DR. ISAAC BAK (O.D.) – Optometrist, NPI 1821168758
Optometrist
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,048 OPTOMETRY in NJ
Provider Addresses for DR. ISAAC BAK (O.D.)
849, Edison Avenue, Northeast Philadelphia, Philadelphia, Philadelphia County, Pennsylvania, 19116, United States
PHILADELPHIA, PA 191161240
Phone: (215) 688-1478
Fax: (609) 734-8403
Type: Mailing
1750 NOTTINGHAM WAY
HAMILTON, NJ 086193551
Phone: (609) 734-7572
Fax: (609) 734-8403
Type: Location
Digital Investigation of Princeton, 731, Nassau Park Boulevard, Nassau Park Pavilion, Princeton, Mercer County, New Jersey, 08540, United States
PRINCETON, NJ 085405918
Phone: (609) 734-7572
Fax: (609) 734-8403
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 10 Open Payments records for all available years, with a total value of $626.
Total Amount is formed as General ($626) + Research ($0) + Ownership ($0) = $626.
Last reported payment date: 2024-10-24 • Largest payer in this snapshot: Alcon Vision LLC ($338).
Total Amount
$626
General + Research + Ownership
Payments
10
Total payment records
General Amount
$626
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-24
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Alcon Vision LLC | $338 |
| Bausch & Lomb Americas Inc. | $247 |
| CooperVision Inc. | $41 |
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: 2012-02-09
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 |
|---|---|---|---|---|
| I20120209000097 | I | Optometry | NJ | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 13 | 13 | $0 |
Insurance plans in this area (ZIP 19116)
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