Zheng Zhu Topp, M.D.
Medical Oncology Physician · Portland, OR
Zheng Zhu Topp, M.D. is a medical oncology physician with a practice address in Portland, Oregon, and NPI 1023212784, issued on Jun 14, 2007. Check the license (Oregon MD203826, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Zheng Zhu Topp
- Credential
- M.D.
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License numbers
- MD203826 OR
ME121637 FL
Self-reported in NPPES; status is on the state search - Practice location
- 9135 SW Barnes RD Ste 261, Portland, OR 97225
- Phone
- (503) 216-6300
- Enumerated
- Jun 14, 2007
- Record last updated
- Oct 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 014743100 FL
- Medicare enrollment
- Enrolled (PECOS I20210729002483); accepts Medicare assignment
- Medical or professional school
- University Of Mississippi School Of Medicine, 2007
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 107 in Oregon → Look up another NPI →
Also registered at 9135 SW Barnes RD Ste 261
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shuntao Cai, PHARM.DOncology Pharmacist1679437669
- Heather Carte, FNPFamily Nurse Practitioner1356930051
- Kimberlie Dame, AGPCNPGerontology Nurse Practitioner1366134843
- Navjit Dharampal, MD, MTMThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1821607201
- Kathleen Dronkowski, FNPFamily Nurse Practitioner1154602902
- Kristine Dukart-Harrington, DNP, AGNP-CGerontology Nurse Practitioner1477914067
Verify Zheng Zhu Topp in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD203826Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average medical oncology physician in 2024
1,553 Medicare Part D claims for 346 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. 59 claims were for opioids.
Most prescribed
- Anastrozole483 claims
- Letrozole197 claims
- Tamoxifen Citrate128 claims
- Alendronate Sodium81 claims
- Exemestane53 claims
- Dexamethasone42 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 79.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $2,611.75
7 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 3,343 providers of this specialty with any payment received $11,773.47 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Providence Health And Services - OregonPortland, OR
- Providence Health And Services OregonPortland, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Zheng Zhu Topp among 107 medical oncology physician records in Oregon
Zheng Zhu Topp, M.D. is one of 107 medical oncology physician records with a practice address in Oregon. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 51% of them.
- NPI issued2007 · 51% of these records are older, 37% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2007 · median 2003 among the 76 with a school on file
- Record last updated2021 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Oncology Physician providers in Oregon
There are 107 medical oncology physician records in Oregon.
All 107 in Oregon → Every provider in Portland → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Anupama Acheson, MDPortland, OR 972251780689513
- Regan Duffy, MDPortland, OR 972251487876827
- Evthokia Hobbs, M.D.Portland, OR 972251326433475
- Keith Lanier, M.D.Portland, OR 972251295738821
- Stacy Lewis, MDPortland, OR 972251124021753
- Christie Moore, D.O.Portland, OR 972251891727608
- Binbin Zheng, MDPortland, OR 972251417435850
- Alison EshlemanPortland, OR 972271255262994
Common questions
What is Zheng Zhu Topp, M.D.'s NPI number?
Zheng Zhu Topp, M.D.'s National Provider Identifier (NPI) is 1023212784, issued on Jun 14, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Zheng Zhu Topp, M.D. located?
The NPPES record lists a practice address at 9135 SW Barnes RD Ste 261, Portland, OR, 97225. Phone: (503) 216-6300. Providers update this record themselves, so call before visiting.
How can I verify Zheng Zhu Topp, M.D.'s license?
NPPES lists Oregon license number MD203826, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Zheng Zhu Topp, M.D. prescribe under Medicare Part D?
In 2024, Zheng Zhu Topp, M.D. had 1,553 Medicare Part D claims for 346 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.
What is Zheng Zhu Topp, M.D.'s MIPS final score?
The 2023 MIPS final score is 79.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.