ALYSSA FLANAGAN KEYSER OD
NPI 1427618123
Optometrist in Hampton Bays, NY

Active since June 17, 2019PECOS EnrolledAccepts Medicare Assignment
4 SPRINGVILLE RD STE A, HAMPTON BAYS, NY 11946(631) 728-3132(316) 728-0976 Get Directions Write a Review

NPPES record last updated: June 15, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jun 15, 2021, Jun 17, 2019 (2 updates tracked since 2019).

About Alyssa Flanagan Keyser Od NPPES

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

ALYSSA FLANAGAN KEYSER OD (NPI 1427618123) is an individual optometrist in Hampton Bays, New York, licensed in New Hampshire (988) and active in the NPI registry since June 2019. She is enrolled in Medicare PECOS and is a graduate of Pennsylvania College Of Optometry (2019).

NPPES Registry Identity

NPI1427618123
Entity TypeIndividualFemale
Primary Taxonomy152W00000X
Provider Legal NameALYSSA FLANAGAN KEYSERCredential: OD
Location Address4 SPRINGVILLE RD STE AHampton Bays, NY 11946-2290
Mailing Address104 Meadow StLittleton, NH 03561-4026 · (603) 444-2592 · Fax (603) 444-6250
Fax(316) 728-0976
Sole ProprietorNo
Medical School CMSPennsylvania College Of OptometryGraduated 2019
Enumeration DateJune 17, 2019
Last NPPES UpdateJune 15, 20212 updates tracked since enumeration
NPPES CertifiedJune 15, 2021
NPI 1427618123 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyOptometristEye and Vision Services Providers
Taxonomy Code152W00000X
License Licensed in NH · 988
Definition

Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

4 SPRINGVILLE RD STE A, Hampton Bays, NY 11946

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Alyssa Flanagan Keyser Od 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 ID244565588
PECOS Enrollment IDI20210603002611
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.

Areas of Expertise CMS Part B claims 8

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.
61 services56 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.
60 services47 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.
28 services27 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).
26 services20 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.
23 services16 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.
23 services18 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11946 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
$154.28 typical visit price
range $67.40 – $203.53
Typical copayment $38.57 (range $16.85 – $50.88)
Most-billed visit code 99204
Established Patient
$83.44 typical visit price
range $21.66 – $164.45
Typical copayment $20.86 (range $5.41 – $41.11)
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 2

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

Technician/Technologist (Optician)
4 SPRINGVILLE RD STE A
HAMPTON BAYS, NY 11946
Technician/Technologist (Optician)
4 SPRINGVILLE RD STE A
HAMPTON BAYS, NY 11946

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Alyssa Keyser's NPI number?

The NPI number for Alyssa Keyser is 1427618123. It was assigned to this individual provider in the NPPES registry on June 17, 2019.

Where is Alyssa Keyser located?

Alyssa Keyser practices at 4 Springville Rd Ste A, Hampton Bays, NY 11946. The listed phone number is (631) 728-3132.

What is Alyssa Keyser's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is Alyssa Keyser enrolled in Medicare?

Yes. Alyssa Keyser is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Alyssa Keyser accept?

Health plans from Anthem Blue Cross and Blue Sheld, Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas and 1 other insurer list Alyssa Keyser as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Alyssa Keyser was last updated on June 15, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.