ALAN H WANG MD
NPI 1831376359
Internal Medicine - Gastroenterology in Naperville, IL

Q: What is Alan Wang's NPI number?

The NPI number for Alan Wang is 1831376359. It was assigned to this individual provider in the NPPES registry on January 28, 2008.

Q: What is Alan Wang's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Alan Wang was last updated on August 29, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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 January 28, 2008PECOS EnrolledAccepts Medicare Assignment

100 SPALDING DR, STE 208, NAPERVILLE, IL 60540(630) 717-2600 Get Directions Write a Review

NPPES record last updated: August 29, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Aug 29, 2023, Sep 19, 2019 (2 updates tracked since 2019).

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About Alan H Wang Md NPPES

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

ALAN H WANG MD (NPI 1831376359) is an individual gastroenterology provider in Naperville, Illinois, licensed in Illinois (036119671) and active in the NPI registry since January 2008. He is enrolled in Medicare PECOS, is affiliated with Edward Hospital, and is a graduate of Wayne State University School Of Medicine (2002).

NPPES Registry Identity

NPI1831376359

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameALAN H WANGCredential: MD

Location Address100 SPALDING DR, STE 208Naperville, IL 60540-6550

Mailing AddressPo Box 713260Chicago, IL 60677-1260 · (630) 469-9200

Phone(630) 717-2600

Sole ProprietorNo

Medical School CMSWayne State University School Of MedicineGraduated 2002

Enumeration DateJanuary 28, 2008

Last NPPES UpdateAugust 29, 20232 updates tracked since enumeration

NPPES CertifiedAugust 29, 2023

✔ NPI 1831376359 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 · 036119671

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.

100 SPALDING DR, Naperville, IL 60540

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Other Identifiers 2

Medicaid036119671IL

OtherP00612662IL · Rr 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

Alan H Wang 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 ID1456422690

PECOS Enrollment IDI20080617000088

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 18

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 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.

72 services69 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.

54 services54 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.

53 services52 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

48 services22 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.

44 services43 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.

43 services42 patients

Biopsy of large bowel using a flexible endoscope 45380

39 services38 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

27 services21 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

26 services25 patients

Colorectal cancer screening; colonoscopy on individual at high risk G0105

Colorectal cancer screening, specifically a colonoscopy, is a preventive measure for those at high risk. A thin, flexible tube with a camera inspects the colon to spot any abnormal growths. This test helps detect potential issues early, enhancing the effectiveness of treatment.

25 services25 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.

24 services24 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.

23 services23 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

22 services22 patients

Detection test by nucleic acid for clostridium difficile, amplified probe technique 87493

A detection test by nucleic acid for Clostridium difficile using an amplified probe technique is a lab test that identifies the presence of the Clostridium difficile bacteria in your body. It uses a small sample, often stool, and a technique that amplifies the bacteria's genetic material to confirm its presence.

22 services12 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

17 services17 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

16 services13 patients

Colorectal cancer screening; colonoscopy on individual at high risk G0105

15 services15 patients

Study of esophagus to assess movement 91010

This procedure, known as esophageal manometry, involves studying the esophagus or food pipe to evaluate its movement and pressure. It helps understand how well the esophagus can move food to the stomach. Involving a thin, flexible tube, it's a safe, minimally invasive test.

14 services14 patients

Hospital Affiliations CMS Care Compare

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

Edward Hospital

Acute Care Hospitals · Naperville, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140231

Location801 South WashingtonNaperville, IL 60540 · Du Page County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60540 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.

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Parenteral nutrition solution, not otherwise specified, 10 grams lipids B4185

Other-Enteral and Parenteral · category OB005N

1 supplier52 claims940 services$11.26 avg. paid by Medicare

Parenteral nutrition solution; compounded amino acid and carbohydrates with electrolytes, trace elements and vitamins, including preparation, any strength, 74 to 100 grams of protein - premix B4197

Other-Enteral and Parenteral · category OB005N

1 supplier52 claims183 services$279.45 avg. paid by Medicare

Parenteral nutrition supply kit; premix, per day B4220

Other-Enteral and Parenteral · category OB005N

1 supplier56 claims211 services$8.03 avg. paid by Medicare

Parenteral nutrition administration kit, per day B4224

Other-Enteral and Parenteral · category OB005N

1 supplier56 claims211 services$25.09 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

RAVI NEMIVANT MD

Internal Medicine (Pulmonary Disease)

100 SPALDING DR, STE 102
NAPERVILLE, IL 60540

Dupage County (630) 871-6699

DR. MARK F DANIELS M.D.

Internal Medicine (Gastroenterology)

100 SPALDING DR, STE 208
NAPERVILLE, IL 60540

Dupage County (630) 355-8000

RAFAEL PIEDRA MD

Internal Medicine (Gastroenterology)

100 SPALDING DR, STE 208
NAPERVILLE, IL 60540

Dupage County (630) 717-2600

ALL ABOUT KIDS PEDIATRICS, S.C.

Pediatrics

100 SPALDING DR, SUITE 206
NAPERVILLE, IL 60540

Dupage County (630) 355-6996

EDWARD HEALTH VENTURES

Obstetrics & Gynecology

100 SPALDING DR, STE 406
NAPERVILLE, IL 60540

Dupage County (630) 961-9485

MR. FARIBORZE B BARHAMAND MD

Internal Medicine (Hematology & Oncology)

100 SPALDING DR, STE 110
NAPERVILLE, IL 60540

Dupage County (630) 369-1501

DR. JUAN GABRIEL FLORES M.D.

Internal Medicine (Pulmonary Disease)

100 SPALDING DR, STE 102
NAPERVILLE, IL 60540

Dupage County (630) 871-6699

MRS. SUZAN HATFIELD APN

Nurse Practitioner (Adult Health)

100 SPALDING DR, SUITE # 110
NAPERVILLE, IL 60540

Dupage County (630) 369-1501

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 Alan Wang's NPI number?

The NPI number for Alan Wang is 1831376359. It was assigned to this individual provider in the NPPES registry on January 28, 2008.

Where is Alan Wang located?

Alan Wang practices at 100 Spalding Dr Ste 208, Naperville, IL 60540. The listed phone number is (630) 717-2600.

What is Alan Wang's specialty?

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

Is Alan Wang enrolled in Medicare?

Yes. Alan Wang 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 Alan Wang affiliated with any hospitals?

According to CMS data, Alan Wang is affiliated with Edward Hospital.

When was this NPI record last updated?

The NPPES record for Alan Wang was last updated on August 29, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.