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2026 NPPES data Hematology & Oncology Physician NPI 1275502940 M.D.
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Benjamin Esparaz, M.D.

Hematology & Oncology Physician in Decatur, Illinois.

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.
Prescribing volume
1K
Medicare Part D claims · 254 beneficiaries · Hematology & Oncology Physician avg: 847
Generic prescribing
80%
generic claims · 20% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
77.7/100
▼ 6 pts below national avg 83.5 · Above neutral
Industry payments
$246.83
14 payments · CMS Open Payments (Sunshine Act)
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Benjamin Esparaz, M.D. reported a CMS MIPS final score of 77.7/100 - below the 83.5 national average - and filed 1,130 Medicare Part D claims in 2023.

77.7/100
MIPS score · -6 vs avg
1K
Part D claims, 2023
80%
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.

Benjamin Esparaz, M.D.'s MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

78 ≥ 20th percentile 20% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). This entry sits in this band. 80–90: 129,887 measured providers (29%). Above this entry. 90+: 189,403 measured providers (42%). Above this entry. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured 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.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Benjamin Esparaz, M.D. sits

This provider among hematology & oncology physician peers

Across the 4,019 hematology & oncology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Benjamin Esparaz, M.D. writes more Part D claims than 69% of them and scores higher on MIPS quality than 20% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.148.372.496.6Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 68Benjamin Esparaz, M.D., Part D claim volume, percentile in specialty: 69 · MIPS quality, percentile: 20
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one hematology & oncology physician peer from a representative sample of 60; the gold marker is Benjamin Esparaz, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Benjamin Esparaz, 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 Benjamin Esparaz, M.D.?

Below national average

NPI registry status

Active

Issued 03/15/2006

NPI 1275502940

Primary specialty

Hematology & Oncology Physician

Mid-sized

11,232 US NPIs in this specialty

Medicare Part D claims

1,130 33% vs specialty avg

2023 prescription claims

Specialty avg: 847

MIPS final score

77.7/100 5.8 pts vs avg

Above neutral band

vs 83.5 national avg

Specialty distribution in Illinois

How Hematology & Oncology Physician compares to other specialties among Illinois providers

Illinois providers
Clinical Social Worker5.2%Physical Therapist5%Mental Health Counselor4.5%Speech-Language Pathologist4.2%Student in an Organized Heal…4.2%Pharmacist4.1%Hematology & Oncology Physic…0.2%
Largest specialties in Illinois (% of in-state providers)

Medicare quality performance, MIPS

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

Below national average
MIPS Final Score
77.7/100
vs 83.5 national avg · 2023 performance year

MIPS final score (Hematology & Oncology Physician) - 77.7/100 vs national avg 83.5

0%100%National avg84%77.7%
MIPS final score (Hematology & Oncology Physician) - 77.7/100 vs national avg 83.5
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).

Benjamin Esparaz, M.D. appears in the CMS NPPES registry as a Hematology & Oncology Physician provider holding M.D. credentials at 210 W MCKINLEY AVE STE 1, Decatur, IL, 62526, with a listed phone of (217) 876-6600. NPI 1275502940 was issued on 03/15/2006.

Medicare Part D records for calendar year 2023 show 1,130 prescription claims written by this provider, covering 254 Medicare beneficiaries and totaling roughly $3.4 million in drug spend, split 20% brand-name and 80% generic by claim count, with an opioid prescribing rate of 7.5%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 77.7/100 for the 2023 performance year (Quality 73.4, Cost 52.7), compared with the 83.5 average among clinicians with a measured score.

Hematology & Oncology Physician is a mid-sized specialty nationwide, with 11,232 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

210 W MCKINLEY AVE STE 1
Decatur, IL 62526
(217) 876-6600

Provider Details

NPI 1275502940
Specialty Hematology & Oncology Physician
Credentials M.D.
Gender Male
NPI Issued 03/15/2006

CMS Quality Score (MIPS)

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

77.6748
Final Score
Measured-score avg: 83.5
73.396
Quality
52.7022
Cost
83
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Benjamin Esparaz, 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.

Cancer Care Specialists OF Central Illinois SC
Pana, IL

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 Benjamin Esparaz, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$247

Largest payer

PFIZER INC.

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.

License & disciplinary context - Illinois IDFPR 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 ~42K Illinois medical licensees in 2023 - they are NOT specific to Benjamin Esparaz, M.D.. To verify Benjamin Esparaz, M.D.'s current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases

IDFPR 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 Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

Benjamin Esparaz, M.D. - brand share 20.0%
Hematology & Oncology Physician average

20% brand-name claims vs 80% generic, on 1,130 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.

1,130
Total Claims
$3.4M
Total Drug Cost
254
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,776
Total Day Supply
46,766
Brand vs Generic
20% brand / 80% generic
Brand Drug Cost
$3.0M
Generic Drug Cost
$351K
Opioid Claims
85 (7.5% rate)
Antibiotic Claims
41

Patient Demographics

Average Patient Age
72.9 years
Avg HCC Risk Score
2.08
Gender Split
65% female / 35% male
Age Distribution
<65: 21, 65-74: 140, 75-84: 72, 85+: 21

Top Prescribed Drugs (Medicare Part D)

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

What Benjamin Esparaz, 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
Anastrozole
 195
Ondansetron Hcl
 66
Imbruvica
Ibrutinib
65
Acyclovir
 60
Prochlorperazine Maleate
 51
Dexamethasone
 38
Raloxifene Hcl
 32
Prednisone
 25
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
24
Hydroxyurea
 24

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

More Hematology & Oncology Physician in IL → All providers in Illinois → Compare specialties →

Hematology & Oncology Physician Overview

How Benjamin Esparaz, 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

Benjamin Esparaz, M.D.'s 1,130 claims are above the specialty average of 847.

Nearby Hematology & Oncology Physician Providers in Illinois

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

Dr. Yasmin Abaza
M.D.
Chicago, IL
Dr. Worood Abboud
M.D.
Joliet, IL
Dr. Sabree Abedrabo
MD
Park Ridge, IL
Dr. Majed Abuhajir
MD
Rockford, IL
Dr. Kehinde Adekola
MD
Chicago, IL

Compare Hematology & 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 Illinois medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Hematology & 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.

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Frequently Asked Questions

What is Benjamin Esparaz, M.D.'s specialty? ▼
Benjamin Esparaz, M.D. specializes in Hematology & Oncology Physician and practices in Decatur, Illinois. Credentials: M.D..
How much does Benjamin Esparaz, M.D. prescribe under Medicare Part D? ▼
In 2023, Benjamin Esparaz, M.D. wrote 1,130 Medicare Part D claims totaling $3.4M in drug costs for 254 beneficiaries.
What is Benjamin Esparaz, M.D.'s Medicare quality score? ▼
Benjamin Esparaz, M.D. has a CMS MIPS Final Score of 77.7/100 (Quality: 73.4, Cost: 52.7). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Benjamin Esparaz, M.D. located? ▼
Benjamin Esparaz, M.D. is located at 210 W MCKINLEY AVE STE 1, Decatur, IL, 62526. Phone: (217) 876-6600.
What is Benjamin Esparaz, M.D.'s NPI number? ▼
Benjamin Esparaz, M.D.'s National Provider Identifier (NPI) is 1275502940, issued on 03/15/2006.
Does Benjamin Esparaz, M.D. prescribe more brand-name or generic drugs? ▼
Benjamin Esparaz, M.D.'s prescribing is 20% brand-name and 80% generic drugs by claim count, with $3.0M in brand drug costs.
Does Benjamin Esparaz, M.D. prescribe opioids? ▼
Yes, Benjamin Esparaz, M.D. had 85 opioid claims in 2023 with an opioid prescribing rate of 7.5%.
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.
What drugs does Benjamin Esparaz, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Benjamin Esparaz, M.D.'s most frequently prescribed drugs include Anastrozole, Ondansetron Hcl, Imbruvica. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Benjamin Esparaz, M.D. accept Medicare? ▼
Benjamin Esparaz, M.D. appears in CMS Medicare data with 1,130 Part D claims and 254 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Benjamin Esparaz, M.D.'s credentials? ▼
Benjamin Esparaz, M.D.'s NPI is 1275502940 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.
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

Compiled from official public sources by the editorial process.

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.