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DR. ALEXANDRA DOS SANTOS ZIMMER M.D.
NPI 1548496573
Internal Medicine - Medical Oncology in Portland, OR

Active since June 04, 2009PECOS EnrolledAccepts Medicare Assignment
97.83/100
CMS Quality Rating
3191 SW SAM JACKSON PARK ROAD,, MAIL CODE: OC14HO, PORTLAND, OR 97239(503) 494-9160 Get Directions Write a Review

NPPES record last updated: August 18, 2022. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Aug 18, 2022, Jun 24, 2016 (2 updates tracked since 2016).

About Dr. Alexandra Dos Santos Zimmer M.d. NPPES

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

DR. ALEXANDRA DOS SANTOS ZIMMER M.D. (NPI 1548496573) is an individual medical oncology provider in Portland, Oregon, licensed in Oregon (MD211105) and active in the NPI registry since June 2009. She is enrolled in Medicare PECOS, is affiliated with Ohsu Hospital And Clinics, and is a graduate of Other (1999).

NPPES Registry Identity

NPI1548496573
Entity TypeIndividualFemale
Primary Taxonomy207RX0202X
Provider Legal NameDR. ALEXANDRA DOS SANTOS ZIMMERCredential: M.D.
Location Address3191 SW SAM JACKSON PARK ROAD,, MAIL CODE: OC14HOPortland, OR 97239-9723
Mailing Address3191 Sw Sam Jackson Park Road, Mail Code: Oc14hoPortland, OR 97239-3011 · (503) 494-9160
Phone(503) 494-9160
Sole ProprietorNo
Medical School CMSOtherGraduated 1999
Enumeration DateJune 4, 2009
Last NPPES UpdateAugust 18, 20222 updates tracked since enumeration
NPPES CertifiedAugust 13, 2022
✔ NPI 1548496573 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RX0202X
License✔ Licensed in OR · MD211105
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.
3191 SW SAM JACKSON PARK ROAD,, 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

Dr. Alexandra Dos Santos Zimmer 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 ID9830482751
PECOS Enrollment IDI20220802001265
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.

Areas of Expertise CMS Part B claims 3

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
80 services45 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
32 services22 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
23 services23 patients

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

97.83/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality80.97
Promoting Interoperability100
Improvement Activities40

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 Alexandra Zimmer's NPI number?

The NPI number for Alexandra Zimmer is 1548496573. It was assigned to this individual provider in the NPPES registry on June 4, 2009.

Where is Alexandra Zimmer located?

Alexandra Zimmer practices at 3191 SW Sam Jackson Park Road, Mail Code: Oc14ho, Portland, OR 97239. The listed phone number is (503) 494-9160.

What is Alexandra Zimmer's specialty?

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

Is Alexandra Zimmer enrolled in Medicare?

Yes. Alexandra Zimmer 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 Alexandra Zimmer accept?

Health plans from BridgeSpan Health Company, Kaiser Permanente, Moda Health Plan, Inc. and Regence BlueCross BlueShield of Oregon list Alexandra Zimmer 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 Alexandra Zimmer affiliated with any hospitals?

According to CMS data, Alexandra Zimmer is affiliated with Ohsu Hospital And Clinics.

When was this NPI record last updated?

The NPPES record for Alexandra Zimmer was last updated on August 18, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.