SYLVIA LOU CHANG – Ophthalmology Physician, NPI 1053843458
Ophthalmology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
141 OPHTHALMOLOGY in NV
Provider Addresses for SYLVIA LOU CHANG
5840 W. CRAIG RD.
STE. 120 PMB 254
LAS VEGAS, NV 891302804
Phone: (702) 724-2020
Fax: (702) 724-2800
Type: Mailing
330 S RAMPART BLVD STE 360
LAS VEGAS, NV 891455754
Phone: (702) 724-2020
Fax: (702) 724-2800
Type: Location
207 S Santa Anita St Ste P25
San Gabriel, CA 917761145
Phone: (626) 200-1277
Fax: (626) 200-1278
Type: Location
150 S Grand Ave Ste J
Glendora, CA 917414716
Phone: (626) 335-2114
Fax: (626) 963-6497
Type: Location
Loma Linda University Medical Center, 11234, Anderson Street, Loma Linda, San Bernardino County, California, 92354, United States
GME OFFICE WESTERLY SUITE C
LOMA LINDA, CA 923542804
Phone: (909) 558-4074
Type: Mailing
9170 HAVEN AVE STE 102
RANCHO CUCAMONGA, CA 917305416
Phone: (909) 440-1014
Fax: (909) 440-1015
Type: Location
14726 RAMONA AVE STE 203
CHINO, CA 917105730
Phone: (626) 305-9100
Fax: (626) 305-0152
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 30 Open Payments records for all available years, with a total value of $1,382.
Total Amount is formed as General ($1,382) + Research ($0) + Ownership ($0) = $1,382.
Last reported payment date: 2024-11-27 • Largest payer in this snapshot: Alcon Vision LLC ($439).
Total Amount
$1,382
General + Research + Ownership
Payments
30
Total payment records
General Amount
$1,382
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-27
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Alcon Vision LLC | $439 |
| Johnson & Johnson Surgical Vision, Inc. | $252 |
| Sight Sciences, Inc. | $224 |
| Glaukos Corporation | $117 |
| Oyster Point Pharma, Inc. | $109 |
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: 2023-10-10
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 |
|---|---|---|---|---|
| I20231010002001 | I | Ophthalmology | 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 |
|---|---|---|---|---|
| 92014 | Established patient complete exam of visual system | 42 | 42 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 35 | 35 | $0 |
| 92012 | Established patient problem focused exam of visual system | 28 | 26 | $0 |
| 92134 | Imaging of retina | 27 | 27 | $0 |
| 92133 | Imaging of optic nerve | 15 | 15 | $0 |
Insurance plans in this area (ZIP 89130)
Loading plans...
Group practice members
| Name | Specialty | State |
|---|---|---|
| O P H T H A L M O L O G Y | CA | |
| O P T O M E T R Y | CA | |
| O P H T H A L M O L O G Y | CA | |
| O P H T H A L M O L O G Y | CA | |
| O P H T H A L M O L O G Y | OR | |
| O P H T H A L M O L O G Y | CA | |
| O P H T H A L M O L O G Y | MD | |
| O P H T H A L M O L O G Y | CA | |
| O P T O M E T R Y | CA | |
| O P T O M E T R Y | CA |
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.