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Physician Assistant

Jessica Heyer

Works at hospitals in Grand Rapids, MI · Michigan

Summary

Jessica Heyer is a physician assistant at 200 Jefferson Ave SE, Mercy Health St. Mary'S, Grand Rapids, MI 49503. Phone: (616) 685-5000. Accepts Medicare assignment. In 2024, Jessica Heyer had 118 Original Medicare patients and 159 services. NPI 1144099896. 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: Physician assistant
  • Address: 200 Jefferson Ave SE, Mercy Health St. Mary'S, Grand Rapids, MI 49503 · Directions
  • Phone: (616) 685‑5000
  • Medicare: Accepts Medicare assignment
  • Hospital: Mercy Health Saint Mary's
  • Group practice: Grand River Emergency Medical Group PLC
  • School: graduated 2023
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Jessica Heyer, 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 Jessica Heyer accept Medicare assignment?
Yes. Medicare's clinician data says Jessica Heyer 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 Jessica Heyer see?
In 2024, CMS data shows 118 Original Medicare patients and 159 services for Jessica Heyer. This counts Original Medicare only and measures volume, not quality.
What is Jessica Heyer's NPI number?
1144099896. 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 Jessica Heyer, 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 patients118
Services billed to Medicare159
Different services or procedures15
Participating Medicare providerYes
Average age of these patients67

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)55 services
  2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)34 services
  3. Emergency department visit with moderate level of medical decision making (99284)32 services
  4. Critical care, first 30-74 minutes (99291)20 services

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 pressure69%
  • High cholesterol63%
  • Arthritis48%
  • Anxiety42%
  • Depression37%
  • Diabetes36%

Hospitals where Jessica Heyer works

Medicare's Facility Affiliation Data lists Jessica Heyer 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 Jessica Heyer is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Jessica Heyer as a member of this group (CMS data updated October 2, 2026).

  • Grand River Emergency Medical Group PLC39 clinicians in the group

Specialties

Find other clinicians: Physician Assistant, Michigan →

Other physician assistants in Grand Rapids

Clinicians with the same Medicare primary specialty in Grand Rapids, MI — not a recommendation.

All physician assistants in Grand Rapids →

Other clinicians in Grand River Emergency Medical Group PLC

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

Clinician information

Graduation year2023
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1144099896
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