Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

William Zato, DO

Individual provider Family Medicine Physician · NPI 1497796809

William Zato, DO is a Family Practice in Merrillville, Indiana. Graduated from Midwestern University, Chicago College of Osteopathic Med in 1976, 50 years ago. Practices with Advanced Care Medical Specialists PC, a 7-clinician group and accepts Medicare assignment. Licensed in Indiana.

Years since qualifying
50
Trained at
Midwestern University, Chicago College of Osteopathic Med
Licensed in
IN
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

7805 Taft St Ste E
Merrillville, IN 46410-5237
Phone: (219) 230-4667
Fax: (219) 756-3793
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 02000629A (IN)

Record details

NPI number1497796809
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 9, 2006
Last updated in NPPESAugust 18, 2020
Certification dateAugust 18, 2020
Mailing address7805 Taft St Ste E, Merrillville, IN 46410-5237

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Also practisesGERIATRIC MEDICINE
Medical schoolMIDWESTERN UNIVERSITY, CHICAGO COLLEGE OF OSTEOPATHIC MED
Graduated 1976 (50 years in practice)
Group practice Advanced Care Medical Specialists Pc — 7 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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