DR. NEAL STEFAN GREENFIELD MD
NPI 1700094364
Internal Medicine - Critical Care Medicine in Winfield, IL

Q: What is Neal Greenfield's NPI number?

The NPI number for Neal Greenfield is 1700094364. It was assigned to this individual provider in the NPPES registry on May 18, 2007.

Q: What is Neal Greenfield's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Q: When was this NPI record last updated?

The NPPES record for Neal Greenfield was last updated on March 17, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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 May 18, 2007PECOS EnrolledAccepts Medicare Assignment

94.1/100

CMS Quality Rating

25 N WINFIELD RD, WINFIELD, IL 60190(630) 933-4700(630) 933-4427 Get Directions Write a Review

NPPES record last updated: March 17, 2017. Verified against the NPPES registry weekly; last sync: August 16, 2026.

On this page

About Dr. Neal Stefan Greenfield Md NPPES

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

DR. NEAL STEFAN GREENFIELD MD (NPI 1700094364) is an individual critical care medicine provider in Winfield, Illinois, licensed in Illinois (036122989) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Delnor Community Hospital, and is a graduate of Other (2005).

NPPES Registry Identity

NPI1700094364

Entity TypeIndividualMale

Primary Taxonomy207RC0200X

Provider Legal NameDR. NEAL STEFAN GREENFIELDCredential: MD

Location Address25 N WINFIELD RDWinfield, IL 60190-1295

Mailing Address25 N Winfield RdWinfield, IL 60190-1295 · (630) 933-4700 · Fax (630) 933-4427

Phone(630) 933-4700

Fax(630) 933-4427

Sole ProprietorNo

Medical School CMSOtherGraduated 2005

Enumeration DateMay 18, 2007

Last NPPES UpdateMarch 17, 2017

✔ NPI 1700094364 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RC0200X

License✔ Licensed in IL · 036122989

Definition

An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

Also ListedInternal MedicineTaxonomy 207R00000X · License 0101242708 (VA), MD 60002695 (WA), MD28328 (OR)

25 N WINFIELD RD, Winfield, IL 60190

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Other Identifiers 5

Other206147IL · Medicare Ptan (group)

Medicaid036122989IL

Other206147127IL · Medicare Ptan (individual)

OtherCA4748IL · Rr Medicare Ptan (group)

OtherP01097051IL · Rr Medicare Ptan (individual)

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

Dr. Neal Stefan Greenfield 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 ID8729151055

PECOS Enrollment IDI20120925000190

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 4

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.

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

238 services168 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.

157 services119 patients

Insertion of artery tube for blood sampling or infusion through skin 36620

This procedure involves placing a small tube into an artery, usually in the wrist or elbow, to collect blood samples or administer medication. It's done under local anesthesia and is a common, safe practice.

14 services14 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.

14 services14 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

Quality

82.59

Promoting Interoperability

100

Improvement Activities

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.

JOSEPH RAYMOND SCHNEIDER MD

Surgery (Vascular Surgery)

25 N WINFIELD RD, SUITE 201
WINFIELD, IL 60190

Dupage County (630) 933-4487

JESSICA LASAK BERNARDI APN

Nurse Practitioner