2026 NPPES data Medical Oncology Physician NPI 1679524573 M.D.
Verify on CMS →

TIMOTHY WOZNIAK, M.D.

Medical Oncology Physician in NEWARK, Delaware. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.

What the federal data shows

TIMOTHY WOZNIAK, M.D. is a Medical Oncology Physician in NEWARK, Delaware, listed in the federal CMS National Provider Identifier registry.

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.

Board-eligible specialty (heuristic — not verified)

TIMOTHY WOZNIAK, 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 TIMOTHY WOZNIAK, M.D.?

Quality data not reported

NPI registry status

Active

Issued 05/15/2006

NPI 1679524573

Primary specialty

Medical Oncology Physician

Niche

3,792 US NPIs in this specialty

Specialty distribution in Delaware

How Medical Oncology Physician compares to other specialties among Delaware providers

Delaware providers

Medical Oncology Physician share within Delaware

1. Medical Oncology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Medical Oncology Physician share within Delaware

Specialty board-certification context

Estimated specialty board-certified rate — Medical Oncology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Medical Oncology Physician ABMS/AOA estimate

Est. board-certified rate (Medical Oncology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Medical Oncology Physician) — ABMS / AOA estimate

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).

TIMOTHY WOZNIAK, M.D. appears in the CMS NPPES registry as a Medical Oncology Physician provider holding M.D. credentials at 4701 OGLETOWN STANTON RD, NEWARK, DE, 19713, with a listed phone of (302) 731-7782. NPI 1679524573 was issued on 05/15/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WOZNIAK most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Medical Oncology Physician providers operate outside Part D entirely.

Medical Oncology Physician is a narrow specialty nationwide, with 3,792 enrolled providers across 53 states and an average of 689 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

4701 OGLETOWN STANTON RD
NEWARK, DE 19713

Provider Details

NPI 1679524573
Specialty Medical Oncology Physician
Credentials M.D.
Gender Male
NPI Issued 05/15/2006

Medical Oncology Physician Overview

How TIMOTHY WOZNIAK, M.D. fits within the Medical Oncology Physician landscape nationally.

3,792
Medical Oncology Physician Providers in US
53
States with Medical Oncology Physician
689
Avg Claims per Provider

Nearby Medical Oncology Physician Providers in Delaware

Other clinicians with the same primary specialty enrolled in Delaware, drawn from the same CMS NPPES roster as WOZNIAK.

Compare Medical Oncology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is TIMOTHY WOZNIAK, M.D.'s specialty?
TIMOTHY WOZNIAK, M.D. specializes in Medical Oncology Physician and practices in NEWARK, Delaware. Credentials: M.D..
Where is TIMOTHY WOZNIAK, M.D. located?
TIMOTHY WOZNIAK, M.D. is located at 4701 OGLETOWN STANTON RD, NEWARK, DE, 19713. Phone: (302) 731-7782.
What is TIMOTHY WOZNIAK, M.D.'s NPI number?
TIMOTHY WOZNIAK, M.D.'s National Provider Identifier (NPI) is 1679524573, issued on 05/15/2006.
How many Medical Oncology Physician providers are there in the US?
There are 3,792 Medical Oncology Physician providers across 53 states in the US. The average Medical Oncology Physician provider writes 689 Medicare Part D claims per year.
Does TIMOTHY WOZNIAK, M.D. accept Medicare?
TIMOTHY WOZNIAK, 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 TIMOTHY WOZNIAK, M.D.'s credentials?
TIMOTHY WOZNIAK, M.D.'s NPI is 1679524573 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

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