Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Barbara Ann Zimmerman Minnich, CNM

Individual provider Advanced Practice Midwife · NPI 1275511925

Barbara Ann Zimmerman Minnich, CNM is a Nurse Practitioner in Chicago, Illinois. Qualified in 1997, 29 years ago. Practices with Optum Medical Group II Rhodes P C, a 302-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois, Nevada and Oklahoma.

Years since qualifying
29
Licensed in
IL, NV, OK
In the registry since
2006
Specialties on file
3
What do these letters mean?
CNM — Certified Nurse-Midwife
An advanced practice nurse who provides prenatal care and delivers babies.

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Practice location Address checks out

5401 S Wentworth Ave
Chicago, IL 60609-6300
Phone: (773) 288-6900
Fax: (773) 268-3020
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 5761 S Fort Apache Rd, Las Vegas, NV 89148-5506 — (702) 341-6610

Specialties & licences

Advanced Practice Midwife (primary) Taxonomy 367A00000X · Licence 209.009431 (IL)
Advanced Practice Midwife Taxonomy 367A00000X · Licence 000727 (NV)
Advanced Practice Midwife Taxonomy 367A00000X · Licence 100316 (OK)

Record details

NPI number1275511925
Entity typeIndividual (Type 1)
GenderFemale
Credentials CNM
Sole proprietorNo
NPI enumeratedJanuary 4, 2006
Last updated in NPPESJuly 27, 2026
Certification dateJuly 27, 2026

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 1997 (29 years in practice)
Group practice Optum Medical Group Ii Rhodes P C — 302 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 patients20
Services billed 40 a service is one billed item, such as a visit, a test or a procedure
Average patient age63

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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $107 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Colleagues at Optum Medical Group II Rhodes P C

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 302 clinicians in the practice; 12 are shown here.

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