DR. GRANT WEI-SIANG SU M.D.
NPI 1386723781
Ophthalmology in Springfield, IL

Q: What is Grant Su's NPI number?

The NPI number for Grant Su is 1386723781. It was assigned to this individual provider in the NPPES registry on November 4, 2006.

Q: What is Grant Su'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 Grant Su was last updated on May 19, 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 November 04, 2006PECOS EnrolledAccepts Medicare Assignment

75/100

CMS Quality Rating

301 N 8TH ST, SPRINGFIELD, IL 62701(217) 528-7541 Get Directions Write a Review

NPPES record last updated: May 19, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Dr. Grant Wei-siang Su M.d. NPPES

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

DR. GRANT WEI-SIANG SU M.D. (NPI 1386723781) is an individual ophthalmology provider in Springfield, Illinois, licensed in Illinois (036117645) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS, is affiliated with St Johns Hospital, and is a graduate of Tufts University School Of Medicine (2001).

NPPES Registry Identity

NPI1386723781

Entity TypeIndividualMale

Primary Taxonomy207W00000X

Provider Legal NameDR. GRANT WEI-SIANG SUCredential: M.D.

Location Address301 N 8TH STSpringfield, IL 62701-1041

Mailing Address1025 S 6th StSpringfield, IL 62703-2403 · (217) 528-7541

Phone(217) 528-7541

Sole ProprietorNo

Medical School CMSTufts University School Of MedicineGraduated 2001

Enumeration DateNovember 4, 2006

Last NPPES UpdateMay 19, 2020

NPPES CertifiedMay 19, 2020

✔ NPI 1386723781 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in IL · 036117645

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.

301 N 8TH ST, Springfield, IL 62701

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Other Identifiers 1

Medicaid036117645IL

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. Grant Wei-siang Su 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 ID2769573252

PECOS Enrollment IDI20070813000732

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 Reassignment

Medicare enrollment records show Grant Su reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Springfield Clinic, LLP

0.9 mi

Multi-Specialty

1025 S 6TH ST
Springfield, IL 62703

Reassigned Medicare billing, Illinois enrollment
735 clinicians in this Medicare group

NPI 1780638478 (217) 528-7541

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 34

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.

Injection, onabotulinumtoxina, 1 unit J0585

Onabotulinumtoxina, also known as Botox, is a medication injected into muscles. It's used to treat various conditions by blocking nerve activity in the muscles, causing a temporary reduction in muscle activity. The units refer to the dosage.

5,600 services23 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

293 services293 patients

Photography of content of eyes 92285

Photography of the content of eyes, also known as ocular photography, captures detailed images of different parts of the eye. It helps identify and monitor conditions like glaucoma, macular degeneration, or diabetic retinopathy. The process is non-invasive and painless.

268 services263 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.

201 services156 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.

162 services161 patients

Temporary closure of eyelids by suture 67875

Temporary closure of eyelids by suture is a medical procedure to protect the eye. It involves stitching the eyelids together to prevent them from opening, often due to injury or disease. This helps to heal the eye by reducing exposure and irritation.

156 services151 patients

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.

137 services132 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

95 services95 patients

Repair of wound of eyelids, nose, ears, or lips by transferring skin, 10.0 sq cm or less 14060

This procedure involves repairing a wound on the eyelids, nose, ears, or lips by moving a small piece of skin (10.0 sq cm or less) from one area to another. The goal is to heal the wound and restore the function and appearance of the affected area.

91 services83 patients

Repair of tendon of upper eyelid 67904

Repair of the tendon of the upper eyelid is a surgical procedure aimed at fixing a droopy eyelid. This condition can affect your vision and appearance. The procedure involves tightening the tendon to lift the eyelid to its normal position, improving both function and aesthetics.

90 services86 patients

Probing of nasal tear duct 68840

Probing of the nasal tear duct is a procedure to treat blocked tear ducts. A thin, flexible instrument is gently inserted into the tear duct to clear any obstruction, allowing tears to drain normally again. This procedure is typically quick and can help to alleviate symptoms like excessive tearing or infection.

85 services85 patients

Reconstruction of eyelid margin 67950

Reconstruction of the eyelid margin is a surgical procedure to repair defects or abnormalities in the eyelid. It helps to protect the eye, improve vision, and enhance appearance. The surgery involves reshaping the eyelid using tissue grafts or flaps.

76 services74 patients

Injection of chemical for paralysis of nerve muscles on side of face 64612

This procedure involves injecting a chemical into specific facial nerves, causing temporary muscle paralysis. It's used to treat conditions like facial spasms or wrinkles. The effects are usually temporary, requiring repeat treatments.

70 services26 patients

Removal of excessive skin and fat of upper eyelid 15823

This procedure, also known as upper eyelid surgery, is performed to remove excess skin and fat from the upper eyelid. It can help improve vision if heavy eyelids hinder it, and can also enhance the appearance of the eyes. It's a common, safe procedure.

67 services67 patients

Removal of growth of eyelid 67840

The removal of an eyelid growth is a procedure performed to eliminate abnormal tissue from your eyelid. It's generally a quick, outpatient treatment. The doctor numbs your eyelid, carefully removes the growth, and may stitch the area if necessary. This can help maintain eye health and vision.

60 services57 patients

Suture repair of turning-outward upper or lower eyelid defect 67914

Suture repair of an outward-turning eyelid defect is a procedure to correct a condition where the upper or lower eyelid turns outwards. During this procedure, the doctor makes a small incision and uses sutures to tighten the eyelid and restore its normal position.

60 services58 patients

Full thickness skin graft to nose, ears, eyelids, or lips, 20.0 sq cm or less 15260

A full thickness skin graft is a procedure where a layer of skin is taken from one area of the body and transplanted to another. If it's done on the nose, ears, eyelids, or lips, it helps restore these areas when damaged. The size of the graft is 20.0 sq cm or less.

38 services36 patients

Probing of nasal tear duct with insertion of tube or stent 68815

This procedure treats blocked tear ducts. A thin probe is gently inserted into the tear duct to clear any blockage. Afterwards, a small tube or stent is placed to keep the pathway open, allowing tears to drain normally again.

33 services31 patients

Extensive repair of turning-inward eyelid defect 67924

This procedure helps correct an eyelid defect where the eyelid turns inward, causing discomfort or vision issues. A surgeon makes precise adjustments to the eyelid's structure, alleviating the inward turn and improving eye health and comfort.

29 services29 patients

Removal of eyelashes using forceps 67820

The removal of eyelashes using forceps is a simple procedure where a medical professional gently extracts unwanted or problematic eyelashes with a specialized tool. This is often done to alleviate discomfort or to treat conditions like trichiasis, where eyelashes grow inward.

26 services21 patients

Injection into conjunctiva 68200

An injection into the conjunctiva is a medical procedure where a small amount of medication is injected into the white part of your eye. This is done to treat various eye conditions, and is usually quick with minimal discomfort.

26 services24 patients

Plastic repair of tear duct 68700

Plastic repair of the tear duct, also known as dacryocystorhinostomy, is a surgical procedure to create a new pathway for tears to drain from the eye when the natural tear duct is blocked. This helps to reduce symptoms like excessive tearing and infection.

26 services26 patients

Removal of growth of eyelid 67840

25 services24 patients

Injection into skin growth, 1-7 growths 11900

This procedure involves injecting medication into 1-7 skin growths. The medication helps to reduce the size of the growths or completely eliminate them. It's a simple, quick, and usually painless process performed by a medical professional.

24 services22 patients

Insertion of probe into nasal tear duct under anesthesia 68811

This procedure involves placing a small probe into your nasal tear duct while you're under anesthesia. Its purpose is to diagnose or treat issues related to tear drainage. You won't feel any discomfort during the procedure due to the anesthesia.

23 services23 patients

Snip incision of tear duct at inner corner of eye 68440

This procedure involves making a small cut in your tear duct, located at the inner corner of your eye. It's typically done to relieve blockage, helping tears drain properly from your eye. It's a common, quick procedure with minimal discomfort.

20 services19 patients

Biopsy of eyelid 67810

A biopsy of the eyelid is a procedure where a small piece of tissue is taken from your eyelid for examination. It helps identify any abnormal growth like a lump or cyst. It's done under local anesthesia, so you won't feel pain during the process.

19 services18 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

19 services18 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).

18 services17 patients

Injection into skin growth, 1-7 growths 11900

16 services14 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.

16 services15 patients

Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg J0702

This injection contains two medications, betamethasone acetate and betamethasone sodium phosphate. It is used to reduce inflammation and pain. It's given by a healthcare professional, often directly into the area causing discomfort.

16 services16 patients

Creation of drainage tract from tear sac to nasal cavity 68720

This procedure, called Dacryocystorhinostomy, creates a new pathway for tears to drain from your eye into your nose. It's done when the natural tear duct is blocked or not working properly. It helps prevent tear overflow and eye infections.

14 services14 patients

Removal of growth of eyelid lining, 1.0 cm or less 68110

This procedure involves the removal of a small growth, 1.0 cm or less, on the lining of your eyelid. It's typically done to improve eye comfort and function. A local anesthetic is used to numb the area, and the growth is then carefully removed.

12 services11 patients

Hospital Affiliations CMS Care Compare 2

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

St Johns Hospital

Acute Care Hospitals · Springfield, IL

3/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number140053

Location800 E Carpenter StSpringfield, IL 62769 · Sangamon County

Emergency services Birthing friendly

Memorial Medical Center

Acute Care Hospitals · Springfield, IL

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140148

Location701 N First StSpringfield, IL 62702 · Sangamon County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 62701 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

$127.46 typical visit price

range $54.80 – $168.44

Typical copayment $31.86 (range $13.70 – $42.11)

Most-billed visit code 99204

Established Patient

$68.64 typical visit price

range $17.16 – $136.56

Typical copayment $17.16 (range $4.29 – $34.14)

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.

75/100

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

Scored through an Alternative Payment Model

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.

REBECCA L SAUNDERS CPNP

Nurse Practitioner

301 N 8TH ST, PAV 4B
SPRINGFIELD, IL 62701

Sangamon County (217) 545-7500

TRACY P MILBRANDT M.D.

Pediatrics

301 N 8TH ST
SPRINGFIELD, IL 62701

Sangamon County (217) 545-4238

ASHLEY KIRKPATRICK MSN,FNP-BC

Nurse Practitioner (Family)

301 N 8TH ST
SPRINGFIELD, IL 62701

Sangamon County (217) 528-8000

JENNIFER LOUISE BERRY AUD

Audiologist

301 N 8TH ST, PAV 5B
SPRINGFIELD, IL 62701

Sangamon County (217) 545-6099

JOSHUA DALE CAMPBELL APRN

Nurse Practitioner (Adult Health)

301 N 8TH ST
SPRINGFIELD, IL 62701

Sangamon County (217) 528-7541

TODD DAVID ELMORE MD

Psychiatry & Neurology (Neurology)

301 N 8TH ST
SPRINGFIELD, IL 62701

Sangamon County (217) 528-7541

CRAIG E BATTERMAN M.D.

Pediatrics

301 N 8TH ST, STE PAV4A
SPRINGFIELD, IL 62701

Sangamon County (217) 545-4238

DR. RAHUL NAYANI MD

Internal Medicine (Gastroenterology)

301 N 8TH ST
SPRINGFIELD, IL 62701

Sangamon County (217) 528-7541

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 Grant Su's NPI number?

The NPI number for Grant Su is 1386723781. It was assigned to this individual provider in the NPPES registry on November 4, 2006.

Where is Grant Su located?

Grant Su practices at 301 N 8th St, Springfield, IL 62701. The listed phone number is (217) 528-7541.

What is Grant Su's specialty?

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

Is Grant Su enrolled in Medicare?

Yes. Grant Su 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.

Which organization bills Medicare for Grant Su's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Grant Su reassigns Medicare benefits to Springfield Clinic, LLP (Springfield, IL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Grant Su's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Grant Su affiliated with any hospitals?

According to CMS data, Grant Su is affiliated with St Johns Hospital and Memorial Medical Center.

When was this NPI record last updated?

The NPPES record for Grant Su was last updated on May 19, 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.