ZHENZHEN GAO (OD) – Optometrist, NPI 1194379115
Optometrist
Main info
Profile Insights
NPPES metrics only — not quality of care.
Provider Addresses for ZHENZHEN GAO (OD)
4531 MCPHERSON AVE APT 203
SAINT LOUIS, MO 631081959
Phone: (203) 285-5639
Type: Mailing
212 MERRIMACK MEADOWS LN
TEWKSBURY, MA 018761083
Phone: (203) 285-5639
Type: Mailing
339 SQUIRE RD UNIT 200
REVERE, MA 021514309
Phone: (781) 289-5900
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 4 Open Payments records for all available years, with a total value of $287.
Total Amount is formed as General ($287) + Research ($0) + Ownership ($0) = $287.
Last reported payment date: 2024-06-12 • Largest payer in this snapshot: Bausch & Lomb Americas Inc. ($114).
Total Amount
$287
General + Research + Ownership
Payments
4
Total payment records
General Amount
$287
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-06-12
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Bausch & Lomb Americas Inc. | $114 |
| ABBVIE INC. | $94 |
| CooperVision Inc. | $79 |
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: 2023-03-14
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 |
|---|---|---|---|---|
| I20210126000822 | I | Optometry | MA | TBD |
| I20230314001885 | I | Optometry | NH | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 63108)
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