Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Zheng Zhu Topp, MD

Individual provider Hematology & Oncology Physician · NPI 1023212784

Zheng Zhu Topp, MD practises Medical Oncology in Portland, Oregon. Graduated from University of Mississippi School of Medicine in 2007, 19 years ago. Practices with Providence Health and Services Oregon, a 1,426-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Florida and Oregon.

Years since qualifying
19
Trained at
University of Mississippi School of Medicine
Licensed in
FL, OR
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

9135 SW Barnes Rd Ste 261
Portland, OR 97225-6784
Phone: (503) 216-6300
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence MD203826 (OR)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence ME121637 (FL)

Record details

NPI number1023212784
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 14, 2007
Last updated in NPPESOctober 13, 2021
Certification dateOctober 13, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyMEDICAL ONCOLOGY
Also practisesHEMATOLOGY
Medical schoolUNIVERSITY OF MISSISSIPPI SCHOOL OF MEDICINE
Graduated 2007 (19 years in practice)
Group practice Providence Health And Services Oregon — 1426 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations6 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients207
Services billed 716 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $309 4 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Providence Health and Services Oregon

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1426 clinicians in the practice; 12 are shown here.

Other providers in Portland