Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

SHAHAM S MUMTAZ MD
NPI 1487996526
Internal Medicine - Gastroenterology in Winfield, IL

Active since March 26, 2013PECOS Enrolled
94.1/100
CMS Quality Rating
25 N WINFIELD RD STE 420, WINFIELD, IL 60190(630) 682-8700 Get Directions Write a Review

NPPES record last updated: July 15, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 15, 2026, Jul 18, 2019 (2 updates tracked since 2019).

About Shaham S Mumtaz Md NPPES

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

SHAHAM S MUMTAZ MD (NPI 1487996526) is an individual gastroenterology provider in Winfield, Illinois, licensed in Illinois (125.063006) and active in the NPI registry since March 2013. He is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Delnor Community Hospital, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1487996526
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameSHAHAM S MUMTAZCredential: MD
Location Address25 N WINFIELD RD STE 420Winfield, IL 60190-1222
Mailing Address25 N Winfield Rd Ste 420Winfield, IL 60190-1222 · (630) 682-8700
Sole ProprietorNo
Medical School CMSUniversity Of Missouri, Kansas City, School Of MedicineGraduated 2013
Enumeration DateMarch 26, 2013
Last NPPES UpdateJuly 15, 20262 updates tracked since enumeration
NPPES CertifiedJuly 15, 2026
NPI 1487996526 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Licenses Licensed in IL · 125.063006 Licensed in CA · C206608
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.
Also ListedInternal MedicineTaxonomy 207R00000X · License 125.063006 (IL)
25 N WINFIELD RD STE 420, Winfield, IL 60190

Secondary Practice Locations 2

Location 1302 Randall Rd Ste 105Geneva, IL 60134-4219 · Phone (630) 262-7400
Location 24009 Mission Oaks BlvdCamarillo, CA 93012-5156 · Phone (805) 484-7921 · Fax (805) 388-5404

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

Shaham S Mumtaz 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 ID4385947233
PECOS Enrollment IDI20190715002060
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 11

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.

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.
167 services165 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.
140 services140 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.
88 services79 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.
55 services55 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.
53 services41 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
50 services50 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 60190 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.

94.1/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality82.59
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 11

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

Nurse Practitioner
25 N WINFIELD RD STE 420
WINFIELD, IL 60190
Internal Medicine (Gastroenterology)
25 N WINFIELD RD STE 420
WINFIELD, IL 60190
Nurse Practitioner
25 N WINFIELD RD STE 420
WINFIELD, IL 60190
Nurse Practitioner
25 N WINFIELD RD STE 420
WINFIELD, IL 60190
Internal Medicine (Gastroenterology)
25 N WINFIELD RD STE 420
WINFIELD, IL 60190
Nurse Practitioner
25 N WINFIELD RD STE 420
WINFIELD, IL 60190
Nurse Anesthetist, Certified Registered
25 N WINFIELD RD STE 420
WINFIELD, IL 60190
Internal Medicine (Gastroenterology)
25 N WINFIELD RD STE 420
WINFIELD, IL 60190

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 Shaham Mumtaz's NPI number?

The NPI number for Shaham Mumtaz is 1487996526. It was assigned to this individual provider in the NPPES registry on March 26, 2013.

Where is Shaham Mumtaz located?

Shaham Mumtaz practices at 25 N Winfield Rd Ste 420, Winfield, IL 60190. The listed phone number is (630) 682-8700.

What is Shaham Mumtaz's specialty?

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

Is Shaham Mumtaz enrolled in Medicare?

Yes. Shaham Mumtaz 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 Shaham Mumtaz affiliated with any hospitals?

According to CMS data, Shaham Mumtaz 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 Shaham Mumtaz was last updated on July 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 days 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.