DR. LINDSAY ALYSE MACHEN (M.D.) – Ophthalmology Physician, NPI 1649667452
Ophthalmology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,144 OPHTHALMOLOGY in PA
Provider Addresses for DR. LINDSAY ALYSE MACHEN (M.D.)
360 MIDDLETOWN BLVD STE 402
LANGHORNE, PA 190471863
Phone: (215) 757-6200
Fax: (215) 750-7875
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 33 Open Payments records for all available years, with a total value of $1,900.
Total Amount is formed as General ($1,900) + Research ($0) + Ownership ($0) = $1,900.
Last reported payment date: 2024-09-24 • Largest payer in this snapshot: Alcon Vision LLC ($1,025).
Total Amount
$1,900
General + Research + Ownership
Payments
33
Total payment records
General Amount
$1,900
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-09-24
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Alcon Vision LLC | $1,025 |
| Glaukos Corporation | $291 |
| ABBVIE INC. | $187 |
| Sight Sciences, Inc. | $168 |
| Ocular Therapeutix, Inc. | $42 |
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: 2019-06-17
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 |
|---|---|---|---|---|
| I20190617000978 | I | Ophthalmology | PA | 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 | 601 | 393 | $0 |
| 92014 | Established patient complete exam of visual system | 469 | 394 | $0 |
| 92083 | Exam of visual field with extended testing | 398 | 388 | $0 |
| 92133 | Imaging of optic nerve | 353 | 340 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 249 | 192 | $0 |
Insurance plans in this area (ZIP 19047)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | PA | |
| O P H T H A L M O L O G Y | PA | |
| O P H T H A L M O L O G Y | PA | |
| O P T O M E T R Y | PA | |
| O P H T H A L M O L O G Y | PA | |
| O P H T H A L M O L O G Y | PA | |
| O P H T H A L M O L O G Y | PA | |
| O P H T H A L M O L O G Y | PA | |
| O P T O M E T R Y | PA | |
| O P T O M E T R Y | PA |
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