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2026 NPPES data Hematology & Oncology Physician NPI 1033165139 M.D.
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Behnam Ebrahimi, M.D.

Hematology & Oncology Physician in Rancho Cucamonga, California.

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 · 168 beneficiaries · Hematology & Oncology Physician avg: 847
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
68.5/100
▼ 15 pts below national avg 83.5 · Mid-tier
Industry payments
$11.7K
55 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

Behnam Ebrahimi, M.D. reported a CMS MIPS final score of 68.5/100 - below the 83.5 national average - and filed 1,172 Medicare Part D claims in 2023.

68.5/100
MIPS score · -15 vs avg
1K
Part D claims, 2023
83%
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.

Behnam Ebrahimi, 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.

69 ≥ 8th percentile 8% 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%). This entry sits in this band. 70–80: 94,570 measured providers (21%). Above this entry. 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 Behnam Ebrahimi, 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, Behnam Ebrahimi, M.D. writes more Part D claims than 70% of them and scores higher on MIPS quality than 6% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

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: 8Point, 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: 10Point, 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: 15Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 5Point, 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: 12Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 7Point, 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: 68Behnam Ebrahimi, M.D., Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 6
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 Behnam Ebrahimi, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Behnam Ebrahimi, 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 Behnam Ebrahimi, M.D.?

Below national average

NPI registry status

Active

Issued 05/26/2006

NPI 1033165139

Primary specialty

Hematology & Oncology Physician

Mid-sized

11,232 US NPIs in this specialty

Medicare Part D claims

1,172 38% vs specialty avg

2023 prescription claims

Specialty avg: 847

MIPS final score

68.5/100 15 pts vs avg

Mid-tier band

vs 83.5 national avg

Specialty distribution in California

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

California providers
Behavior Technician17.3%Marriage & Family Therapist5.5%Student in an Organized Heal…5%Mental Health Counselor3.9%Pharmacist3.5%Clinical Social Worker3.1%Hematology & Oncology Physic…0.1%
Largest specialties in California (% of in-state providers)

Medicare quality performance, MIPS

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

Below national average
MIPS Final Score
68.5/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%68.5%
MIPS final score (Hematology & Oncology Physician) - 68.5/100 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).

Behnam Ebrahimi, M.D. appears in the CMS NPPES registry as a Hematology & Oncology Physician provider holding M.D. credentials at 12577 NAPLES WAY, Rancho Cucamonga, CA, 91739, with a listed phone of (714) 281-2993. NPI 1033165139 was issued on 05/26/2006.

Medicare Part D records for calendar year 2023 show 1,172 prescription claims written by this provider, covering 168 Medicare beneficiaries and totaling roughly $2.2 million in drug spend, split 17% brand-name and 83% generic by claim count, with an opioid prescribing rate of 11.9%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 68.5/100 for the 2023 performance year (Quality 10, Cost 65), 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

12577 NAPLES WAY
Rancho Cucamonga, CA 91739
(714) 281-2993

Provider Details

NPI 1033165139
Specialty Hematology & Oncology Physician
Credentials M.D.
Gender Male
NPI Issued 05/26/2006

CMS Quality Score (MIPS)

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

68.4898
Final Score
Measured-score avg: 83.5
10
Quality
64.966
Cost
84
Promoting Interoperability

Reporting: Individual

Hospital and facility affiliations

Facilities where Behnam Ebrahimi, 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.

Inland Valley Hematology Oncology Associates A Professional Medical
Pomona, CA

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 Behnam Ebrahimi, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$11.7K

Largest payer

E.R. Squibb & Sons, L.L.C.

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 - California MBC 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 ~150K California medical licensees in 2023 - they are NOT specific to Behnam Ebrahimi, M.D.. To verify Behnam Ebrahimi, M.D.'s current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC 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 California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

Behnam Ebrahimi, M.D. - brand share 17.0%
Hematology & Oncology Physician average

17% brand-name claims vs 83% generic, on 1,172 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.

1,172
Total Claims
$2.2M
Total Drug Cost
168
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,640
Total Day Supply
40,815
Brand vs Generic
17% brand / 83% generic
Brand Drug Cost
$1.6M
Generic Drug Cost
$603K
Opioid Claims
139 (11.9% rate)
Antibiotic Claims
14

Patient Demographics

Average Patient Age
73.8 years
Avg HCC Risk Score
2.09
Gender Split
60% female / 40% male

Top Prescribed Drugs (Medicare Part D)

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

What Behnam Ebrahimi, 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
Dexamethasone
 120
Anastrozole
 106
Ondansetron Odt
Ondansetron
88
Prochlorperazine Maleate
 56
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
55
Prednisone
 42
Fentanyl
 39
Potassium Chloride
 32
Gabapentin
 31
Xtandi
Enzalutamide
31

* 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 CA → All providers in California → Compare specialties →

Hematology & Oncology Physician Overview

How Behnam Ebrahimi, 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

Behnam Ebrahimi, M.D.'s 1,172 claims are above the specialty average of 847.

Nearby Hematology & Oncology Physician Providers in California

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

One of 1,293 Hematology & Oncology Physician providers enrolled in California, 5 are shown here.

Dr. Mark Abate
M.D.
Santa Barbara, CA
Dr. Iman Abdalla
MD
Los Angeles, CA
Dr. Nihal Abdulla
MD
Los Alamitos, CA
Dr. Oyewale Abidoye
M.D.
La Jolla, CA
Dr. Mohamad Adada
M.D., PHD
Roseville, CA

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 California 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 Behnam Ebrahimi, M.D.'s specialty? ▼
Behnam Ebrahimi, M.D. specializes in Hematology & Oncology Physician and practices in Rancho Cucamonga, California. Credentials: M.D..
How much does Behnam Ebrahimi, M.D. prescribe under Medicare Part D? ▼
In 2023, Behnam Ebrahimi, M.D. wrote 1,172 Medicare Part D claims totaling $2.2M in drug costs for 168 beneficiaries.
What is Behnam Ebrahimi, M.D.'s Medicare quality score? ▼
Behnam Ebrahimi, M.D. has a CMS MIPS Final Score of 68.5/100 (Quality: 10, Cost: 65). 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 Behnam Ebrahimi, M.D. located? ▼
Behnam Ebrahimi, M.D. is located at 12577 NAPLES WAY, Rancho Cucamonga, CA, 91739. Phone: (714) 281-2993.
What is Behnam Ebrahimi, M.D.'s NPI number? ▼
Behnam Ebrahimi, M.D.'s National Provider Identifier (NPI) is 1033165139, issued on 05/26/2006.
Does Behnam Ebrahimi, M.D. prescribe more brand-name or generic drugs? ▼
Behnam Ebrahimi, M.D.'s prescribing is 17% brand-name and 83% generic drugs by claim count, with $1.6M in brand drug costs.
Does Behnam Ebrahimi, M.D. prescribe opioids? ▼
Yes, Behnam Ebrahimi, M.D. had 139 opioid claims in 2023 with an opioid prescribing rate of 11.9%.
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 Behnam Ebrahimi, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Behnam Ebrahimi, M.D.'s most frequently prescribed drugs include Dexamethasone, Anastrozole, Ondansetron Odt. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Behnam Ebrahimi, M.D. accept Medicare? ▼
Behnam Ebrahimi, M.D. appears in CMS Medicare data with 1,172 Part D claims and 168 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Behnam Ebrahimi, M.D.'s credentials? ▼
Behnam Ebrahimi, M.D.'s NPI is 1033165139 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.