NPI registry status
Active
2026 NPPES data Hematology & Oncology Physician NPI 1891760542 M.D.
Verify on CMS → Wen-Wei Tchou, M.D.
Hematology & Oncology Physician in Northport, New York.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 11,232 in Hematology & Oncology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
What the federal data shows
Wen-Wei Tchou, M.D. is a Hematology & Oncology Physician in Northport, New York, listed in the federal CMS National Provider Identifier registry.
- #70
- Hematology & Oncology Physician rank among New York specialties
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
CMS NPPES provider registry desk
NPI 1891760542 · Hematology & Oncology Physician
NPI-10 · ENUM-LEGACY · TAX-MID · RX-NONE · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1891760542
- ENUM-LEGACY 2006
- TAX-MID 11K Hematology &
- RX-NONE No Part D
- BOOK-LIGHT 967 in New York
- PHOTO-ENUM Yudhishtra Markan · 2006
◑
Board-eligible specialty (heuristic, not verified)
Wen-Wei Tchou, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Wen-Wei Tchou, M.D.?
Quality data not reportedPrimary specialty
Hematology & Oncology Physician
Specialty distribution in New York
How Hematology & Oncology Physician compares to other specialties among New York providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Hematology & Oncology Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1891760542 |
|---|---|
| Specialty | Hematology & Oncology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 02/17/2006 |
License & disciplinary context - New York NYSBPMC 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~100K New York medical licensees in 2023 - they are NOT specific to Wen-Wei Tchou, M.D.. To verify Wen-Wei Tchou, M.D.'s current license status, search the NYSBPMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
312
Total board actions, New York 2023
Across 302 cases
3.12
Actions per 1,000 licensees
New York statewide rate
probation
Most common action type
89 cases
NYSBPMC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the New York disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Hematology & Oncology Physician Overview
How Wen-Wei Tchou, M.D. fits within the Hematology & Oncology Physician landscape nationally.
11,232
Hematology & Oncology Physician Providers in US
54
States with Hematology & Oncology Physician
847
Avg Claims per Provider
Nationwide Hematology & Oncology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Tchou, both outside New York so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Hematology & Oncology Physician Providers in New York
Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as Tchou.
One of 967 Hematology & Oncology Physician providers enrolled in New York, 5 are shown here.
Dr. Anum Aamir
M.D
Astoria, NY
Dr. Robert Abderhalden
MD
Painted Post, NY
Dr. Mohammad Maher Abdul Hay
MD
New York, NY
Dr. George Abraham
MD
Rochester, NY
Dr. Avram Abramowitz
M.D.
Fresh Meadows, NY
Compare Hematology & Oncology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Wen-Wei Tchou, M.D.'s specialty? ▼
Wen-Wei Tchou, M.D. specializes in Hematology & Oncology Physician and practices in Northport, New York. Credentials: M.D..
Where is Wen-Wei Tchou, M.D. located? ▼
Wen-Wei Tchou, M.D. is located at 79 MIDDLEVILLE RD, Northport, NY, 11768. Phone: (631) 261-4400.
What is Wen-Wei Tchou, M.D.'s NPI number? ▼
Wen-Wei Tchou, M.D.'s National Provider Identifier (NPI) is 1891760542, issued on 02/17/2006.
How many Hematology & Oncology Physician providers are there in the US? ▼
There are 11,232 Hematology & Oncology Physician providers across 54 states in the US. The average Hematology & Oncology Physician provider writes 847 Medicare Part D claims per year.
Does Wen-Wei Tchou, M.D. accept Medicare? ▼
Wen-Wei Tchou, M.D. appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Wen-Wei Tchou, M.D.'s credentials? ▼
Wen-Wei Tchou, M.D.'s NPI is 1891760542 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.