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ANN MARIE LOEFFLER MD
NPI 1053374611
Pediatrics - Pediatric Infectious Diseases in Portland, OR

Active since April 06, 2006PECOS Enrolled
2801 N GANTENBEIN AVE, PORTLAND, OR 97227(503) 413-2042(503) 413-2566 Get Directions Write a Review

NPPES record last updated: April 26, 2012. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Ann Marie Loeffler Md NPPES

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

ANN MARIE LOEFFLER MD (NPI 1053374611) is an individual pediatric infectious diseases provider in Portland, Oregon, licensed in Oregon (MD24226) and active in the NPI registry since April 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1053374611
Entity TypeIndividualFemale
Primary Taxonomy2080P0208X
Provider Legal NameANN MARIE LOEFFLERCredential: MD
Location Address2801 N GANTENBEIN AVEPortland, OR 97227-1623
Mailing Address2801 N Gantenbein AvePortland, OR 97227-1623 · (503) 413-2042 · Fax (503) 413-2566
Phone(503) 413-2042
Fax(503) 413-2566
Sole ProprietorNo
Enumeration DateApril 6, 2006
Last NPPES UpdateApril 26, 2012
✔ NPI 1053374611 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric Infectious DiseasesAllopathic & Osteopathic Physicians
Taxonomy Code2080P0208X
License✔ Licensed in OR · MD24226
Definition
A pediatrician trained to care for children in the diagnosis, treatment and prevention of infectious diseases. This specialist can apply specific knowledge to affect a better outcome for pediatric infections with complicated courses, underlying diseases that predispose to unusual or severe infections, unclear diagnoses, uncommon diseases and complex or investigational treatments.
Also ListedHospitalistTaxonomy 208M00000X · License MD24226 (OR)
2801 N GANTENBEIN AVE, Portland, OR 97227
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Other Names 1

Former Name (1)Ann Marie Apalsch Md

Other Identifiers 3

Medicare UPINE55582OR
Medicaid181981OR
Medicare ID-Type Unspecified116841OR

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include PacificSource Health Plans.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ann Marie Loeffler Md 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

4

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

Legacy Emanuel Hospital & Health Center
Same address
General Acute Care Hospital
2801 N GANTENBEIN AVE
Portland, OR 97227
  • Reassigned Medicare billing, Oregon enrollment
  • 719 clinicians in this Medicare group
NPI 1831112358 (503) 413-2200
Good Samaritan Hospital Corvallis
67 mi
Internal Medicine
1100 7TH AVE SW
Albany, OR 97321
  • Reassigned Medicare billing, Oregon enrollment
  • 522 clinicians in this Medicare group
NPI 1063779205 (541) 812-5600
County Of Santa Clara
560 mi
Clinic/Center
2741 MIDDLEFIELD RD
Palo Alto, CA 94306
  • Reassigned Medicare billing, California enrollment
  • Also billed through NPI 1043354020 (California), NPI 1629301346 (California)
  • 2,460 clinicians in this Medicare group
NPI 1285228080 (408) 885-5000
Mckenzie Physician Services LLC
1,975 mi
General Practice
1573 MALLORY LN STE 100
Brentwood, TN 37027
  • Reassigned Medicare billing, Oregon enrollment
  • 198 clinicians in this Medicare group
NPI 1316909054 (152) 221-1400

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

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.

KARI MAGNUSSEN MS
Genetic Counselor, MS
2801 N GANTENBEIN AVE
PORTLAND, OR 97227
Multnomah County (503) 403-4967
NORTHWEST PEDIATRIC CRITICAL CARE PC
Pediatrics (Pediatric Critical Care Medicine)
2801 N GANTENBEIN AVE
PORTLAND, OR 97227
Multnomah County (503) 413-2794
DR. JANICE FAYE OLSON M.D.
Pediatrics (Pediatric Hematology-Oncology)
2801 N GANTENBEIN AVE
PORTLAND, OR 97227
Multnomah County (503) 276-9300
RADIOLOGY CONSULTANTS, INC
Radiology (Diagnostic Radiology)
2801 N GANTENBEIN AVE
PORTLAND, OR 97227
Multnomah County (503) 227-2400
KATHY SCHWEITZER CNP
Nurse Practitioner (Neonatal)
2801 N GANTENBEIN AVE
PORTLAND, OR 97227
Multnomah County (503) 413-2042
DR. JOEL NORMAN LAMPERT PSY.D., LPC, NCC
Psychologist
2801 N GANTENBEIN AVE
PORTLAND, OR 97227
Multnomah County (503) 276-9300
DR. NATALIE JUSTINE TEDFORD MD
Pediatrics (Pediatric Emergency Medicine)
2801 N GANTENBEIN AVE
PORTLAND, OR 97227
Multnomah County (503) 276-6500
OMAR J BHUTTA MD
Pediatrics (Pediatric Critical Care Medicine)
2801 N GANTENBEIN AVE
PORTLAND, OR 97227
Multnomah County (503) 276-6565

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ann Loeffler's NPI number?

The NPI number for Ann Loeffler is 1053374611. It was assigned to this individual provider in the NPPES registry on April 6, 2006. The provider is also known as Ann Marie Apalsch MD.

Where is Ann Loeffler located?

Ann Loeffler practices at 2801 N Gantenbein Ave, Portland, OR 97227. The listed phone number is (503) 413-2042.

What is Ann Loeffler's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Infectious Diseases, with taxonomy code 2080P0208X.

Is Ann Loeffler enrolled in Medicare?

Yes. Ann Loeffler is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Ann Loeffler's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ann Loeffler reassigns Medicare benefits to 4 organizations: Legacy Emanuel Hospital & Health Center (Portland, OR), Good Samaritan Hospital Corvallis (Albany, OR), County Of Santa Clara (Palo Alto, CA) and Mckenzie Physician Services LLC (Brentwood, TN). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ann Loeffler's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ann Loeffler accept?

Health plans from PacificSource Health Plans list Ann Loeffler as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Ann Loeffler was last updated on April 26, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years 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.