DR. LINDSAY ALYSE MACHEN M.D.
NPI 1649667452
Ophthalmology in Langhorne, PA

Q: What is Lindsay Machen's NPI number?

The NPI number for Lindsay Machen is 1649667452. It was assigned to this individual provider in the NPPES registry on April 20, 2015.

Q: What is Lindsay Machen's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Q: When was this NPI record last updated?

The NPPES record for Lindsay Machen was last updated on June 5, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 20, 2015PECOS EnrolledAccepts Medicare Assignment

360 MIDDLETOWN BLVD STE 402, LANGHORNE, PA 19047(215) 757-6200(215) 750-7875 Get Directions Write a Review

NPPES record last updated: June 5, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jun 5, 2020, Jul 9, 2019, Jun 29, 2016 (3 updates tracked since 2016).

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About Dr. Lindsay Alyse Machen M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. LINDSAY ALYSE MACHEN M.D. (NPI 1649667452) is an individual ophthalmology provider in Langhorne, Pennsylvania, licensed in Pennsylvania (MD466646) and active in the NPI registry since April 2015. She is enrolled in Medicare PECOS and is a graduate of Pennsylvania State University College Of Medicine (2015).

NPPES Registry Identity

NPI1649667452

Entity TypeIndividualFemale

Primary Taxonomy207W00000X

Provider Legal NameDR. LINDSAY ALYSE MACHENCredential: M.D.

Location Address360 MIDDLETOWN BLVD STE 402Langhorne, PA 19047-1863

Mailing Address360 Middletown Blvd Ste 402Langhorne, PA 19047-1863 · (215) 757-6200 · Fax (215) 750-7875

Phone(215) 757-6200

Fax(215) 750-7875

Sole ProprietorNo

Medical School CMSPennsylvania State University College Of MedicineGraduated 2015

Enumeration DateApril 20, 2015

Last NPPES UpdateJune 5, 20203 updates tracked since enumeration

NPPES CertifiedJune 5, 2020

✔ NPI 1649667452 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in PA · MD466646

Definition

An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

Also ListedOphthalmology · Glaucoma SpecialistTaxonomy 207WX0009X · License MD466646 (PA)

360 MIDDLETOWN BLVD STE 402, Langhorne, PA 19047

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter Health, Ambetter Health of Delaware and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Lindsay Alyse Machen M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4880980390

PECOS Enrollment IDI20190617000978

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Lindsay Machen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Tri-Century Eye Care, PC

8.8 mi

Ophthalmology

319 SECOND STREET PIKE
Southampton, PA 18966

Reassigned Medicare billing, Pennsylvania enrollment
Medicare enrollment name: Tri-Century Eye Care, P.C.
19 clinicians in this Medicare group

NPI 1336154087 (215) 355-4428

Wills Eye Ophthalmology Clinic, Inc

22 mi

Ophthalmology

840 WALNUT ST, SUITE 1230
Philadelphia, PA 19107

Reassigned Medicare billing, Pennsylvania enrollment
230 clinicians in this Medicare group

NPI 1184624009 (215) 928-3041

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 17

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

724 services450 patients

Exam of visual field with extended testing 92083

An extended visual field exam is a detailed test to evaluate your peripheral (side) vision. It helps to detect any potential blind spots which may not be noticeable in daily life. These could be caused by eye diseases like glaucoma, or neurological conditions.

361 services353 patients

Imaging of optic nerve 92133

Imaging of the optic nerve is a non-invasive procedure that captures detailed pictures of your optic nerve. It helps doctors assess eye health, particularly for conditions like glaucoma. It's painless, quick, and uses safe technology like MRI or OCT (Optical Coherence Tomography).

316 services311 patients

Established patient complete exam of visual system 92014

An established patient complete exam of the visual system involves a thorough check of your eyes and vision. It assesses eye health, checks for diseases, and measures your ability to see clearly at different distances. It's a routine, non-invasive procedure.

204 services185 patients

Established patient problem focused exam of visual system 92012

This is a routine check-up for existing patients focusing on the visual system. It involves examining your eyes to detect any potential issues or changes in your vision. It's a crucial part of maintaining good eye health.

166 services146 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

166 services141 patients

Exam of the internal drainage system of eye 92020

This is a procedure where your doctor examines the eye's internal drainage system, essential for maintaining eye pressure. They use specialized tools to check for blockages or damage that might lead to conditions like glaucoma. It's non-invasive and painless.

147 services138 patients

Removal of cataract with insertion of prosthetic lens 66984

This is a procedure where a cloudy lens in your eye, known as a cataract, is removed. After removal, a clear artificial lens is inserted. This helps to restore your vision, enabling you to see clearly again.

125 services68 patients

Measurement of corneal curvature and depth of eye 92136

This procedure measures the shape and depth of your eye, specifically the cornea, the clear front surface. It helps in diagnosing conditions, planning for surgeries, or fitting contact lenses. It's non-invasive and painless.

115 services75 patients

Ultrasound scan of cornea to determine thickness 76514

An ultrasound scan of the cornea is a non-invasive procedure that uses sound waves to measure the thickness of your cornea. This helps in diagnosing certain eye conditions and planning treatments. No discomfort or pain is typically experienced.

74 services74 patients

Laser repair to improve eye fluid flow 65855

Laser repair to improve eye fluid flow is a procedure aimed at treating glaucoma. A laser is used to create a small hole in the eye's drainage system, allowing fluid to flow out more easily. This helps to lower the pressure inside the eye, reducing the risk of vision loss.

64 services43 patients

Photography of the retina 92250

Photography of the retina, also known as retinal imaging, is a non-invasive procedure that captures images of the back of your eye. This helps doctors identify and monitor conditions like glaucoma, macular degeneration, or diabetic retinopathy. It's painless and quick, often part of a routine eye exam.

63 services62 patients

Imaging of retina 92134

Imaging of the retina is a non-invasive procedure that captures detailed images of your eye's interior. This helps detect conditions like macular degeneration or retinal detachment. It's painless and takes only a few minutes.

57 services51 patients

New patient complete exam of visual system 92004

A new patient complete exam of the visual system is a thorough evaluation of your eyes and vision. It checks for any potential issues and assesses overall eye health. It includes tests for visual acuity, eye movement, and light response.

31 services31 patients

Incision to improve eye fluid flow 65820

This procedure, known as a trabeculectomy, involves creating a small opening in the eye to improve fluid flow. This can help lower eye pressure in conditions like glaucoma. It's a common, safe procedure to protect your eye health.

19 services14 patients

Creation of eye fluid drainage tract for treatment of glaucoma 66170

This procedure, aimed at treating glaucoma, involves creating a small pathway in the eye to allow fluid to drain more effectively. This helps to lower eye pressure and prevent damage to the optic nerve, preserving your vision.

19 services17 patients

Ct scan of cornea 92025

A CT scan of the cornea is a non-invasive imaging test that uses X-rays to capture detailed pictures of your eye's cornea. It helps in diagnosing diseases or damage, planning for surgery, or evaluating the results of a treatment. It's a safe and painless procedure.

13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19047 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$137.17 typical visit price

range $59.88 – $180.99

Typical copayment $34.29 (range $14.97 – $45.24)

Most-billed visit code 99204

Established Patient

$74.47 typical visit price

range $19.30 – $147.29

Typical copayment $18.61 (range $4.82 – $36.82)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

BLAIR KRISTIN ARMSTRONG M.D.

Ophthalmology