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Obstetrics/Gynecology

Chase Petersen, MD

Sees patients in Rockford, IL · Chicago, IL · Illinois

Summary

Chase Petersen, MD (Obstetrics/Gynecology) is enrolled with Medicare at 2 practice locations in Rockford, IL and Chicago, IL. NPI 1407144702. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Chase Petersen, 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
May acceptAccepts Medicare assignment
15Years since medical school (graduated 2011)
University Of Vermont College Of MedicineMedical school
MaleGender (as listed)

Quick answers

Where does Chase Petersen see patients?
Medicare's clinician data lists 2 practice locations, including Rockford, IL and Chicago, IL. Call before your visit to confirm the address.
What is Chase Petersen's specialty?
Medicare lists Obstetrics/Gynecology as the primary specialty.
Does Chase Petersen accept Medicare assignment?
Medicare's clinician data says Chase Petersen may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
What is Chase Petersen's NPI number?
1407144702. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Chase Petersen is enrolled with Medicare (CMS data updated 2026-10-02).

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 Vermont College Of Medicine
Graduation year2011
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1407144702
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians