DR. ELLEN LOUISE SINGER M.D.
NPI 1689687279
Internal Medicine in Portland, OR

Active since August 14, 2006PECOS EnrolledAccepts Medicare Assignment
3500 N INTERSTATE AVE, PORTLAND, OR 97227(503) 331-6116 Get Directions Write a Review

NPPES record last updated: January 21, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 21, 2026, Apr 3, 2023, Nov 18, 2015 (3 updates tracked since 2015).

About Dr. Ellen Louise Singer M.d. NPPES

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

DR. ELLEN LOUISE SINGER M.D. (NPI 1689687279) is an individual internal medicine provider in Portland, Oregon, licensed in Oregon (MD19574) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of University Of Rochester School Of Medicine And Dentistry (1990).

NPPES Registry Identity

NPI1689687279
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. ELLEN LOUISE SINGERCredential: M.D.
Location Address3500 N INTERSTATE AVEPortland, OR 97227-1196
Mailing Address500 Ne Multnomah St Ste 100Portland, OR 97232-2031 · (503) 331-6116
Sole ProprietorNo
Medical School CMSUniversity Of Rochester School Of Medicine And DentistryGraduated 1990
Enumeration DateAugust 14, 2006
Last NPPES UpdateJanuary 21, 20263 updates tracked since enumeration
NPPES CertifiedJanuary 21, 2026
NPI 1689687279 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses Licensed in OR · MD19574 Licensed in CO · DR.0068138 Licensed in NY · 188201
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedPediatricsTaxonomy 208000000X · License MD19574 (OR), 188201 (NY)
3500 N INTERSTATE AVE, Portland, OR 97227

Secondary Practice Locations 2

Location 110350 E Dakota AveDenver, CO 80247-1314 · Phone (303) 338-4545
Location 2535 NE 6th AveEstacada, OR 97023-9312 · Phone (503) 630-8550

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Ellen Louise Singer M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9638269004
PECOS Enrollment IDI20071221000404
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.

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
$134.16 typical visit price
range $58.99 – $176.88
Typical copayment $33.54 (range $14.74 – $44.22)
Most-billed visit code 99204
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.

Internal Medicine (Gastroenterology)
3500 N INTERSTATE AVE
PORTLAND, OR 97227
Radiology (Diagnostic Radiology)
3500 N INTERSTATE AVE
PORTLAND, OR 97227
Family Medicine
3500 N INTERSTATE AVE
PORTLAND, OR 97227
Nurse Practitioner (Adult Health)
3500 N INTERSTATE AVE
PORTLAND, OR 97227
Family Medicine
3500 N INTERSTATE AVE
PORTLAND, OR 97227
Nurse Practitioner (Adult Health)
3500 N INTERSTATE AVE
PORTLAND, OR 97227
Social Worker (Clinical)
3500 N INTERSTATE AVE
PORTLAND, OR 97227
Radiology (Diagnostic Radiology)
3500 N INTERSTATE AVE
PORTLAND, OR 97227

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 Ellen Singer's NPI number?

The NPI number for Ellen Singer is 1689687279. It was assigned to this individual provider in the NPPES registry on August 14, 2006.

Where is Ellen Singer located?

Ellen Singer practices at 3500 N Interstate Ave, Portland, OR 97227. The listed phone number is (503) 331-6116.

What is Ellen Singer's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Ellen Singer enrolled in Medicare?

Yes. Ellen Singer is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Ellen Singer accept?

Health plans from BridgeSpan Health Company, Moda Health Plan, Inc., PacificSource Health Plans and Regence BlueCross BlueShield of Oregon list Ellen Singer 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 Ellen Singer was last updated on January 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.