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JEFFREY J WILLIAMS D.O.
NPI 1134328644
Obstetrics & Gynecology in New Lenox, IL

Active since July 13, 2007PECOS EnrolledAccepts Medicare Assignment
305 VINE ST, NEW LENOX, IL 60451(815) 463-4746(815) 463-4937 Get Directions Write a Review

NPPES record last updated: March 17, 2021. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Mar 17, 2021, Aug 18, 2020 (2 updates tracked since 2020).

About Jeffrey J Williams D.o. NPPES

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

JEFFREY J WILLIAMS D.O. (NPI 1134328644) is an individual obstetrics & gynecology provider in New Lenox, Illinois, licensed in Illinois (036117200) and active in the NPI registry since July 2007. He is enrolled in Medicare PECOS, maintains a secondary practice location in Olympia Fields, and is a graduate of Mid West Medical College (2003).

NPPES Registry Identity

NPI1134328644
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameJEFFREY J WILLIAMSCredential: D.O.
Location Address305 VINE STNew Lenox, IL 60451-1666
Mailing Address9223 W Saint Francis Rd, 2nd FloorFrankfort, IL 60423-8330 · (815) 806-3111 · Fax (815) 464-2621
Phone(815) 463-4746
Fax(815) 463-4937
Sole ProprietorYes
Medical School CMSMid West Medical CollegeGraduated 2003
Enumeration DateJuly 13, 2007
Last NPPES UpdateMarch 17, 20212 updates tracked since enumeration
NPPES CertifiedMarch 17, 2021
✔ NPI 1134328644 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in IL · 036117200
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
305 VINE ST, New Lenox, IL 60451
Open in Google Maps ↗

Secondary Practice Location 1

Location 120201 Crawford AveOlympia Fields, IL 60461-1010 · Phone (708) 679-2160

Other Identifiers 1

Other036117200IL · License

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter Health, Ambetter Health of Delaware.Insurance ›

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

Jeffrey J Williams D.o. 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 ID7719078211
PECOS Enrollment IDI20180430001447
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 60451 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
$74.38 typical visit price
range $19.15 – $147.12
Typical copayment $18.59 (range $4.78 – $36.78)
Most-billed visit code 99213
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

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

JOAN M COVAULT DO
Family Medicine
305 VINE ST
NEW LENOX, IL 60451
Will County (815) 485-2541

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 Jeffrey Williams's NPI number?

The NPI number for Jeffrey Williams is 1134328644. It was assigned to this individual provider in the NPPES registry on July 13, 2007.

Where is Jeffrey Williams located?

Jeffrey Williams practices at 305 Vine St, New Lenox, IL 60451. The listed phone number is (815) 463-4746.

What is Jeffrey Williams's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Jeffrey Williams enrolled in Medicare?

Yes. Jeffrey Williams 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.

What insurance does Jeffrey Williams accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Home State Health list Jeffrey Williams as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Jeffrey Williams was last updated on March 17, 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.