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Obstetrics/Gynecology

Colette M. Gnade Demik, MD

Works at hospitals in Iowa City, IA · Iowa

Summary

Dr. Colette M. Gnade Demik, MD is an OB-GYN at 105 E 9th St, University of Iowa Health Care Medical Cent, Coralville, IA 52241. Phone: (319) 467-2000. Accepts Medicare assignment. In 2024, Colette M. Gnade Demik had 31 Original Medicare patients and 57 services. NPI 1912437971. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 105 E 9th St, University of Iowa Health Care Medical Cent, Coralville, IA 52241 · Directions (1 more location)
  • Phone: (319) 467‑2000
  • Medicare: Accepts Medicare assignment
  • Hospital: University of Iowa Hospital & Clinics
  • Group practice: State University of Iowa
  • Medical school: University Of Iowa, Rj & L Carver College Of Medicine · graduated 2017 (9 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Colette M. Gnade Demik, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Colette M. Gnade Demik accept Medicare assignment?
Yes. Medicare's clinician data says Colette M. Gnade Demik accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Colette M. Gnade Demik see?
In 2024, CMS data shows 31 Original Medicare patients and 57 services for Colette M. Gnade Demik. This counts Original Medicare only and measures volume, not quality.
What is Colette M. Gnade Demik's NPI number?
1912437971. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Colette M. Gnade Demik, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients31
Services billed to Medicare57
Different services or procedures22
Participating Medicare providerYes
Average age of these patients61

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure65%
  • High cholesterol61%
  • Depression48%
  • Anxiety45%

Hospitals where Colette M. Gnade Demik works

Medicare's Facility Affiliation Data lists Colette M. Gnade Demik at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Colette M. Gnade Demik is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Colette M. Gnade Demik as a member of this group (CMS data updated October 2, 2026).

  • State University of Iowa1,897 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Iowa →

Other OB-GYNs in Coralville

Clinicians with the same Medicare primary specialty in Coralville, IA — not a recommendation.

All OB-GYNs in Coralville →

Other clinicians in State University of Iowa

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolUniversity Of Iowa, Rj & L Carver College Of Medicine
Graduation year2017 (9 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1912437971
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians