NPI registry status
Active
2026 NPPES data Medical Oncology Physician NPI 1528167830 MD
Verify on CMS → Bassam Ghanem, MD
Medical Oncology Physician in Thousand Oaks, 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 3,792 in Medical 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 · 219 beneficiaries · Medical Oncology Physician avg: 689
MIPS score
99.1/100
▲ 16 pts above national avg 83.1 · Exceptional
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Bassam Ghanem, MD reported a CMS MIPS final score of 99.1/100 - above the 83.1 national average - and filed 1,403 Medicare Part D claims in 2023.
- 99.1/100
- MIPS score · +16 vs avg
- 1K
- Part D claims, 2023
- 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.
Bassam Ghanem, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
99 Top 9% higher than 91% of 477,587 scored providers
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
Where Bassam Ghanem, MD sits
This provider among medical oncology physician peers
Across the 1,527 medical oncology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Bassam Ghanem, MD writes more Part D claims than 84% of them and scores higher on MIPS quality than 91% - placing this provider in the high-volume, high-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
Each dot is one medical oncology physician peer from a representative sample of 60; the gold marker is Bassam Ghanem, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Bassam Ghanem, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Bassam Ghanem, MD?
High performer (top quartile)Primary specialty
Medical Oncology Physician
Medicare Part D claims
1,403 104% vs specialty avg
MIPS final score
99.1/100 16 pts vs avg
Specialty distribution in California
How Medical Oncology Physician compares to other specialties among California providers
Medicare quality performance, MIPS
Bassam Ghanem, MD's 2023 MIPS final score plotted against the Medical Oncology Physician national average
- MIPS Final Score
- 99.1/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Medical Oncology Physician) - 99.1/100 vs national avg 83.1
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).
Bassam Ghanem, MD appears in the CMS NPPES registry as a Medical Oncology Physician provider holding MD credentials at 425 HAALAND DR STE 101, Thousand Oaks, CA, 91361, with a listed phone of (805) 496-2949. NPI 1528167830 was issued on 09/22/2006.
Medicare Part D records for calendar year 2023 show 1,403 prescription claims written by this provider, covering 219 Medicare beneficiaries and totaling roughly $3.4 million in drug spend, with an opioid prescribing rate of 11.0%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 99.1/100 for the 2023 performance year (Quality 85.2), 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
Provider Details
| NPI | 1528167830 |
|---|---|
| Specialty | Medical Oncology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 09/22/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
99.1275
Final Score
Avg: 83.1
85.2396
Quality
100
Promoting Interoperability
Reporting: Group practice
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 Bassam Ghanem, MD. To verify Bassam Ghanem, MD'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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
1,403
Total Claims
$3.4M
Total Drug Cost
219
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,887
- Total Day Supply
- 52,728
- Generic Drug Cost
- $174K
- Opioid Claims
- 155 (11.0% rate)
- Antibiotic Claims
- 57
Patient Demographics
- Average Patient Age
- 74.3 years
- Avg HCC Risk Score
- 2.14
- Gender Split
- 57% female / 43% male
- Age Distribution
- <65: 17, 65-74: 97, 75-84: 70, 85+: 35
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Bassam Ghanem, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Eliquis
Eliquis
179 claims
- Xarelto
Xarelto
133 claims
- Revlimid 68
Revlimid
68 claims
- Ondansetron Hcl 64
Ondansetron Hcl
64 claims
- Hydrocodone-Acetam… 52
Hydrocodone-Acetaminophen
52 claims
- Gabapentin 44
Gabapentin
44 claims
- Levothyroxine Sodium 41
Levothyroxine Sodium
41 claims
- Morphine Sulfate Er 41
Morphine Sulfate Er
41 claims
| Drug | Claims |
|---|---|
| Eliquis Apixaban | 179 |
| Xarelto Rivaroxaban | 133 |
| Revlimid Lenalidomide | 68 |
| Ondansetron Hcl | 64 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 52 |
| Gabapentin | 44 |
| Levothyroxine Sodium | 41 |
| Morphine Sulfate Er Morphine Sulfate | 41 |
| Prochlorperazine Maleate | 40 |
| Anastrozole | 32 |
* 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 Bassam Ghanem, MD 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
Bassam Ghanem, MD's 1,403 claims are above the specialty average of 689.
Nearby Medical Oncology Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Ghanem.
Dr. Ranjana Advani
MD
Stanford, CA
Dr. Kambiz Afrasiabi
M.D.
Anaheim, CA
Dr. Mark Agulnik
MD
Los Angeles, CA
Dr. Weiyun Ai
MD
San Francisco, CA
Dr. Shafqat Akhtar
MD
Red Bluff, CA
Compare Medical 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 Medical 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 Bassam Ghanem, MD's specialty? ▼
Bassam Ghanem, MD specializes in Medical Oncology Physician and practices in Thousand Oaks, California. Credentials: MD.
How much does Bassam Ghanem, MD prescribe under Medicare Part D? ▼
In 2023, Bassam Ghanem, MD wrote 1,403 Medicare Part D claims totaling $3.4M in drug costs for 219 beneficiaries.
What is Bassam Ghanem, MD's Medicare quality score? ▼
Bassam Ghanem, MD has a CMS MIPS Final Score of 99.1/100 (Quality: 85.2). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Bassam Ghanem, MD located? ▼
Bassam Ghanem, MD is located at 425 HAALAND DR STE 101, Thousand Oaks, CA, 91361. Phone: (805) 496-2949.
What is Bassam Ghanem, MD's NPI number? ▼
Bassam Ghanem, MD's National Provider Identifier (NPI) is 1528167830, issued on 09/22/2006.
Does Bassam Ghanem, MD prescribe opioids? ▼
Yes, Bassam Ghanem, MD had 155 opioid claims in 2023 with an opioid prescribing rate of 11.0%.
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 Bassam Ghanem, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Bassam Ghanem, MD's most frequently prescribed drugs include Eliquis, Xarelto, Revlimid. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Bassam Ghanem, MD accept Medicare? ▼
Bassam Ghanem, MD appears in CMS Medicare data with 1,403 Part D claims and 219 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Bassam Ghanem, MD's credentials? ▼
Bassam Ghanem, MD's NPI is 1528167830 with credentials MD. 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 PlainDoctor editorial team.