Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Obstetrics/Gynecology

Jack W. Lenox, MD

Works at hospitals in Rockford, IL · Peoria, IL · Illinois

Summary

Jack W. Lenox, MD (Obstetrics/Gynecology) is listed by Medicare at 3 hospitals in Rockford, IL and Peoria, IL. NPI 1508979345. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Jack W. Lenox, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Obstetrics/GynecologyPrimary specialty
YesAccepts Medicare assignment
42Years since medical school (graduated 1984)
Indiana University School Of MedicineMedical school
MaleGender (as listed)
OSF Multi-Specialty GroupGroup practice (+1 more)

Quick answers

Which hospitals does Jack W. Lenox work at?
Medicare's official clinician data lists Jack W. Lenox at 3 hospitals: Saint Anthony Medical Center, Saint Francis Medical Center and UW Health. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Jack W. Lenox see patients?
Medicare's clinician data lists 2 practice locations, including Rockford, IL and Loves Park, IL. Call before your visit to confirm the address.
What is Jack W. Lenox's specialty?
Medicare lists Obstetrics/Gynecology as the primary specialty.
Does Jack W. Lenox accept Medicare assignment?
Yes. Medicare's clinician data says Jack W. Lenox accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Jack W. Lenox?
(815) 226-1172, as listed in official Medicare / NPI Registry data.
What is Jack W. Lenox's NPI number?
1508979345. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Jack W. Lenox works

Medicare's Facility Affiliation Data lists Jack W. Lenox at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Jack W. Lenox is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Jack W. Lenox as a member of these groups (CMS data updated 2026-10-02).

  • OSF Multi-Specialty Group2,114 clinicians in the group
  • Saint Anthony Medical Center44 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Illinois →

Other OB-GYNs in Rockford

Clinicians with the same Medicare primary specialty in Rockford, IL — not a recommendation.

All OB-GYNs in Rockford →

Clinician information

CredentialMD
Medical schoolIndiana University School Of Medicine
Graduation year1984
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1508979345
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians