2026 NPPES data Medical Oncology Physician NPI 1558512921 M.D.
Verify on CMS →

MICHAEL KENG, M.D.

Medical Oncology Physician in CHARLOTTESVILLE, Virginia. 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.
Prescribing volume
179
Medicare Part D claims · 55 beneficiaries · Medical Oncology Physician avg: 689
Generic prescribing
73%
generic claims · 27% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
79.3949/100
▼ 4 pts below national avg 83.1 · [object Object]

What the federal data shows

MICHAEL KENG, M.D. reported a CMS MIPS final score of 79.3949/100 — below the 83.1 national average — and filed 179 Medicare Part D claims in 2023.

79.3949/100
MIPS score · -4 vs avg
179
Part D claims, 2023
73%
generic prescribing
Likely
board-certified (heuristic)

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.

MICHAEL KENG, M.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

79 30th percentile higher than 30% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). This entry sits in this band. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

MICHAEL KENG, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about MICHAEL KENG, M.D.?

Near national average

NPI registry status

Active

Issued 10/03/2008

NPI 1558512921

Primary specialty

Medical Oncology Physician

Niche

3,792 US NPIs in this specialty

Medicare Part D claims

179 74% vs specialty avg

2023 prescription claims

Specialty avg: 689

MIPS final score

79.3949/100 3.7050999999999874% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Virginia

How Medical Oncology Physician compares to other specialties among Virginia providers

Virginia providers

Medical Oncology Physician share within Virginia

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

Medicare quality performance — MIPS

MICHAEL KENG, M.D.'s 2023 MIPS final score plotted against the Medical Oncology Physician national average

Near national average
MIPS Final Score
79.3949/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Medical Oncology Physician) — 79.3949/100 vs national avg 83.1

0%100%National avg83%79.4%
MIPS final score (Medical Oncology Physician) — 79.3949/100 vs national avg 83.1

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).

MICHAEL KENG, M.D. appears in the CMS NPPES registry as a Medical Oncology Physician provider holding M.D. credentials at 1240 LEE ST, CHARLOTTESVILLE, VA, 22908, with a listed phone of (434) 924-9333. NPI 1558512921 was issued on 10/03/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KENG 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 179 prescription claims written by this provider, covering 55 Medicare beneficiaries and totaling roughly $540K in drug spend, split 27% brand-name and 73% generic by claim count. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 79.3949/100 for the 2023 performance year (Quality 73.6607, Cost 57.6556), compared with the national average of 83.1.

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

1240 LEE ST
CHARLOTTESVILLE, VA 22908

Provider Details

NPI 1558512921
Specialty Medical Oncology Physician
Credentials M.D.
Gender Male
NPI Issued 10/03/2008

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

79.3949
Final Score
Avg: 83.1
73.6607
Quality
57.6556
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where MICHAEL KENG, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

UNIVERSITY OF VIRGINIA PHYSICIANS GROUP
CHARLOTTESVILLE, VA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Brand vs generic prescribing mix · Above average

MICHAEL KENG, M.D. — brand share 27.0%
Specialty average (est.)

27% brand-name claims vs 73% generic, on 179 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

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

179
Total Claims
$540K
Total Drug Cost
55
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
230
Total Day Supply
5,897
Brand vs Generic
27% brand / 73% generic
Brand Drug Cost
$534K
Generic Drug Cost
$6K
Antibiotic Claims
16

Patient Demographics

Average Patient Age
71.8 years
Avg HCC Risk Score
2.77
Gender Split
53% female / 47% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What MICHAEL KENG, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Acyclovir
41
Hydroxyurea
18
Venclexta
Venetoclax
12
Imatinib Mesylate
11

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Medical Oncology Physician Overview

How MICHAEL KENG, 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

MICHAEL KENG, M.D.'s 179 claims are below the specialty average of 689.

Nearby Medical Oncology Physician Providers in Virginia

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

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

Frequently Asked Questions

What is MICHAEL KENG, M.D.'s specialty?
MICHAEL KENG, M.D. specializes in Medical Oncology Physician and practices in CHARLOTTESVILLE, Virginia. Credentials: M.D..
How much does MICHAEL KENG, M.D. prescribe under Medicare Part D?
In 2023, MICHAEL KENG, M.D. wrote 179 Medicare Part D claims totaling $540K in drug costs for 55 beneficiaries.
What is MICHAEL KENG, M.D.'s Medicare quality score?
MICHAEL KENG, M.D. has a CMS MIPS Final Score of 79.3949/100 (Quality: 73.6607, Cost: 57.6556). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is MICHAEL KENG, M.D. located?
MICHAEL KENG, M.D. is located at 1240 LEE ST, CHARLOTTESVILLE, VA, 22908. Phone: (434) 924-9333.
What is MICHAEL KENG, M.D.'s NPI number?
MICHAEL KENG, M.D.'s National Provider Identifier (NPI) is 1558512921, issued on 10/03/2008.
Does MICHAEL KENG, M.D. prescribe more brand-name or generic drugs?
MICHAEL KENG, M.D.'s prescribing is 27% brand-name and 73% generic drugs by claim count, with $534K in brand drug costs.
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.
What drugs does MICHAEL KENG, M.D. prescribe most often?
Based on 2023 Medicare Part D data, MICHAEL KENG, M.D.'s most frequently prescribed drugs include Acyclovir, Hydroxyurea, Venclexta. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MICHAEL KENG, M.D. accept Medicare?
MICHAEL KENG, M.D. appears in CMS Medicare data with 179 Part D claims and 55 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MICHAEL KENG, M.D.'s credentials?
MICHAEL KENG, M.D.'s NPI is 1558512921 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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