WEI MING SUN M.D.
NPI 1164487450
Internal Medicine - Gastroenterology in Elgin, IL

Active since April 19, 2006PECOS EnrolledAccepts Medicare Assignment
85.09/100
CMS Quality Rating
745 FLETCHER DR STE 202, ELGIN, IL 60123(847) 888-1300(847) 888-1341 Get Directions Write a Review

NPPES record last updated: January 19, 2023. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Jan 19, 2023, Dec 20, 2021 (2 updates tracked since 2021).

About Wei Ming Sun M.d. NPPES

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

WEI MING SUN M.D. (NPI 1164487450) is an individual gastroenterology provider in Elgin, Illinois, licensed in Illinois (36115607) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, is affiliated with Advocate Sherman Hospital, and is a graduate of Other (1983).

NPPES Registry Identity

NPI1164487450
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameWEI MING SUNCredential: M.D.
Location Address745 FLETCHER DR STE 202Elgin, IL 60123-4749
Mailing Address745 Fletcher Dr Ste 202Elgin, IL 60123-4749 · (847) 244-6320
Fax(847) 888-1341
Sole ProprietorNo
Medical School CMSOtherGraduated 1983
Enumeration DateApril 19, 2006
Last NPPES UpdateJanuary 19, 20232 updates tracked since enumeration
NPPES CertifiedJanuary 19, 2023
NPI 1164487450 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License Licensed in IL · 36115607
Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

745 FLETCHER DR STE 202, Elgin, IL 60123

Other Identifiers 2

Medicaid36115607IL
OtherP00320127IL · Railroad Medicare

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

Wei Ming Sun 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 ID6406866250
PECOS Enrollment IDI20060425000273
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 10

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.
78 services72 patients
Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385
This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.
73 services73 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.
65 services65 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
45 services44 patients
Biopsy of large bowel using a flexible endoscope 45380
A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.
36 services36 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.
31 services30 patients

Hospital Affiliations CMS Care Compare 3

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

Advocate Sherman Hospital

Acute Care Hospitals · Elgin, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140030
Location1425 North Randall RoadElgin, IL 60123 · Kane County
Emergency services Birthing friendly

Northwestern Medicine Mchenry

Acute Care Hospitals · Mchenry, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140116
Location4201 Medical Center DriveMchenry, IL 60050 · Mc Henry County
Emergency services Birthing friendly

Presence Saint Joseph Hospital - Elgin

Acute Care Hospitals · Elgin, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140217
Location77 N Airlite StreetElgin, IL 60123 · Kane County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60123 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
$137.43 typical visit price
range $59.81 – $181.38
Typical copayment $34.35 (range $14.95 – $45.34)
Most-billed visit code 99204
Established Patient
$105.07 typical visit price
range $19.15 – $147.12
Typical copayment $26.26 (range $4.78 – $36.78)
Most-billed visit code 99214
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.

85.09/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality73.16
Promoting Interoperability99
Improvement Activities40
Cost77.98

Other Providers at the Same Location NPPES 6

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

Internal Medicine (Gastroenterology)
745 FLETCHER DR STE 202
ELGIN, IL 60123
Nurse Practitioner
745 FLETCHER DR STE 202
ELGIN, IL 60123
Nurse Practitioner
745 FLETCHER DR STE 202
ELGIN, IL 60123
Internal Medicine (Gastroenterology)
745 FLETCHER DR STE 202
ELGIN, IL 60123
Internal Medicine (Gastroenterology)
745 FLETCHER DR STE 202
ELGIN, IL 60123
Internal Medicine (Gastroenterology)
745 FLETCHER DR STE 202
ELGIN, IL 60123

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 Wei Sun's NPI number?

The NPI number for Wei Sun is 1164487450. It was assigned to this individual provider in the NPPES registry on April 19, 2006.

Where is Wei Sun located?

Wei Sun practices at 745 Fletcher Dr Ste 202, Elgin, IL 60123. The listed phone number is (847) 888-1300.

What is Wei Sun's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Wei Sun enrolled in Medicare?

Yes. Wei 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.

Is Wei Sun affiliated with any hospitals?

According to CMS data, Wei Sun is affiliated with Advocate Sherman Hospital, Northwestern Medicine Mchenry and Presence Saint Joseph Hospital - Elgin.

When was this NPI record last updated?

The NPPES record for Wei Sun was last updated on January 19, 2023. NPI Profile syncs with the weekly NPPES data releases published by CMS.