2026 NPPES data Radiation Oncology Physician NPI 1417910308 M.D.
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Li-Fen Chang, M.D.

Radiation Oncology Physician in Portsmouth, Ohio. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,018 in Radiation 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.
Prescribing volume
12
Medicare Part D claims · Radiation Oncology Physician avg: 186
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Li-Fen Chang, M.D. filed 12 Medicare Part D claims in 2023 as a Radiation Oncology Physician in Portsmouth, Ohio.

12
Part D claims, 2023

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.

Li-Fen Chang, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023, across all CMS prescribers nationally

12 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2K+: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board-eligible specialty (heuristic, not verified)

Li-Fen Chang, 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 Li-Fen Chang, M.D.?

Quality data not reported

NPI registry status

Active

Issued 04/11/2006

NPI 1417910308

Primary specialty

Radiation Oncology Physician

Mid-sized

6,018 US NPIs in this specialty

Medicare Part D claims

12 94% vs specialty avg

2023 prescription claims

Specialty avg: 186

Specialty distribution in Ohio

How Radiation Oncology Physician compares to other specialties among Ohio providers

Ohio providers

Largest specialties in Ohio (% of in-state providers)

Case Manager/Care Coordinator - 10.9%Case Manager/Care Coordinator10.9%Student in an Organized Health Care Education/Training Program - 4.7%Student in an Organized Health Care Education/Training Program4.7%Licensed Practical Nurse - 4%Licensed Practical Nurse4%Addiction (Substance Use Disorder) Counselor - 3.5%Addiction (Substance Use Disorder) Counselor3.5%Registered Nurse - 3.4%Registered Nurse3.4%Pharmacist - 3.4%Pharmacist3.4%Radiation Oncology Physician - 0.1%Radiation Oncology Physician0.1%
Largest specialties in Ohio (% of in-state 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 Radiation Oncology Physician. Verify directly:

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).

Li-Fen Chang, M.D. appears in the CMS NPPES registry as a Radiation Oncology Physician provider holding M.D. credentials at 1121 KINNEYS LN, Portsmouth, OH, 45662, with a listed phone of (740) 356-7571. NPI 1417910308 was issued on 04/11/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Chang 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 records for calendar year 2023 show 12 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $156 in drug spend. These figures capture only Medicare Part D, commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Radiation Oncology Physician is a mid-sized specialty nationwide, with 6,018 enrolled providers across 52 states and an average of 186 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

1121 KINNEYS LN
Portsmouth, OH 45662

Provider Details

NPI 1417910308
Specialty Radiation Oncology Physician
Credentials M.D.
Gender Female
NPI Issued 04/11/2006

License & disciplinary context - Ohio OMB 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 ~48K Ohio medical licensees in 2023 - they are NOT specific to Li-Fen Chang, M.D.. To verify Li-Fen Chang, M.D.'s current license status, search the OMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

158
Total board actions, Ohio 2023
Across 154 cases
3.29
Actions per 1,000 licensees
Ohio statewide rate
probation
Most common action type
56 cases

OMB 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 Ohio disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

12
Total Claims
$156
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
18
Total Day Supply
444
Brand Drug Cost
$0
Generic Drug Cost
$156

Patient Demographics

Average Patient Age
69.6 years
Avg HCC Risk Score
0.95

Radiation Oncology Physician Overview

How Li-Fen Chang, M.D. fits within the Radiation Oncology Physician landscape nationally.

6,018
Radiation Oncology Physician Providers in US
52
States with Radiation Oncology Physician
186
Avg Claims per Provider

Li-Fen Chang, M.D.'s 12 claims are below the specialty average of 186.

Nearby Radiation Oncology Physician Providers in Ohio

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

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

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Ohio medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Radiation Oncology Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Li-Fen Chang, M.D.'s specialty?
Li-Fen Chang, M.D. specializes in Radiation Oncology Physician and practices in Portsmouth, Ohio. Credentials: M.D..
How much does Li-Fen Chang, M.D. prescribe under Medicare Part D?
In 2023, Li-Fen Chang, M.D. wrote 12 Medicare Part D claims totaling $156 in drug costs for N/A beneficiaries.
Where is Li-Fen Chang, M.D. located?
Li-Fen Chang, M.D. is located at 1121 KINNEYS LN, Portsmouth, OH, 45662. Phone: (740) 356-7571.
What is Li-Fen Chang, M.D.'s NPI number?
Li-Fen Chang, M.D.'s National Provider Identifier (NPI) is 1417910308, issued on 04/11/2006.
How many Radiation Oncology Physician providers are there in the US?
There are 6,018 Radiation Oncology Physician providers across 52 states in the US. The average Radiation Oncology Physician provider writes 186 Medicare Part D claims per year.
Does Li-Fen Chang, M.D. accept Medicare?
Li-Fen Chang, M.D. appears in CMS Medicare data with 12 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Li-Fen Chang, M.D.'s credentials?
Li-Fen Chang, M.D.'s NPI is 1417910308 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.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
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

Compiled from official public sources by the PlainDoctor editorial team.