $873 |
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: 2005-03-31
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 |
|---|---|---|---|---|
| I20050331001049 | I | Nephrology | 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.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 910 | 374 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 890 | 376 | $0 |
| 80048 | Blood test, basic group of blood chemicals (calcium, total) | 872 | 373 | $0 |
| 83735 | Magnesium level | 869 | 372 | $0 |
| 84100 | Phosphate level | 867 | 372 | $0 |
Insurance plans in this area (ZIP 90051)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Endocrinology, Internal Medicine | CA | |
| General Practice | CA | |
| Physician Assistant | CA | |
| Internal Medicine, Nephrology | CA | |
| Nurse Practitioner | CA | |
| Physician Assistant | CA | |
| Endocrinology, Internal Medicine | CA | |
| Physician Assistant | CA | |
| Nurse Practitioner | NY | |
| R H E U M A T O L O G Y | CA |
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