Visitor Restrictions & COVID-19 Information

Visitor restrictions have been implemented at Franciscan locations across Indiana and Illinois. Many provider office locations have temporarily reduced hours of operation. 


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Franciscan Health is offering a COVID-19 Risk Assessment and medical provider consultations to help direct you to the most appropriate care.



As the world responds to COVID-19, the Franciscan Health Foundation has created the Preparedness & Response Fund to support our response to this public health crisis.


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Nathan S. Windsor DPM, Podiatric Medicine

Nathan S. Windsor, DPM

CALL (219) 836-4669 Print
Primary Specialty

Podiatric Medicine

Provider Type

Franciscan Physician Network


Accepting new patients





The tau symbol represents physicians who are employees of the Franciscan Physician Network, a division of Franciscan Health Inc. All other physicians are independent members of the Medical Staff who choose to practice at a Franciscan Health hospital.

Franciscan Physician Network Hammond Clinic

Franciscan Physician Network Hammond Clinic, Munster, IN

7905 Calumet Avenue
Munster, IN 46321
(219) 836-5800

Franciscan Health Hammond

Franciscan Health Hammond, Hammond, IN

5454 Hohman Avenue
Hammond, IN 46320
(219) 932-2300

Franciscan Health Munster

Franciscan Health Munster, Munster, IN

701 Superior Avenue
Munster, IN 46321
(219) 922-4200

  • Medical School
    Arizona School of Podiatric Medicine, Midwestern University
    Glendale, Arizona
  • Residency
    Midwestern University
    Dyer, Indiana
Ennis Zaitoon MD, Internal Medicine

Ennis Zaitoon, MD

Primary Specialty: Internal Medicine

Location: Franciscan Physician Network Hammond Clinic (Primary)

Xiao R. Li MD, Internal Medicine

Xiao R. Li, MD

Primary Specialty: Internal Medicine

Location: Franciscan Physician Network Hammond Clinic (Primary)

Jacqueline L. Cartier MD, Endocrinology/Diabetes and Metabolism

Jacqueline L. Cartier, MD

Primary Specialty: Endocrinology/Diabetes and Metabolism

Location: Franciscan Physician Network Hammond Clinic (Primary)

Mary Prem MD, Internal Medicine

Mary Prem, MD

Primary Specialty: Internal Medicine

Location: Franciscan Physician Network Hammond Clinic (Primary)


  • Diabetic foot care
  • Heel pain
  • Ankle injuries
  • Ingrown toenails

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