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

Individual provider Obstetrics & Gynecology Physician · NPI 1972950079

Dr. Assumpta Grace Twekise, MD practises Obstetrics/Gynecology in Waterloo, Iowa. Graduated from Tulane University School of Medicine in 2016, 10 years ago. Practices with Covenant Medical Center Inc, a 235-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Iowa.

Years since qualifying
10
Trained at
Tulane University School of Medicine
Licensed in
IA
In the registry since
2016
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

3421 W 9th St Ste G4500
Waterloo, IA 50702-5401
Phone: (319) 272-8200
Fax: (319) 272-0400
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 226 Bluebell Rd, Cedar Falls, IA 50613-6328 — (319) 272-8200

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence MD-46787 (IA)

Record details

NPI number1972950079
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 18, 2016
Last updated in NPPESNovember 19, 2025
Certification dateNovember 19, 2025

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolTULANE UNIVERSITY SCHOOL OF MEDICINE
Graduated 2016 (10 years in practice)
Group practice Covenant Medical Center Inc — 235 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of the uterus 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients46
Services billed 127 a service is one billed item, such as a visit, a test or a procedure
Average patient age68

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 $35 2 payments · 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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Sartori Memorial Hospital, Inc Hospital · Cedar Falls, IA · listed as Sartori Memorial Hospital Inc
  • Mercyone Waterloo Medical Center Hospital · Waterloo, IA

Colleagues at Covenant Medical Center Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 235 clinicians in the practice; 12 are shown here.

Other providers in Waterloo