DR. SAMUEL HUISOK YUN M.D.
NPI 1790071694
Ophthalmology - Retina Specialist in Fairfax, VA

Q: What is Samuel Yun's NPI number?

The NPI number for Samuel Yun is 1790071694. It was assigned to this individual provider in the NPPES registry on June 20, 2011.

Q: What is Samuel Yun's specialty?

The primary specialty registered for this NPI is Ophthalmology, specializing in Retina Specialist, with taxonomy code 207WX0107X.

Q: When was this NPI record last updated?

The NPPES record for Samuel Yun was last updated on February 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months 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 June 20, 2011PECOS EnrolledAccepts Medicare Assignment

100/100

CMS Quality Rating

3930 PENDER DR STE 215, FAIRFAX, VA 22030(703) 364-5400(703) 364-5412 Get Directions Write a Review

NPPES record last updated: February 23, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 24, 2024, Sep 5, 2023, Mar 15, 2019 and 2 more (5 updates tracked since 2018).

On this page

About Dr. Samuel Huisok Yun M.d. NPPES

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

DR. SAMUEL HUISOK YUN M.D. (NPI 1790071694) is an individual retina specialist in Fairfax, Virginia, licensed in Virginia (0101261451) and active in the NPI registry since June 2011. He is enrolled in Medicare PECOS and is a graduate of University Of Virginia School Of Medicine (2011).

NPPES Registry Identity

NPI1790071694

Entity TypeIndividualMale

Primary Taxonomy207WX0107X

Provider Legal NameDR. SAMUEL HUISOK YUNCredential: M.D.

Location Address3930 PENDER DR STE 215Fairfax, VA 22030-0992

Mailing Address3930 Pender Dr Ste 215Fairfax, VA 22030-0992 · (703) 364-5400 · Fax (703) 364-5412

Phone(703) 364-5400

Fax(703) 364-5412

Sole ProprietorNo

Medical School CMSUniversity Of Virginia School Of MedicineGraduated 2011

Enumeration DateJune 20, 2011

Last NPPES UpdateFebruary 23, 20265 updates tracked since enumeration

NPPES CertifiedFebruary 23, 2026

✔ NPI 1790071694 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOphthalmology · Retina SpecialistAllopathic & Osteopathic Physicians

Taxonomy Code207WX0107X

License✔ Licensed in VA · 0101261451

Definition

An ophthalmologist who specializes in the diagnosis and treatment of vitreoretinal diseases.

Also ListedOphthalmologyTaxonomy 207W00000X · License 0101261451 (VA)

3930 PENDER DR STE 215, Fairfax, VA 22030

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource.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

Dr. Samuel Huisok Yun 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 ID3274842067

PECOS Enrollment IDI20190415001877, I20240508002872

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 15

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.

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.

565 services344 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.

431 services301 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.

413 services413 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.

241 services190 patients

Injection of drug into eye 67028

An injection into the eye is a procedure where a medication is delivered directly into your eye to treat various conditions. A local anesthetic is applied to numb the eye, ensuring minimal discomfort. The drug helps manage diseases like macular degeneration or diabetic retinopathy.

124 services27 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.

110 services110 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.

75 services54 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.

64 services64 patients

Injection, bevacizumab, 10 mg J9035

Bevacizumab is a medication given through an injection. It's designed to prevent the growth of new blood vessels that cancer cells need to grow and spread. The 10 mg dose refers to the amount of the drug in the injection.

63 services16 patients

Extended exam of the back part of the eye with optic nerve drawing 92202

This procedure involves a detailed examination of the back part of your eye, focusing on the optic nerve, a crucial component for vision. A drawing or map of the optic nerve is created to help track any changes over time. This can help detect eye diseases early.

42 services42 patients

Closure of tear duct opening using plug 68761

Closure of the tear duct opening using a plug is a procedure to address excessive tear production. A small device is inserted into the tear duct to block it, reducing tear flow and relieving symptoms. This is a safe, reversible process, often performed in-office.

33 services23 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).

15 services15 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.

15 services14 patients

Extended exam of the back part of the eye with retinal drawing 92201

This procedure involves a detailed examination of the back part of your eye, including the retina. It helps identify any abnormalities or issues. A retinal drawing is made to record findings. It's non-invasive and crucial for maintaining eye health.

14 services14 patients

Complex removal of cataract with insertion of prosthetic lens 66982

This procedure involves removing a cloudy lens (cataract) from your eye and replacing it with a clear, artificial lens. It helps restore vision that has been affected by the cataract. The operation is usually done under local anesthesia.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22030 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

$147.85 typical visit price

range $65.18 – $194.86

Typical copayment $36.96 (range $16.29 – $48.71)

Most-billed visit code 99204

Established Patient

$80.66 typical visit price

range $21.40 – $158.88

Typical copayment $20.16 (range $5.35 – $39.72)

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

100/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Individually scored

Quality

93.29

Improvement Activities

Cost

94.44

Reported Quality Measures

Advance Care Plan

100%874 patients5/55-star benchmark: 100%

Age-Related Macular Degeneration (AMD): Dilated Macular Examination

100%238 patients5/55-star benchmark: 100%

Primary Open-Angle Glaucoma (POAG): Reduction of Intraocular Pressure (IOP) by 15% OR Documentation of a Plan of Care

100%172 patients

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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.

WELLNESS PEDIATRICS, P.C.

Pediatrics

3930 PENDER DR STE 215
FAIRFAX, VA 22030

Fairfax City (703) 356-7882

SAMUEL H YUN OPHTHALMOLOGY PLC

Ophthalmology (Retina Specialist)

3930 PENDER DR STE 215
FAIRFAX, VA 22030

Fairfax City (703) 364-5400

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 Samuel Yun's NPI number?

The NPI number for Samuel Yun is 1790071694. It was assigned to this individual provider in the NPPES registry on June 20, 2011.

Where is Samuel Yun located?

Samuel Yun practices at 3930 Pender Dr Ste 215, Fairfax, VA 22030. The listed phone number is (703) 364-5400.

What is Samuel Yun's specialty?

The primary specialty registered for this NPI is Ophthalmology, specializing in Retina Specialist, with taxonomy code 207WX0107X.

Is Samuel Yun enrolled in Medicare?

Yes. Samuel Yun 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 Samuel Yun accept?

Health plans from CareSource list Samuel Yun 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 Samuel Yun was last updated on February 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months 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.