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General Surgery

Rex E. Atwood Iii, MD

Sees patients in Baltimore, MD · Maryland

Summary

Dr. Rex E. Atwood Iii, MD is a general surgeon at 22 S Green St, Baltimore, MD 21201. Phone: (410) 328-6704. Accepts Medicare assignment. NPI 1528421500. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: General surgeon (Medicare lists General Surgery)
  • Address: 22 S Green St, Baltimore, MD 21201 · Directions
  • Phone: (410) 328‑6704
  • Medicare: Accepts Medicare assignment
  • Group practice: Shock Trauma Associates PA
  • Medical school: Geisel School Of Medicine At Dartmouth · graduated 2016 (10 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Rex E. Atwood Iii, 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 Rex E. Atwood Iii accept Medicare assignment?
Yes. Medicare's clinician data says Rex E. Atwood Iii 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.
What is Rex E. Atwood Iii's NPI number?
1528421500. 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 Rex E. Atwood Iii is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Rex E. Atwood Iii as a member of this group (CMS data updated October 2, 2026).

  • Shock Trauma Associates PA261 clinicians in the group

Specialties

Find other General Surgery doctors in Maryland →

Other general surgeons in Baltimore

Clinicians with the same Medicare primary specialty in Baltimore, MD — not a recommendation.

All general surgeons in Baltimore →

Other clinicians in Shock Trauma Associates PA

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

Clinician information

CredentialMD
Medical schoolGeisel School Of Medicine At Dartmouth
Graduation year2016 (10 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1528421500
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 October 2, 2026, retrieved October 29, 2026
  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