DR. GARY WHAKUK CHUNG (M.D.) – Ophthalmology Physician, NPI 1275642779
Ophthalmology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
466 OPHTHALMOLOGY in WA
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Provider Addresses for DR. GARY WHAKUK CHUNG (M.D.)
Evergreen Eye Center, 34719, 6th Avenue South, Federal Way, King County, Washington, 98003, United States
FEDERAL WAY, WA 980038714
Phone: (206) 212-2100
Fax: (206) 212-2194
Type: Mailing
PO BOX 25020
FEDERAL WAY, WA 980932020
Phone: (206) 212-2100
Fax: (206) 212-2194
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 41 Open Payments records for all available years, with a total value of $3,169.
Total Amount is formed as General ($3,169) + Research ($0) + Ownership ($0) = $3,169.
Last reported payment date: 2024-10-29 • Largest payer in this snapshot: Glaukos Corporation ($1,904).
Total Amount
$3,169
General + Research + Ownership
Payments
41
Total payment records
General Amount
$3,169
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-29
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Glaukos Corporation | $1,904 |
| Alcon Vision LLC | $885 |
| BIOTISSUE HOLDINGS, INC. | $108 |
| ABBVIE INC. | $84 |
| Oyster Point Pharma, Inc. | $34 |
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: 2005-08-01
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 |
|---|---|---|---|---|
| I20050801000825 | I | Ophthalmology | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 304 | 198 | $0 |
| 92136 | Measurement of corneal curvature and depth of eye | 280 | 177 | $0 |
| 92014 | Established patient complete exam of visual system | 258 | 243 | $0 |
| 66984 | Removal of cataract with insertion of prosthetic lens | 251 | 149 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 189 | 140 | $0 |
Insurance plans in this area (ZIP 98003)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| OPHTHALMOLOGY | WA | 92012 | Eye and medical examination for diagnosis and treatment, established patient | 346 | 274 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| O P H T H A L M O L O G Y | WA | |
| O P T O M E T R Y | WA | |
| O P T O M E T R Y | WA | |
| O P H T H A L M O L O G Y | WA | |
| O P H T H A L M O L O G Y | WA | |
| O P T O M E T R Y | WA | |
| O P H T H A L M O L O G Y | WA | |
| O P H T H A L M O L O G Y | AR | |
| O P H T H A L M O L O G Y | CA | |
| O P T O M E T R Y | WA |
Reviews
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