HAROLD MOZWECZ MD
NPI 1356318349
Internal Medicine - Gastroenterology in Naperville, IL

Q: What is Harold Mozwecz's NPI number?

The NPI number for Harold Mozwecz is 1356318349. It was assigned to this individual provider in the NPPES registry on March 8, 2006.

Q: What is Harold Mozwecz'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 Harold Mozwecz was last updated on January 19, 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 March 08, 2006PECOS EnrolledAccepts Medicare Assignment

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

NPPES record last updated: January 19, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 19, 2021, Jan 21, 2019 (2 updates tracked since 2019).

On this page

About Harold Mozwecz Md NPPES

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

HAROLD MOZWECZ MD (NPI 1356318349) is an individual gastroenterology provider in Naperville, Illinois, licensed in Illinois (036075083) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Delnor Community Hospital, and is a graduate of University Of Illinois College Of Med (chi/peor/rock/chm-urb) (1985).

NPPES Registry Identity

NPI1356318349

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameHAROLD MOZWECZCredential: MD

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

Mailing Address1860 Paysphere CirChicago, IL 60674-0018 · (630) 469-9200

Phone(630) 717-2600

Sole ProprietorNo

Medical School CMSUniversity Of Illinois College Of Med (chi/peor/rock/chm-urb)Graduated 1985

Enumeration DateMarch 8, 2006

Last NPPES UpdateJanuary 19, 20212 updates tracked since enumeration

NPPES CertifiedJanuary 19, 2021

✔ NPI 1356318349 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 · 036075083

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

Open in Google Maps ↗

Other Identifiers 1

Medicaid036075083IL

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

Harold Mozwecz 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 ID2365344298

PECOS Enrollment IDI20040122000319

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 19

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.

144 services128 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.

54 services54 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.

46 services46 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.

45 services45 patients

Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk G0121

Colorectal cancer screening, such as a colonoscopy, is a preventive measure to detect early signs of cancer in the large intestine. For individuals not at high risk, it's typically recommended at age 50. A small, flexible tube with a camera is used to examine your colon. It's a safe, effective way to catch issues early.

40 services40 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.

32 services32 patients

Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43235

This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.

31 services30 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.

31 services30 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.

30 services30 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

29 services18 patients

Biopsy of large bowel using a flexible endoscope 45380

23 services23 patients

New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more 99202

This service involves an initial visit to the doctor's office or other outpatient setting. It typically lasts between 15-29 minutes. The doctor will review your medical history, conduct a physical examination, and discuss your health concerns. It's a chance to establish your health baseline and address any immediate medical issues.

21 services21 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.

20 services20 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.

15 services14 patients

Diagnostic exam of large bowel using a flexible endoscope 45378

This procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.

15 services15 patients

Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk G0121

15 services15 patients

Colorectal cancer screening; colonoscopy on individual at high risk G0105

14 services14 patients

Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito G0500

Moderate sedation is a method where a physician uses medication to help you relax during a gastrointestinal endoscopy. An independent trained observer will be present to monitor your vital signs and ensure your safety throughout the procedure. It's a common and safe practice.

14 services14 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.

11 services11 patients

Hospital Affiliations CMS Care Compare 2

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

Northwestern Medicine Delnor Community Hospital

Acute Care Hospitals · Geneva, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140211

Location300 Randall RdGeneva, IL 60134 · Kane County

Emergency services Birthing friendly

Northwestern Medicine Central Dupage Hospital

Acute Care Hospitals · Winfield, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140242

Location25 North Winfield RoadWinfield, IL 60190 · 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.

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 Harold Mozwecz's NPI number?

The NPI number for Harold Mozwecz is 1356318349. It was assigned to this individual provider in the NPPES registry on March 8, 2006.

Where is Harold Mozwecz located?

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

What is Harold Mozwecz's specialty?

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

Is Harold Mozwecz enrolled in Medicare?

Yes. Harold Mozwecz 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 Harold Mozwecz affiliated with any hospitals?

According to CMS data, Harold Mozwecz is affiliated with Northwestern Medicine Delnor Community Hospital and Northwestern Medicine Central Dupage Hospital.

When was this NPI record last updated?

The NPPES record for Harold Mozwecz was last updated on January 19, 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.