DR. ANNA MAGUIRE NELSON MD, PHD
NPI 1477829216
Emergency Medicine in Portland, OR

Q: What is Anna Nelson's NPI number?

The NPI number for Anna Nelson is 1477829216. It was assigned to this individual provider in the NPPES registry on March 27, 2012.

Q: What is Anna Nelson's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Q: When was this NPI record last updated?

The NPPES record for Anna Nelson was last updated on February 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 27, 2012PECOS Enrolled

2801 N GANTENBEIN AVE, PORTLAND, OR 97227(503) 413-4121 Get Directions Write a Review

NPPES record last updated: February 4, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Dr. Anna Maguire Nelson Md, Phd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ANNA MAGUIRE NELSON MD, PHD (NPI 1477829216) is an individual emergency medicine provider in Portland, Oregon, licensed in Oregon (MD172414) and active in the NPI registry since March 2012. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1477829216

Entity TypeIndividualFemale

Primary Taxonomy207P00000X

Provider Legal NameDR. ANNA MAGUIRE NELSONCredential: MD, PHD

Location Address2801 N GANTENBEIN AVEPortland, OR 97227-1623

Mailing Address2801 N Gantenbein AvePortland, OR 97227-1623 · (503) 413-4121

Phone(503) 413-4121

Sole ProprietorNo

Enumeration DateMarch 27, 2012

Last NPPES UpdateFebruary 4, 2026

NPPES CertifiedFebruary 4, 2026

✔ NPI 1477829216 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207P00000X

License✔ Licensed in OR · MD172414

Definition

An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

2801 N GANTENBEIN AVE, Portland, OR 97227

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Anna Maguire Nelson Md, Phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Anna Nelson reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Legacy Good Samaritan Hospital And Medical Center

1.6 mi

Clinic/Center

1200 NW 23RD AVE
Portland, OR 97210

Reassigned Medicare billing, Oregon enrollment
387 clinicians in this Medicare group

NPI 1679597108 (503) 413-7074

Northwest Acute Care Specialists PC

1.9 mi

Emergency Medicine

101 SW MAIN ST STE 940
Portland, OR 97204

Reassigned Medicare billing, Oregon and Washington enrollments
163 clinicians in this Medicare group

NPI 1215983200 (503) 464-9034

Tuality Medical Group LLC

15 mi

Neurology

364 SE 8TH AVE STE 101
Hillsboro, OR 97123

Reassigned Medicare billing, Oregon enrollment
691 clinicians in this Medicare group

NPI 1639690704 (503) 681-1000

Tuality Healthcare

15 mi

Psychiatric Hospital

335 SE 8TH AVE
Hillsboro, OR 97123

Reassigned Medicare billing, Oregon enrollment
185 clinicians in this Medicare group

NPI 1073817714 (503) 681-1111

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Emergency department visit with high level of medical decision making 99285

An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.

121 services116 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

80 services74 patients

Emergency department visit with moderate level of medical decision making 99284

An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.

29 services28 patients

X-ray of chest, 1 view 71045

A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.

25 services24 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

21 services21 patients

Electrocardiogram (ecg) 1 to 3 leads with review by physician only 93042

An Electrocardiogram (ECG) is a non-invasive test that records the electrical activity of your heart. 1 to 3 leads or sensors are placed on your body to capture this data. A physician then reviews the results to evaluate your heart's health.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97227 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$90.51 typical visit price

range $58.99 – $176.88

Typical copayment $22.62 (range $14.74 – $44.22)

Most-billed visit code 99203

Established Patient

$103.51 typical visit price

range $19.32 – $144.79

Typical copayment $25.87 (range $4.83 – $36.19)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

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