William Zato, DO - Medicare Family Practice in Merrillville, IN

William Zato, DO is a medicare enrolled "Family Medicine" physician in Merrillville, Indiana. He went to Midwestern University, Chicago College Of Osteopathic Med and graduated in 1976 and has 48 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Advanced Care Medical Specialists Pc and his current practice location is 7805 Taft St Ste E, Merrillville, Indiana. You can reach out to his office (for appointments etc.) via phone at (219) 230-4667.

William Zato is licensed to practice in Indiana (license number 02000629A) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1497796809.

Contact Information

William Zato, DO
7805 Taft St Ste E,
Merrillville, IN 46410-5237
(219) 230-4667
(219) 756-3793

Map and Direction




Physician's Profile

Full NameWilliam Zato
GenderMale
SpecialityFamily Practice
Experience48 Years
Location7805 Taft St Ste E, Merrillville, Indiana
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • William Zato attended and graduated from Midwestern University, Chicago College Of Osteopathic Med in 1976
  NPI Data:
  • NPI Number: 1497796809
  • Provider Enumeration Date: 06/09/2006
  • Last Update Date: 08/18/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 7719029297
  • Enrollment ID: I20100121000422

Medical Identifiers

Medical identifiers for William Zato such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1497796809NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 02000629A (Indiana)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Advanced Care Medical Specialists Pc74162515906

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. William Zato allows following entities to bill medicare on his behalf.
Entity NameAdvanced Care Medical Specialists Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1689030918
PECOS PAC ID: 7416251590
Enrollment ID: O20160210001538

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. William Zato is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
William Zato, DO
7805 Taft St Ste E,
Merrillville, IN 46410-5237

Ph: (219) 756-3791
William Zato, DO
7805 Taft St Ste E,
Merrillville, IN 46410-5237

Ph: (219) 230-4667

Reviews and Comments


Family Medicine Doctors in Merrillville, IN

Johann David Farley, MD
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Phone: 219-649-0044    Fax: 219-649-0055
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Dr. Oranu G Ibekie, M.D.
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Jessica Jean Glinski, DNP, FNP-BC
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Lauren Dandurand, AGACNP-BC
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Practice Location: 200 E 89th Ave Ste 2a, Merrillville, IN 46410
Phone: 219-736-2800    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

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