2026 NPPES data Hematology & Oncology Physician NPI 1194753350 M.D.
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AILEEN CHEN, M.D.

Hematology & Oncology Physician in HOLMDEL, New Jersey. 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
1K
Medicare Part D claims · 276 beneficiaries · Hematology & Oncology Physician avg: 847
MIPS score
88.1805/100
▲ 5 pts above national avg 83.1 · [object Object]
Industry payments
$3.0K
161 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: AILEEN CHEN, M.D. is a Hematology & Oncology Physician ([object Object]) practicing in HOLMDEL, New Jersey with a Medicare Part D prescribing footprint of 1K claims across 276 beneficiaries . Their CMS MIPS Final Score of 88.1805/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $3.0K across 161 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: AILEEN CHEN, M.D. reported a CMS MIPS final score of 88.1805 out of 100, above the 83.1 national average, and filed 1,414 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

AILEEN CHEN, 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).

AILEEN CHEN, M.D. at a glance

High performer (top quartile)

NPI registry status

Active

Issued 06/28/2006

NPI 1194753350

Primary specialty

Hematology & Oncology Physician

Mid-sized

11,215 US NPIs in this specialty

Medicare Part D claims

1,414 67% vs specialty avg

2023 prescription claims

Specialty avg: 847

MIPS final score

88.1805/100 5.080500000000001% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in New Jersey

How Hematology & Oncology Physician compares to other specialties among New Jersey providers

New Jersey providers

Hematology & Oncology Physician share within New Jersey

1. Hematology & Oncology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Hematology & Oncology Physician share within New Jersey

Medicare quality performance — MIPS

AILEEN CHEN, M.D.'s 2023 MIPS final score plotted against the Hematology & Oncology Physician national average

High performer (top quartile)
MIPS Final Score
88.1805/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Hematology & Oncology Physician) — 88.1805/100 vs national avg 83.1

0%100%National avg83%88.2%
MIPS final score (Hematology & Oncology Physician) — 88.1805/100 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).

AILEEN CHEN, M.D. is a Hematology & Oncology Physician provider practicing in HOLMDEL, New Jersey, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1194753350. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

AILEEN CHEN, M.D. appears in the CMS NPPES registry as a Hematology & Oncology Physician provider holding M.D. credentials at 723 N BEERS ST, HOLMDEL, NJ, 07733, with a listed phone of (732) 739-8644. NPI 1194753350 was issued on 06/28/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHEN 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 1,414 prescription claims written by this provider, covering 276 Medicare beneficiaries and totaling roughly $3.8 million in drug spend, with an opioid prescribing rate of 6.0%. 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 88.1805/100 for the 2023 performance year (Quality 69.419), compared with the national average of 83.1.

Hematology & Oncology Physician is a mid-sized specialty nationwide, with 11,215 enrolled providers across 54 states and an average of 847 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

723 N BEERS ST
HOLMDEL, NJ 07733

Provider Details

NPI 1194753350
Specialty Hematology & Oncology Physician
Credentials M.D.
Gender Female
NPI Issued 06/28/2006

CMS Quality Score (MIPS)

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

88.1805
Final Score
Avg: 83.1
69.419
Quality
100
Promoting Interoperability

Reporting: Individual

Hospital and facility affiliations

Facilities where AILEEN CHEN, 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.

REGIONAL CANCER CARE ASSOCIATES LLC
HACKENSACK, NJ

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

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for AILEEN CHEN, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$3.0K

Largest payer

Adaptive Biotechnologies Corporation

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Medicare Part D Prescribing Data

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

1,414
Total Claims
$3.8M
Total Drug Cost
276
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,503
Total Day Supply
72,217
Generic Drug Cost
$174K
Opioid Claims
85 (6.0% rate)
Antibiotic Claims
31

Patient Demographics

Average Patient Age
74.7 years
Avg HCC Risk Score
1.97
Gender Split
75% female / 25% male
Age Distribution
<65: 19, 65-74: 124, 75-84: 97, 85+: 36

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Letrozole
248
Xarelto
Rivaroxaban
96
Eliquis
Apixaban
65
Verzenio
Abemaciclib
63
Anastrozole
42
Alendronate Sodium
41
Valacyclovir
Valacyclovir Hcl
40
Exemestane
34
Calquence
Acalabrutinib Maleate
33
Ondansetron Odt
Ondansetron
32

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

Hematology & Oncology Physician Overview

How AILEEN CHEN, M.D. fits within the Hematology & Oncology Physician landscape nationally.

11,215
Hematology & Oncology Physician Providers in US
54
States with Hematology & Oncology Physician
847
Avg Claims per Provider

AILEEN CHEN, M.D.'s 1,414 claims are above the specialty average of 847.

Nearby Hematology & Oncology Physician Providers in New Jersey

Other clinicians with the same primary specialty enrolled in New Jersey, drawn from the same CMS NPPES roster as CHEN.

Compare Hematology & Oncology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is AILEEN CHEN, M.D.'s specialty?
AILEEN CHEN, M.D. specializes in Hematology & Oncology Physician and practices in HOLMDEL, New Jersey. Credentials: M.D..
How much does AILEEN CHEN, M.D. prescribe under Medicare Part D?
In 2023, AILEEN CHEN, M.D. wrote 1,414 Medicare Part D claims totaling $3.8M in drug costs for 276 beneficiaries.
What is AILEEN CHEN, M.D.'s Medicare quality score?
AILEEN CHEN, M.D. has a CMS MIPS Final Score of 88.1805/100 (Quality: 69.419). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is AILEEN CHEN, M.D. located?
AILEEN CHEN, M.D. is located at 723 N BEERS ST, HOLMDEL, NJ, 07733. Phone: (732) 739-8644.
What is AILEEN CHEN, M.D.'s NPI number?
AILEEN CHEN, M.D.'s National Provider Identifier (NPI) is 1194753350, issued on 06/28/2006.
Does AILEEN CHEN, M.D. prescribe opioids?
Yes, AILEEN CHEN, M.D. had 85 opioid claims in 2023 with an opioid prescribing rate of 6.0%.
How many Hematology & Oncology Physician providers are there in the US?
There are 11,215 Hematology & Oncology Physician providers across 54 states in the US. The average Hematology & Oncology Physician provider writes 847 Medicare Part D claims per year.
What drugs does AILEEN CHEN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, AILEEN CHEN, M.D.'s most frequently prescribed drugs include Letrozole, Xarelto, Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does AILEEN CHEN, M.D. accept Medicare?
AILEEN CHEN, M.D. appears in CMS Medicare data with 1,414 Part D claims and 276 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify AILEEN CHEN, M.D.'s credentials?
AILEEN CHEN, M.D.'s NPI is 1194753350 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