TOM HONG-CHIH SUN MD
NPI 1306803283
Ophthalmology in Tomball, TX

Q: What is Tom Sun's NPI number?

The NPI number for Tom Sun is 1306803283. It was assigned to this individual provider in the NPPES registry on April 26, 2006.

Q: What is Tom Sun'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 Tom Sun was last updated on March 22, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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 26, 2006PECOS EnrolledAccepts Medicare Assignment

93.42/100

CMS Quality Rating

455 SCHOOL ST, 47, TOMBALL, TX 77375(281) 351-7483(281) 351-9771 Get Directions Write a Review

NPPES record last updated: March 22, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Tom Hong-chih Sun Md NPPES

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

TOM HONG-CHIH SUN MD (NPI 1306803283) is an individual ophthalmology provider in Tomball, Texas, licensed in Texas (J6258) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, is affiliated with Hca Houston Healthcare Tomball, and is a graduate of Rutgers R W Johnson Medical School (cam/new Bruns/pisc) (1990).

NPPES Registry Identity

NPI1306803283

Entity TypeIndividualMale

Primary Taxonomy207W00000X

Provider Legal NameTOM HONG-CHIH SUNCredential: MD

Location Address455 SCHOOL ST, 47Tomball, TX 77375-4595

Mailing Address2855 Gramercy St Ste 400Houston, TX 77025-1697 · (713) 668-6828

Phone(281) 351-7483

Fax(281) 351-9771

Sole ProprietorNo

Medical School CMSRutgers R W Johnson Medical School (cam/new Bruns/pisc)Graduated 1990

Enumeration DateApril 26, 2006

Last NPPES UpdateMarch 22, 2021

NPPES CertifiedMarch 22, 2021

✔ NPI 1306803283 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in TX · J6258

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.

455 SCHOOL ST, Tomball, TX 77375

Open in Google Maps ↗

Other Identifiers 1

Medicaid113484306TX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.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

Tom Hong-chih Sun Md 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 ID3678562782

PECOS Enrollment IDI20100323000373

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 13

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 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.

1,574 services1,508 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.

595 services470 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.

487 services445 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.

436 services419 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.

389 services258 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).

378 services369 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.

332 services194 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.

222 services222 patients

Removal of recurring cataract in lens capsule using a laser 66821

This procedure, known as YAG laser capsulotomy, treats cloudiness in the lens capsule following cataract surgery. A laser is used to create a small hole in the cloudy capsule, allowing light to pass through and restore clear vision. It's a quick, painless procedure.

91 services89 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.

83 services83 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.

60 services53 patients

Exam to measure eye deviation and range of motion 92060

This is an eye exam that checks for any misalignment in your eyes, also known as deviation. It also assesses the movement range of your eyes. The procedure is painless and helps in detecting conditions like strabismus or other vision issues.

22 services22 patients

Exam of visual field with intermediate testing 92082

An exam of the visual field with intermediate testing is a procedure that checks your peripheral (side) vision. It helps to identify blind spots which could be a sign of eye diseases. This non-invasive test is painless and quick.

14 services13 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Hca Houston Healthcare Tomball

Acute Care Hospitals · Tomball, TX

2/5 CMS rating

OwnershipProprietary

CMS Certification Number450670

Location605 HolderriethTomball, TX 77375 · Harris County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77375 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

$134.06 typical visit price

range $58.24 – $176.98

Typical copayment $33.51 (range $14.56 – $44.24)

Most-billed visit code 99204

Established Patient

$72.62 typical visit price

range $18.60 – $143.93

Typical copayment $18.15 (range $4.65 – $35.98)

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.

93.42/100

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

Scored as part of a group practice

Quality

98.14

Improvement Activities

Cost

81.47

Other Providers at the Same Location NPPES 20

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

DR. ASIYA AHMED M.D.

Internal Medicine

455 SCHOOL ST, SUITE 27
TOMBALL, TX 77375

Harris County (281) 357-0666

DR. POONAM SINGH M.D.

Pediatrics

455 SCHOOL ST, STE 26
TOMBALL, TX 77375

Harris County (281) 374-9700

ABA HAGAN FNP

Nurse Practitioner (Family)

455 SCHOOL ST, SUITE 44
TOMBALL, TX 77375

Harris County (281) 357-0661

MS. ELCY MATHAI JOHN MD

Obstetrics & Gynecology

455 SCHOOL ST, SUITE 29
TOMBALL, TX 77375

Harris County (281) 374-1860

ALICIA MARIE QUAGLINO COTA

Occupational Therapy Assistant

455 SCHOOL ST
TOMBALL, TX 77375

Harris County (832) 715-5350

DONALD KENT ECKHARDT MD

Obstetrics & Gynecology

455 SCHOOL ST, SUITE 29
TOMBALL, TX 77375

Harris County (281) 374-1860

CY-FAIR BONE AND JOINT

Orthopaedic Surgery

455 SCHOOL ST, SUITE 24
TOMBALL, TX 77375

Harris County (281) 955-7577

MS. TERESA C. VON WOGLOM LCSW, LPC

Social Worker (Clinical)

455 SCHOOL ST, SUITE 14
TOMBALL, TX 77375

Harris County (281) 351-6561

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 Tom Sun's NPI number?

The NPI number for Tom Sun is 1306803283. It was assigned to this individual provider in the NPPES registry on April 26, 2006.

Where is Tom Sun located?

Tom Sun practices at 455 School St 47, Tomball, TX 77375. The listed phone number is (281) 351-7483.

What is Tom Sun's specialty?

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

Is Tom Sun enrolled in Medicare?

Yes. Tom Sun 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 Tom Sun accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 4 other insurers list Tom Sun 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.

Is Tom Sun affiliated with any hospitals?

According to CMS data, Tom Sun is affiliated with Hca Houston Healthcare Tomball.

When was this NPI record last updated?

The NPPES record for Tom Sun was last updated on March 22, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.