Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Gastroenterology

Erica N. Donnan, MD

Works at hospitals in Coos Bay, OR · Roseburg, OR · Florence, OR … · Oregon

Summary

Dr. Erica N. Donnan, MD is a gastroenterologist at 3355 Riverbend Dr, Suite 500, Springfield, OR 97477. Phone: (541) 868-9500. Accepts Medicare assignment. In 2024, Erica N. Donnan had 161 Original Medicare patients and 397 services. NPI 1396087912. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about Erica N. Donnan, 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 Erica N. Donnan accept Medicare assignment?
Yes. Medicare's clinician data says Erica N. Donnan 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 Erica N. Donnan see?
In 2024, CMS data shows 161 Original Medicare patients and 397 services for Erica N. Donnan. This counts Original Medicare only and measures volume, not quality.
What is Erica N. Donnan's NPI number?
1396087912. 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 Erica N. Donnan, 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 patients161
Services billed to Medicare397
Different services or procedures29
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. Pathology examination of tissue using a microscope, intermediate complexity (88305)84 services
  2. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)54 services
  3. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)28 services
  4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)26 services
  5. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)25 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 cholesterol71%
  • High blood pressure63%
  • Arthritis41%
  • Diabetes26%
  • Depression23%
  • Ischemic heart disease22%

Hospitals where Erica N. Donnan works

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

Group practices

Medicare enrollment lists Erica N. Donnan as a member of this group (CMS data updated October 2, 2026).

  • Eugene Gastroenterology Consultants PC16 clinicians in the group

Specialties

Find other Gastroenterology doctors in Oregon →

Other gastroenterologists in Springfield

Clinicians with the same Medicare primary specialty in Springfield, OR — not a recommendation.

All gastroenterologists in Springfield →

Other clinicians in Eugene Gastroenterology Consultants PC

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

Clinician information

CredentialMD
Medical schoolNorthwestern University Feinberg Medical School
Graduation year2013 (13 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1396087912
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