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Obstetrics/Gynecology

John C. Trapp, MD

Works at hospitals in Rockford, IL · Illinois

Summary

John C. Trapp, MD (Obstetrics/Gynecology) is listed by Medicare at 1 hospital in Rockford, IL. NPI 1144248204. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about John C. Trapp, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Obstetrics/GynecologyPrimary specialty
YesAccepts Medicare assignment
31Years since medical school (graduated 1995)
University Of Illinois College Of Med (chi/peor/rock/chm-Urb)Medical school
MaleGender (as listed)
Swedishamerican HospitalGroup practice

Quick answers

Which hospitals does John C. Trapp work at?
Medicare's official clinician data lists John C. Trapp at 1 hospital: UW Health. This is where the clinician works or has privileges; call the hospital to confirm.
Where does John C. Trapp see patients?
Medicare's clinician data lists 2 practice locations, including Rockford, IL. Call before your visit to confirm the address.
What is John C. Trapp's specialty?
Medicare lists Obstetrics/Gynecology as the primary specialty.
Does John C. Trapp accept Medicare assignment?
Yes. Medicare's clinician data says John C. Trapp accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for John C. Trapp?
(815) 489-4400, as listed in official Medicare / NPI Registry data.
What is John C. Trapp's NPI number?
1144248204. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where John C. Trapp works

Medicare's Facility Affiliation Data lists John C. Trapp at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where John C. Trapp is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists John C. Trapp as a member of this group (CMS data updated 2026-10-02).

  • Swedishamerican Hospital389 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Illinois →

Other OB-GYNs in Rockford

Clinicians with the same Medicare primary specialty in Rockford, IL — not a recommendation.

All OB-GYNs in Rockford →

Clinician information

CredentialMD
Medical schoolUniversity Of Illinois College Of Med (chi/peor/rock/chm-Urb)
Graduation year1995
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1144248204
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians