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

Tiffany Zelek, LCSW

Individual provider Social Worker · NPI 1447927579

Tiffany Zelek, LCSW is a Clinical Social Worker in Chicago, Illinois. Qualified in 2018, 8 years ago. Practices with Midwest Post Acute Care PLLC, a 120-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
8
Licensed in
IL
In the registry since
2021
Specialties on file
2
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

333 N Michigan Ave Ste 1400
Chicago, IL 60601-4011
Phone: (708) 573-2962
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 149.025157 (IL)
Social Worker Taxonomy 104100000X · Licence 150.103622 (IL)

Record details

NPI number1447927579
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorNo
NPI enumeratedAugust 26, 2021
Last updated in NPPESSeptember 27, 2023
Certification dateAugust 15, 2023

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice Midwest Post Acute Care Pllc — 120 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients48
Services billed 1,048 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Midwest Post Acute Care PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 120 clinicians in the practice; 12 are shown here.

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