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Emergency Medicine

Miriam R. Wachter, MD

Works at hospitals in Washington, DC · District of Columbia

Summary

Dr. Miriam R. Wachter, MD is an emergency medicine doctor at 110 Irving St NW, Washington, DC 20010. Phone: (202) 877-7000. Accepts Medicare assignment. In 2024, Miriam R. Wachter had 292 Original Medicare patients and 321 services. NPI 1639313976. 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: 110 Irving St NW, Washington, DC 20010 · Directions (2 more locations)
  • Phone: (202) 877‑7000
  • Medicare: Accepts Medicare assignment
  • Hospital: MedStar Washington Hospital Center
  • Group practice: MedStar Medical Group II LLC
  • Medical school: George Washington University School Of Medicine · graduated 2009 (17 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Miriam R. Wachter, 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 Miriam R. Wachter accept Medicare assignment?
Yes. Medicare's clinician data says Miriam R. Wachter 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 Miriam R. Wachter see?
In 2024, CMS data shows 292 Original Medicare patients and 321 services for Miriam R. Wachter. This counts Original Medicare only and measures volume, not quality.
What is Miriam R. Wachter's NPI number?
1639313976. 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 Miriam R. Wachter, 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 patients292
Services billed to Medicare321
Different services or procedures17
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)116 services
  2. Critical care, first 30-74 minutes (99291)102 services
  3. Emergency department visit with moderate level of medical decision making (99284)55 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%
  • Diabetes51%
  • Arthritis51%
  • Chronic kidney disease47%
  • Ischemic heart disease42%

Hospitals where Miriam R. Wachter works

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

Group practices

Medicare enrollment lists Miriam R. Wachter as a member of this group (CMS data updated October 2, 2026).

  • MedStar Medical Group II LLC3,767 clinicians in the group

Specialties

Find other Emergency Medicine doctors in District of Columbia →

Other emergency medicine doctors in Washington

Clinicians with the same Medicare primary specialty in Washington, DC — not a recommendation.

All emergency medicine doctors in Washington →

Other clinicians in MedStar Medical Group II LLC

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

Clinician information

CredentialMD
Medical schoolGeorge Washington University School Of Medicine
Graduation year2009 (17 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1639313976
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