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ESTHER G CHONG
NPI 1689101396
Internal Medicine - Medical Oncology in Portland, OR

Active since May 12, 2017PECOS EnrolledAccepts Medicare Assignment
3303 S BOND AVE, PORTLAND, OR 97239(503) 494-6594(503) 494-5385 Get Directions Write a Review

NPPES record last updated: July 15, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 15, 2024, May 12, 2017 (2 updates tracked since 2017).

About Esther G Chong NPPES

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

ESTHER G CHONG (NPI 1689101396) is an individual medical oncology provider in Portland, Oregon, licensed in Oregon (MD219107) and active in the NPI registry since May 2017. She is enrolled in Medicare PECOS, is affiliated with Ohsu Hospital And Clinics, and is a graduate of Loma Linda University School Of Medicine (2021).

NPPES Registry Identity

NPI1689101396
Entity TypeIndividualFemale
Primary Taxonomy207RX0202X
Provider Legal NameESTHER G CHONG
Location Address3303 S BOND AVEPortland, OR 97239-4501
Mailing Address1400 Sw 5th Ave Ste 500Portland, OR 97201-5537 · (866) 617-6855 · Fax (503) 346-8015
Phone(503) 494-6594
Fax(503) 494-5385
Sole ProprietorYes
Medical School CMSLoma Linda University School Of MedicineGraduated 2021
Enumeration DateMay 12, 2017
Last NPPES UpdateJuly 15, 20252 updates tracked since enumeration
NPPES CertifiedJuly 15, 2025
✔ NPI 1689101396 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RX0202X
License✔ Licensed in OR · MD219107
Definition
An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.
Also ListedInternal MedicineTaxonomy 207R00000X · License A161243 (CA)
3303 S BOND AVE, Portland, OR 97239
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BridgeSpan Health Company, Kaiser Permanente, Moda Health Plan, Inc. and more.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

Esther G Chong 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 ID9739627662
PECOS Enrollment IDI20240809002994
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.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ohsu Hospital And Clinics

Acute Care Hospitals · Portland, OR
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number380009
Location3181 SW Sam Jackson Park RoadPortland, OR 97239 · Multnomah County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97239 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
$176.88 typical visit price
range $58.99 – $176.88
Typical copayment $44.22 (range $14.74 – $44.22)
Most-billed visit code 99205
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.

CHERYL STOMBERG FNP
Nurse Practitioner (Family)
3303 S BOND AVE
PORTLAND, OR 97239
Multnomah County (503) 494-6594
KIT MIRANDA
Speech-Language Pathologist
3303 S BOND AVE
PORTLAND, OR 97239
Multnomah County (503) 494-5947
MRS. LINDSAY EVELYN WYANT PAC
Physician Assistant (Surgical)
3303 S BOND AVE
PORTLAND, OR 97239
Multnomah County (503) 494-8510
MS. STEFANIE ANN BROWN L.C.S.W.
Social Worker (Clinical)
3303 S BOND AVE
PORTLAND, OR 97239
Multnomah County (503) 494-1775
DR. MELISSA DANIELLE ADAIR ARNP
Nurse Practitioner (Family)
3303 S BOND AVE
PORTLAND, OR 97239
Multnomah County (503) 418-3376
EMMA MARIANE JONES
Physician Assistant (Medical)
3303 S BOND AVE
PORTLAND, OR 97239
Multnomah County (503) 494-8573
EMMA JO NEUMANN
Social Worker (Clinical)
3303 S BOND AVE
PORTLAND, OR 97239
Multnomah County (503) 418-7730
MICHAEL ZATT
Psychiatry & Neurology (Neurology)
3303 S BOND AVE
PORTLAND, OR 97239
Multnomah County (503) 494-7772

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 Esther Chong's NPI number?

The NPI number for Esther Chong is 1689101396. It was assigned to this individual provider in the NPPES registry on May 12, 2017.

Where is Esther Chong located?

Esther Chong practices at 3303 S Bond Ave, Portland, OR 97239. The listed phone number is (503) 494-6594.

What is Esther Chong's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Is Esther Chong enrolled in Medicare?

Yes. Esther Chong 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 Esther Chong accept?

Health plans from BridgeSpan Health Company, Kaiser Permanente, Moda Health Plan, Inc. and Regence BlueCross BlueShield of Oregon list Esther Chong 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.

Is Esther Chong affiliated with any hospitals?

According to CMS data, Esther Chong is affiliated with Ohsu Hospital And Clinics.

When was this NPI record last updated?

The NPPES record for Esther Chong was last updated on July 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.