RAFI MOHAMMED ALI M.D.
NPI 1437136454
Internal Medicine - Gastroenterology in Naperville, IL

Q: What is Rafi Ali's NPI number?

The NPI number for Rafi Ali is 1437136454. It was assigned to this individual provider in the NPPES registry on December 30, 2005.

Q: What is Rafi Ali'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 Rafi Ali was last updated on January 14, 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 December 30, 2005PECOS EnrolledAccepts Medicare Assignment

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

NPPES record last updated: January 14, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jan 14, 2021, May 18, 2020 (2 updates tracked since 2020).

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About Rafi Mohammed Ali M.d. NPPES

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

RAFI MOHAMMED ALI M.D. (NPI 1437136454) is an individual gastroenterology provider in Naperville, Illinois, licensed in Illinois (036103847) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS, is affiliated with Elmhurst Memorial Hospital, and is a graduate of R Franklin University Of Med & Sci/chicago Medical School (1997).

NPPES Registry Identity

NPI1437136454

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameRAFI MOHAMMED ALICredential: M.D.

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 CMSR Franklin University Of Med & Sci/chicago Medical SchoolGraduated 1997

Enumeration DateDecember 30, 2005

Last NPPES UpdateJanuary 14, 20212 updates tracked since enumeration

NPPES CertifiedJanuary 14, 2021

✔ NPI 1437136454 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 · 036103847

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

Other100017241IL · Rr Medicare

Medicaid036103847IL

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

Rafi Mohammed Ali 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 ID7315833035

PECOS Enrollment IDI20040227000383

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

Dupage Medical Group Ltd

8.6 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 26

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.

136 services119 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.

106 services106 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.

102 services79 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.

65 services37 patients

Biopsy of large bowel using a flexible endoscope 45380

62 services62 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025

A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.

53 services42 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.

48 services48 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

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.

40 services40 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.

39 services37 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.

36 services33 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.

35 services16 patients

Iron level 83540

An iron level test measures the amount of iron in your blood. Iron is crucial for producing hemoglobin, a protein in red blood cells that carries oxygen throughout your body. This test helps identify iron deficiencies or excesses, which can lead to conditions like anemia or hemochromatosis.

32 services26 patients

Iron binding capacity 83550

Iron binding capacity is a blood test that measures how well your body can bind and transport iron. This helps your healthcare provider assess if your body has too little or too much iron, which can indicate certain health conditions.

32 services26 patients

Ferritin (blood protein) level 82728

A Ferritin level test measures the amount of ferritin, a protein that stores iron, in your blood. It helps determine how much iron your body is storing. If levels are low, it may indicate iron deficiency, while high levels could signify conditions like iron overload.

31 services26 patients

Measurement of tissue transglutaminase 86364

Measurement of tissue transglutaminase is a blood test used to help diagnose conditions like celiac disease. It checks for certain antibodies that your body might produce if you have these conditions. It's a simple, non-invasive procedure.

30 services28 patients

Gammaglobulin (immune system protein) measurement 82784

Gammaglobulin measurement is a blood test that checks the levels of certain proteins (gammaglobulins) that the body uses to fight infections. High or low levels can indicate various health conditions. It's a simple, quick procedure with minimal discomfort.

28 services25 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.

27 services21 patients

Detection of gliadin (deamidated) (dgp) antibody 86258

The detection of Deamidated Gliadin Peptide (dgp) antibody is a blood test that helps diagnose celiac disease, an autoimmune disorder. It identifies antibodies produced by the immune system in response to a protein found in wheat and other grains.

27 services25 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.

21 services21 patients

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

20 services20 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.

19 services19 patients

Blood test, thyroid stimulating hormone (tsh) 84443

A TSH blood test measures the level of thyroid stimulating hormone in your body. This hormone is produced by the pituitary gland and regulates how your thyroid works. It's a simple procedure where a small amount of blood is drawn from your arm for analysis.

16 services16 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.

16 services16 patients

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

14 services14 patients

Blood creatinine level 82565

A blood creatinine level test measures the amount of creatinine in your blood. Creatinine is a waste product that your body produces when it uses energy. High levels may indicate that your kidneys aren't working properly. This test is often used to monitor kidney health.

11 services11 patients

Hospital Affiliations CMS Care Compare

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

Elmhurst Memorial Hospital

Acute Care Hospitals · Elmhurst, IL

4/5 CMS rating

OwnershipProprietary

CMS Certification Number140200

Location155 East Brush Hill RoadElmhurst, IL 60126 · 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 Rafi Ali's NPI number?

The NPI number for Rafi Ali is 1437136454. It was assigned to this individual provider in the NPPES registry on December 30, 2005.

Where is Rafi Ali located?

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

What is Rafi Ali's specialty?

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

Is Rafi Ali enrolled in Medicare?

Yes. Rafi Ali 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 Rafi Ali's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Rafi Ali 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 Rafi Ali's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Rafi Ali affiliated with any hospitals?

According to CMS data, Rafi Ali is affiliated with Elmhurst Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Rafi Ali was last updated on January 14, 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.