WILLIAM R GREENFIELD MD
NPI 1740272988
Family Medicine in Libertyville, IL

Q: What is William Greenfield's NPI number?

The NPI number for William Greenfield is 1740272988. It was assigned to this individual provider in the NPPES registry on August 15, 2005.

Q: What is William Greenfield's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Active since August 15, 2005PECOS Enrolled

716 S MILWAUKEE AVE, LIBERTYVILLE, IL 60048(847) 362-1393(847) 362-3797 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About William R Greenfield Md NPPES

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

WILLIAM R GREENFIELD MD (NPI 1740272988) is an individual family medicine provider in Libertyville, Illinois and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1740272988

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameWILLIAM R GREENFIELDCredential: MD

Location Address716 S MILWAUKEE AVELibertyville, IL 60048-3225

Mailing Address716 S Milwaukee AveLibertyville, IL 60048-3225 · (847) 362-1393 · Fax (847) 362-3797

Phone(847) 362-1393

Fax(847) 362-3797

Sole ProprietorNo

Enumeration DateAugust 15, 2005

Last NPPES UpdateJuly 8, 2007

✔ NPI 1740272988 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

716 S MILWAUKEE AVE, Libertyville, IL 60048

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Other Identifiers 2

Medicare UPIND10184IL

Medicare ID-Type UnspecifiedP12240IL

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William R Greenfield Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60048 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

$93.02 typical visit price

range $59.81 – $181.38

Typical copayment $23.25 (range $14.95 – $45.34)

Most-billed visit code 99203

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.

CASSANDRA LEIGH SNIDER PA-C

Physician Assistant