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Emergency Medicine

Annemarie L. Utz, MD

Works at hospitals in Williamsburg, VA · Virginia

Summary

Dr. Annemarie L. Utz, MD is an emergency medicine doctor at 100 Sentara Cir, Williamsburg, VA 23188. Phone: (757) 984-6000. Accepts Medicare assignment. In 2024, Annemarie L. Utz had 387 Original Medicare patients and 403 services. NPI 1154370336. 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: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 100 Sentara Cir, Williamsburg, VA 23188 · Directions
  • Phone: (757) 984‑6000
  • Medicare: Accepts Medicare assignment
  • Hospital: Sentara Williamsburg Regional Medical Center
  • Group practice: Williamsburg Emergency Physicians
  • Medical school: Js Weill Medical College, Cornell University · graduated 1996 (30 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Annemarie L. Utz, 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 Annemarie L. Utz accept Medicare assignment?
Yes. Medicare's clinician data says Annemarie L. Utz 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 Annemarie L. Utz see?
In 2024, CMS data shows 387 Original Medicare patients and 403 services for Annemarie L. Utz. This counts Original Medicare only and measures volume, not quality.
What is Annemarie L. Utz's NPI number?
1154370336. 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 Annemarie L. Utz, 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 patients387
Services billed to Medicare403
Different services or procedures9
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)293 services
  2. Critical care, first 30-74 minutes (99291)52 services
  3. Emergency department visit with moderate level of medical decision making (99284)46 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 pressure75%
  • High cholesterol75%
  • Arthritis56%
  • Ischemic heart disease52%
  • Diabetes43%
  • Chronic kidney disease40%

Hospitals where Annemarie L. Utz works

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

Group practices

Medicare enrollment lists Annemarie L. Utz as a member of this group (CMS data updated October 2, 2026).

  • Williamsburg Emergency Physicians8 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Virginia →

Other emergency medicine doctors in Williamsburg

Clinicians with the same Medicare primary specialty in Williamsburg, VA — not a recommendation.

All emergency medicine doctors in Williamsburg →

Other clinicians in Williamsburg Emergency Physicians

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

Clinician information

CredentialMD
Medical schoolJs Weill Medical College, Cornell University
Graduation year1996 (30 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1154370336
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