NORMAN MATTHEW DECKER M.D.
NPI 1336534650
Internal Medicine in Glen Ellyn, IL

Q: What is Norman Decker's NPI number?

The NPI number for Norman Decker is 1336534650. It was assigned to this individual provider in the NPPES registry on April 2, 2015.

Q: What is Norman Decker's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Norman Decker was last updated on July 23, 2024. 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 April 02, 2015PECOS EnrolledAccepts Medicare Assignment

430 PENNSYLVANIA AVE STE 310, GLEN ELLYN, IL 60137(630) 790-1792(630) 545-7568 Get Directions Write a Review

NPPES record last updated: July 23, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 23, 2024, Sep 11, 2019, May 28, 2019 (3 updates tracked since 2019).

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About Norman Matthew Decker M.d. NPPES

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

NORMAN MATTHEW DECKER M.D. (NPI 1336534650) is an individual internal medicine provider in Glen Ellyn, Illinois, licensed in Illinois (036149373) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS, maintains a secondary practice location in Winfield, and is a graduate of Loyola University Of Chicago, Stritch School Of Medicine (2015).

NPPES Registry Identity

NPI1336534650

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameNORMAN MATTHEW DECKERCredential: M.D.

Location Address430 PENNSYLVANIA AVE STE 310Glen Ellyn, IL 60137-4464

Mailing AddressPob Po Box 713260Chicago, IL 60677-0018 · (630) 469-9200

Phone(630) 790-1792

Fax(630) 545-7568

Sole ProprietorNo

Medical School CMSLoyola University Of Chicago, Stritch School Of MedicineGraduated 2015

Enumeration DateApril 2, 2015

Last NPPES UpdateJuly 23, 20243 updates tracked since enumeration

NPPES CertifiedJuly 23, 2024

✔ NPI 1336534650 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in IL · 036149373

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Also ListedHospitalistTaxonomy 208M00000X · License 036149373 (IL)

430 PENNSYLVANIA AVE STE 310, Glen Ellyn, IL 60137

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Secondary Practice Location 1

Location 125 N Winfield Rd Ste 400Winfield, IL 60190-1222 · Phone (630) 456-7178 · Fax (630) 456-7486

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

Norman Matthew Decker 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 ID9739480369

PECOS Enrollment IDI20190730001630

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 Norman Decker reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Dupage Medical Group Ltd

4.4 mi

Multi-Specialty

1100 W 31ST ST, STE 300
Downers Grove, IL 60515

Reassigned Medicare billing, Illinois enrollment
1,061 clinicians in this Medicare group

NPI 1801833983 (630) 469-9200

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 12

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.

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.

171 services86 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.

149 services67 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.

91 services86 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

82 services81 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.

45 services39 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 services28 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 services27 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.

22 services22 patients

Hemoglobin a1c level 83036

Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.

16 services15 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

16 services16 patients

Blood test, comprehensive group of blood chemicals 80053

A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.

13 services13 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.

13 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60137 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 2

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

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

1 supplier12 claims12 services$59.31 avg. paid by Medicare

Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing K0738

DME-Oxygen and Supplies · category DC000N

1 supplier12 claims12 services$31.15 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 4

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

ASHRUTA J PATEL MD

Internal Medicine

430 PENNSYLVANIA AVE STE 310
GLEN ELLYN, IL 60137

Dupage County (630) 790-1792

WINNIE NHAN DO

Internal Medicine (Endocrinology, Diabetes & Metabolism)

430 PENNSYLVANIA AVE STE 310
GLEN ELLYN, IL 60137

Dupage County (630) 789-4910

DR. RITA JOANNE HERZING M.D.

Internal Medicine

430 PENNSYLVANIA AVE STE 310
GLEN ELLYN, IL 60137

Dupage County (630) 790-1792

MOHIT GUPTA M.D.

Internal Medicine

430 PENNSYLVANIA AVE STE 310
GLEN ELLYN, IL 60137

Dupage County (630) 790-1792

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 Norman Decker's NPI number?

The NPI number for Norman Decker is 1336534650. It was assigned to this individual provider in the NPPES registry on April 2, 2015.

Where is Norman Decker located?

Norman Decker practices at 430 Pennsylvania Ave Ste 310, Glen Ellyn, IL 60137. The listed phone number is (630) 790-1792.

What is Norman Decker's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Norman Decker enrolled in Medicare?

Yes. Norman Decker 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 Norman Decker's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Norman Decker reassigns Medicare benefits to Dupage Medical Group Ltd (Downers Grove, 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 Norman Decker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Norman Decker was last updated on July 23, 2024. 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.