KAREN CHEN (MD, MPHIL) – Ophthalmology Physician, NPI 1376076018
Ophthalmology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
444 OPHTHALMOLOGY in MO
Provider Addresses for KAREN CHEN (MD, MPHIL)
660, South Euclid Avenue, Central West End, City of Saint Louis, Missouri, 63110, United States
DEPARTMENT OF OPHTHALMOLOGY
ST. LOUIS, MO 631101010
Phone:
Type: Mailing
1 BARNES JEW HOSP PLZ
SAINT LOUIS, MO 63110
Phone: (314) 362-5000
Type: Location
243 CHARLES ST
BOSTON, MA 021143002
Phone: (617) 573-3689
Type: Location
1010 PENSACOLA ST
HONOLULU, HI 968142118
Phone: (808) 432-2000
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 20 Open Payments records for all available years, with a total value of $1,641.
Total Amount is formed as General ($1,641) + Research ($0) + Ownership ($0) = $1,641.
Last reported payment date: 2024-12-23 • Largest payer in this snapshot: ABBVIE INC. ($1,187).
Total Amount
$1,641
General + Research + Ownership
Payments
20
Total payment records
General Amount
$1,641
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-23
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $1,187 |
| Sight Sciences, Inc. | $158 |
| Genentech USA, Inc. | $129 |
| RxSight Inc | $120 |
| Alcon Vision LLC | $47 |
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: 2025-02-11
PECOS data refreshed: 2026-05-27
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 |
|---|---|---|---|---|
| I20221108002914 | I | Ophthalmology | HI | TBD |
| I20250211001511 | 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 |
|---|---|---|---|---|
| 92012 | Established patient problem focused exam of visual system | 52 | 21 | $0 |
Insurance plans in this area (ZIP 63110)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Emergency Medicine | DC | |
| Colorectal Surgery (Proctology), General Surgery | LA | |
| - | CA | |
| N E U R O S U R G E R Y | MA | |
| Internal Medicine | CA | |
| Nurse Practitioner | CA | |
| Internal Medicine | CA | |
| Emergency Medicine | CA | |
| - | MA | |
| Emergency Medicine | CA |
Reviews
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